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## net.sf.saxon
Class Configuration

    java.lang.Object
      net.sf.saxon.Configuration

All Implemented Interfaces:
  Serializable, SourceResolver, NotationSet

Direct Known Subclasses:
  ProfessionalConfiguration

    public class Configuration

extends Object
implements Serializable, SourceResolver, NotationSet

This class holds details of user-selected configuration options for a set of transformations and/or queries. When running XSLT, the preferred way of setting configuration options is via the JAXP TransformerFactory interface, but the Configuration object provides a finer level of control. As yet there is no standard API for XQuery, so the only way of setting Configuration information is to use the methods on this class directly.

As well as holding configuration settings, this class acts as a factory for classes providing service in particular areas: error handling, URI resolution, and the like. Some of these services are chosen on the basis of the current platform (Java or .NET), some vary depending whether the environment is schema-aware or not.

The `Configuration` provides access to a `NamePool` which is used to manage all the names used in stylesheets, queries, schemas, and source and documents: the NamePool allocates integer codes to these names allowing efficient storage and comparison. Normally there will be a one-to-one relationship between a `NamePool` and a `Configuration`. It is possible, however, for several `Configuration` objects to share the same `NamePool`. Until Saxon 8.9, by default all `Configuration` objects shared a single `NamePool` unless configured otherwise; this changed in 8.9 so that the default is to allocate a new `NamePool` for each `Configuration`.

The `Configuration` establishes the scope within which node identity is managed. Every document belongs to a `Configuration`, and every node has a distinct identity within that `Configuration`. In consequence, it is not possible for any query or transformation to manipulate multiple documents unless they all belong to the same `Configuration`.

Saxon-EE has a subclass of the `Configuration` class which provides the additional services needed for schema-aware processing. The `EnterpriseConfiguration` also holds a cache of loaded schema components used for compiling schema-aware transformations and queries, and for validating instance documents.

Since Saxon 8.4, the JavaDoc documentation for Saxon attempts to identify interfaces that are considered stable, and will only be changed in a backwards-incompatible way if there is an overriding reason to do so. These interfaces and methods are labelled with the JavaDoc "since" tag. The value 8.n indicates a method in this category that was introduced in Saxon version 8.n: or in the case of 8.4, that was present in Saxon 8.4 and possibly in earlier releases. (In some cases, these methods have been unchanged for a long time.) Methods without a "since" tag, although public, are provided for internal use or for use by advanced users, and are subject to change from one release to the next. The presence of a "since" tag on a class or interface indicates that there are one or more methods in the class that are considered stable; it does not mean that all methods are stable.

Since:
  8.4
See Also:
  Serialized Form

Nested Class Summary
`static class` | `Configuration.LicenseFeature` This class contains constants representing features of the software that may or may not be licensed.

Field Summary
`static Class<Configuration>` | `configurationClass`
`static int` | `DO_NOT_RECOVER` Constant indicating that when a recoverable error occurs, the processor should not attempt to take the defined recovery action, but should terminate with an error.
`static int` | `JAVA_APPLICATION` Constant indicating that the host language is Java: that is, this is a free-standing Java application with no XSLT or XQuery content
`protected int` | `optimizationLevel`
`protected Optimizer` | `optimizer`
`static int` | `RECOVER_SILENTLY` Constant indicating that the processor should take the recovery action when a recoverable error occurs, with no warning message.
`static int` | `RECOVER_WITH_WARNINGS` Constant indicating that the processor should produce a warning when a recoverable error occurs, and should then take the recovery action and continue.
`static String` | `softwareEdition`
`protected VendorFunctionLibrary` | `vendorFunctionLibrary`
`static int` | `XML_SCHEMA` Constant indicating that the "host language" is XML Schema
`static int` | `XML10` Constant indicating the XML Version 1.0
`static int` | `XML11` Constant indicating the XML Version 1.1
`static int` | `XPATH` Constant indicating that the host language is XPATH itself - that is, a free-standing XPath environment
`static int` | `XQUERY` Constant indicating that the host language is XQuery
`static int` | `XSD10` Language versions for XML Schema
`static int` | `XSD11`
`protected int` | `xsdVersion`
`static int` | `XSLT` Constant indicating that the host language is XSLT

Constructor Summary
`Configuration()` Create a non-schema-aware configuration object with default settings for all options.

Method Summary
`void` | `addExtensionBinders(FunctionLibraryList list)` Add the registered extension binders to a function library.
`void` | `addSchemaForBuiltInNamespace(String namespace)` Add a built-in schema for a given namespace.
`void` | `addSchemaSource(Source schemaSource)` Load a schema, which will be available for use by all subsequent operations using this Configuration.
`void` | `addSchemaSource(Source schemaSource, ErrorListener errorListener)` Load a schema, which will be available for use by all subsequent operations using this EnterpriseConfiguration.
`DocumentInfo` | `buildDocument(Source source)` Build a document tree, using options set on this Configuration and on the supplied source object.
`DocumentInfo` | `buildDocument(Source source, ParseOptions parseOptions)` Build a document, using specified options for parsing and building.
`void` | `checkTypeDerivationIsOK(SchemaType derived, SchemaType base, int block)` Check that a type is validly derived from another type, following the rules for the Schema Component Constraint "Is Type Derivation OK (Simple)" (3.14.6) or "Is Type Derivation OK (Complex)" (3.4.6) as appropriate.
`void` | `clearSchemaCache()` Remove all schema components that have been loaded into this Configuration.
`void` | `displayLicenseMessage()` Display a message about the license status
`void` | `exportComponents(Receiver out)` Export a precompiled Schema Component Model containing all the components (except built-in components) that have been loaded into this Processor.
`Receiver` | `getAnnotationStripper(Receiver destination)` Add to a pipeline a receiver that strips all type annotations.
`SchemaDeclaration` | `getAttributeDeclaration(int fingerprint)` Get a global attribute declaration.
`CharacterSetFactory` | `getCharacterSetFactory()` Get the CharacterSetFactory.
`Class` | `getClass(String className, boolean tracing, ClassLoader classLoader)` Load a class using the class name provided.
`CollationMap` | `getCollationMap()` Get the collation map, which can be used to register named collations (and a default collation) at the Configuration level.
`CollationURIResolver` | `getCollationURIResolver()` Get the collation URI resolver associated with this configuration.
`CollectionURIResolver` | `getCollectionURIResolver()` Get the collection URI resolver associated with this configuration.
`static Configuration` | `getConfiguration(XPathContext context)` Get the configuration, given the context.
`Object` | `getConfigurationProperty(String name)` Get a property of the configuration
`XPathContext` | `getConversionContext()` Get an XPathContext object with sufficient capability to perform comparisons and conversions
`ConversionRules` | `getConversionRules()` Get the conversion rules used to convert between atomic types.
`Debugger` | `getDebugger()` Get the debugger in use.
`String` | `getDefaultCollection()` Get the URI of the default collection.
`String` | `getDefaultCountry()` Get the default country to be used for number and date formatting when no country is specified.
`String` | `getDefaultLanguage()` Get the default language.
`Properties` | `getDefaultSerializationProperties()` Get the default serialization properties
`StaticQueryContext` | `getDefaultStaticQueryContext()` Get the default options for XQuery compilation
`CompilerInfo` | `getDefaultXsltCompilerInfo()` Get the default options for XSLT compilation
`DocumentNumberAllocator` | `getDocumentNumberAllocator()` Get the document number allocator.
`Receiver` | `getDocumentValidator(Receiver receiver, String systemId, int validationMode, int stripSpace, SchemaType schemaType, int topLevelElementName)` Get a document-level validator to add to a Receiver pipeline.
`int` | `getDOMLevel()` Get the level of DOM interface to be used
`DynamicLoader` | `getDynamicLoader()` Get the DynamicLoader used by this Configuration.
`String` | `getEditionCode()` Get the edition code identifying this configuration: "HE", "PE" or "EE"
`SchemaDeclaration` | `getElementDeclaration(int fingerprint)` Get a global element declaration.
`SequenceReceiver` | `getElementValidator(SequenceReceiver receiver, int nameCode, int locationId, SchemaType schemaType, int validation)` Get a Receiver that can be used to validate an element, and that passes the validated element on to a target receiver.
`ErrorListener` | `getErrorListener()` Get the ErrorListener used in this configuration.
`Iterator` | `getExtensionsOfType(SchemaType type)` Get the set of complex types that have been defined as extensions of a given type.
`ExternalObjectModel` | `getExternalObjectModel(Class nodeClass)` Get the external object model that recognizes a particular class of node, if available
`ExternalObjectModel` | `getExternalObjectModel(String uri)` Get the external object model with a given URI, if registered
`List<ExternalObjectModel>` | `getExternalObjectModels()` Get all the registered external object models.
`protected ExternalObjectType` | `getExternalObjectType(int fingerprint)` Get the external object type corresponding to a fingerprint if it is indeed an external object type, otherwise return null
`DocumentPool` | `getGlobalDocumentPool()` Get the global document pool.
`int` | `getHostLanguage()` Get the host language used in this configuration.
`Set` | `getImportedNamespaces()` Get the set of namespaces of imported schemas
`Object` | `getInstance(String className, ClassLoader classLoader)` Instantiate a class using the class name provided.
`IntegratedFunctionLibrary` | `getIntegratedFunctionLibrary()` Get the IntegratedFunction library containing integrated extension functions
`static Locale` | `getLocale(String lang)` Get a locale given a language code in XML format.
`LocalizerFactory` | `getLocalizerFactory()` Get the localizer factory in use
`String` | `getMessageEmitterClass()` Get the name of the class that will be instantiated to create a MessageEmitter, to process the output of xsl:message instructions in XSLT.
`ModuleURIResolver` | `getModuleURIResolver()` Get the user-defined ModuleURIResolver for resolving URIs used in "import module" declarations in the XQuery prolog; returns null if none has been explicitly set.
`NameChecker` | `getNameChecker()` Get a class that can be used to check names against the selected XML version
`NamePool` | `getNamePool()` Get the target namepool to be used for stylesheets/queries and for source documents.
`Optimizer` | `getOptimizer()` Factory method to get an Optimizer.
`OutputURIResolver` | `getOutputURIResolver()` Get the OutputURIResolver that will be used to resolve URIs used in the href attribute of the xsl:result-document instruction.
`ParseOptions` | `getParseOptions()` Get the parsing and document building options defined in this configuration
`static Platform` | `getPlatform()` Get the Platform to be used for platform-dependent methods
`Object` | `getProcessor()` Get the Processor object that created this Configuration in the relevant API.
`String` | `getProductTitle()` Get a message used to identify this product when a transformation is run using the -t option
`int` | `getRecoveryPolicy()` Determine how recoverable run-time errors are to be handled.
`SchemaType` | `getSchemaType(int fingerprint)` Get the top-level schema type definition with a given fingerprint.
`SchemaURIResolver` | `getSchemaURIResolver()` Get the user-defined SchemaURIResolver for resolving URIs used in "import schema" declarations; if none has been explicitly set, returns null.
`int` | `getSchemaValidationMode()` Ask whether source documents (supplied as a StreamSource or SAXSource) should be subjected to schema validation, and if so, in what validation mode
`SerializerFactory` | `getSerializerFactory()` Get the SerializerFactory.
`XMLReader` | `getSourceParser()` Get a parser for source documents.
`String` | `getSourceParserClass()` Get the name of the class that will be instantiated to create an XML parser for parsing source documents (for example, documents loaded using the document() or doc() functions).
`SourceResolver` | `getSourceResolver()` Get the current SourceResolver.
`PrintStream` | `getStandardErrorOutput()` Get the standard error output to be used in all cases where no more specific destination is defined.
`ModuleURIResolver` | `getStandardModuleURIResolver()` Get the standard system-defined ModuleURIResolver for resolving URIs used in "import module" declarations in the XQuery prolog.
`int` | `getStripsWhiteSpace()` Set which kinds of whitespace-only text node should be stripped.
`XMLReader` | `getStyleParser()` Get the parser for stylesheet documents.
`String` | `getStyleParserClass()` Get the name of the class that will be instantiated to create an XML parser for parsing stylesheet modules.
`StandardURIResolver` | `getSystemURIResolver()` Get the system-defined URI Resolver.
`TraceListener` | `getTraceListener()` Get the TraceListener used for run-time tracing of instruction execution.
`String` | `getTraceListenerClass()` Get the name of the trace listener class to be used for run-time tracing of instruction execution.
`int` | `getTreeModel()` Get the Tree Model used by this Configuration.
`TypeHierarchy` | `getTypeHierarchy()` Get the TypeHierarchy: a cache holding type information
`URIResolver` | `getURIResolver()` Get the URIResolver used in this configuration
`VendorFunctionLibrary` | `getVendorFunctionLibrary()` Get the FunctionLibrary used to bind calls on Saxon-defined extension functions.
`int` | `getXMLVersion()` Get the XML version to be used by default for validating characters and names
`int` | `getXsdVersion()` Get the version of XML Schema to be used
`void` | `importComponents(Source source)` Import a precompiled Schema Component Model from a given Source.
`protected void` | `init()`
`protected Object` | `instantiateClassName(String propertyName, Object value, Class requiredClass)`
`boolean` | `isAllowExternalFunctions()` Determine whether calls to external Java functions are permitted.
`boolean` | `isCompatible(Configuration other)` Determine whether two Configurations are compatible.
`boolean` | `isCompileWithTracing()` Determine whether compile-time generation of trace code was requested
`boolean` | `isDeclaredNotation(String uri, String local)` Ask whether a given notation has been declared in the schema
`boolean` | `isExpandAttributeDefaults()` Determine whether elements and attributes that have a fixed or default value are to be expanded.
`boolean` | `isLazyConstructionMode()` Determine whether lazy construction mode is on or off.
`boolean` | `isLicensed()` Determine if the functionality available in this configuration is licensed.
`boolean` | `isLicensedFeature(int feature)` Determine if a particular feature is licensed.
`boolean` | `isLineNumbering()` Determine whether source documents will maintain line numbers, for the benefit of the saxon:line-number() extension function as well as run-time tracing.
`boolean` | `isMultiThreading()` Determine whether multithreading optimizations are allowed
`boolean` | `isOptimizerTracing()` Test whether optimizer tracing is on or off
`boolean` | `isRetainDTDAttributeTypes()` Ask whether attribute types obtained from a DTD are to be used to set type annotations on the resulting nodes
`boolean` | `isSchemaAvailable(String targetNamespace)` Determine whether the Configuration contains a cached schema for a given target namespace
`boolean` | `isSchemaAware(int language)` Deprecated. since 9.2: use isLicensedFeature() instead
`boolean` | `isStripsAllWhiteSpace()` Determine whether whitespace-only text nodes are to be stripped unconditionally from source documents.
`boolean` | `isTiming()` Determine whether brief progress messages and timing information will be output to System.err.
`boolean` | `isTraceExternalFunctions()` Determine whether calls on external functions are to be traced for diagnostic purposes.
`boolean` | `isValidation()` Determine whether the XML parser for source documents will be asked to perform validation of source documents
`boolean` | `isValidationWarnings()` Determine whether schema validation failures on result documents are to be treated as fatal errors or as warnings.
`boolean` | `isVersionWarning()` Determine whether a warning is to be output when running against a stylesheet labelled as version="1.0".
`boolean` | `isXIncludeAware()` Test whether or not source documents (including stylesheets and schemas) are to have XInclude processing applied to them, or not
`void` | `loadSchema(String absoluteURI)` Simple interface to load a schema document
`Value` | `makeClosure(Expression expression, int ref, XPathContext context)` Make a Closure, given the expected reference count
`ProxyReceiver` | `makeDocumentProjector(PathMap.PathMapRoot map)` Create a document projector for a given path map.
`Receiver` | `makeEmitter(String clarkName, Properties props)` Load a named output emitter or SAX2 ContentHandler and check it is OK.
`static Configuration` | `makeLicensedConfiguration(ClassLoader classLoader, String className)` Static method to instantiate a professional or enterprise configuration.
`Numberer` | `makeNumberer(String language, String country)` Load a Numberer class for a given language and check it is OK.
`XMLReader` | `makeParser(String className)` Create a new SAX XMLReader object using the class name provided.
`PipelineConfiguration` | `makePipelineConfiguration()` Make a PipelineConfiguration from the properties of this Configuration
`static Configuration` | `makeSchemaAwareConfiguration(ClassLoader loader, String className)` Deprecated. since 9.2. Use `makeLicensedConfiguration(java.lang.ClassLoader, java.lang.String)` instead.
`ValueRepresentation` | `makeSequenceExtent(Expression expression, int ref, XPathContext context)` Make a SequenceExtent, given the expected reference count
`SlotManager` | `makeSlotManager()` Factory method to create a SlotManager.
`Receiver` | `makeStreamingTransformer(XPathContext context, Mode mode)` Create a streaming transformer
`StyleNodeFactory` | `makeStyleNodeFactory()` Factory method to get the StyleNodeFactory, used for constructing elements in a stylesheet document
`TraceListener` | `makeTraceListener()` Get or create the TraceListener used for run-time tracing of instruction execution.
`TraceListener` | `makeTraceListener(String className)` Create an instance of a TraceListener with a specified class name
`NodeInfo` | `makeUnconstructedDocument(DocumentInstr instr, XPathContext context)` Make an "unconstructed" (that is, lazily-constructed) document node
`NodeInfo` | `makeUnconstructedElement(ElementCreator instr, XPathContext context)` Make an "unconstructed" (that is, lazily-constructed) element node
`URIResolver` | `makeURIResolver(String className)` Create an instance of a URIResolver with a specified class name.
`protected void` | `needEnterpriseEdition()` Throw an error indicating that a request cannot be satisfied because it requires the schema-aware edition of Saxon
`static Configuration` | `newConfiguration()` Factory method to create a Configuration, of the class specified in the edition.properties properties file: that is, the type of Configuration appropriate to the edition of the software being used.
`ExpressionParser` | `newExpressionParser(String language, boolean updating, DecimalValue languageVersion)` Make an expression Parser for a specified version of XPath or XQuery
`PendingUpdateList` | `newPendingUpdateList()` Get a new Pending Update List
`StaticQueryContext` | `newStaticQueryContext()` Get a new StaticQueryContext (which is also the factory class for creating a query parser)
`UserFunction` | `newUserFunction(boolean memoFunction)` Make a UserFunction object.
`static Configuration` | `readConfiguration(Source source)` Factory method to construct a Configuration object by reading a configuration file.
`String` | `readInlineSchema(NodeInfo root, String expected, ErrorListener errorListener)` Read an inline schema from a stylesheet.
`void` | `readMultipleSchemas(PipelineConfiguration pipe, String baseURI, Collection schemaLocations, String expected)` Read schemas from a list of schema locations.
`String` | `readSchema(PipelineConfiguration pipe, String baseURI, String schemaLocation, String expected)` Read a schema from a given schema location This method is intended for internal use.
`void` | `registerExtensionFunction(ExtensionFunctionDefinition function)` Register an extension function that is to be made available in all queries, stylesheets, and XPath expressions compiled under thie Configuration.
`void` | `registerExternalObjectModel(ExternalObjectModel model)` Register an external object model with this Configuration.
`void` | `reportFatalError(XPathException err)` Report a fatal error
`protected boolean` | `requireBoolean(String propertyName, Object value)` Validate a property value where the required type is boolean
`protected String` | `requireString(String propertyName, Object value)`
`Source` | `resolveSource(Source source, Configuration config)` Resolve a Source.
`void` | `reuseSourceParser(XMLReader parser)` Return a source parser to the pool, for reuse
`void` | `reuseStyleParser(XMLReader parser)` Return a stylesheet (or schema) parser to the pool, for reuse
`void` | `sealNamespace(String namespace)` Mark a schema namespace as being sealed.
`void` | `setAllowExternalFunctions(boolean allowExternalFunctions)` Determine whether calls to external Java functions are permitted.
`void` | `setCollationURIResolver(CollationURIResolver resolver)` Set a CollationURIResolver to be used to resolve collation URIs (that is, to take a URI identifying a collation, and return the corresponding collation).
`void` | `setCollectionURIResolver(CollectionURIResolver resolver)` Set a CollectionURIResolver to be used to resolve collection URIs (that is, the URI supplied in a call to the collection() function).
`void` | `setCompileWithTracing(boolean trace)` Request compile-time generation of trace code (or not)
`void` | `setConfigurationProperty(String name, Object value)` Set a property of the configuration.
`void` | `setConversionRules(ConversionRules rules)` Set the conversion rules to be used to convert between atomic types.
`void` | `setDebugger(Debugger debugger)` Set the debugger to be used.
`void` | `setDefaultCollection(String uri)` Set the default collection.
`void` | `setDefaultCountry(String country)` Set the default country to be used for number and date formatting when no country is specified.
`void` | `setDefaultLanguage(String language)` Set the default language to be used for number and date formatting when no language is specified.
`void` | `setDefaultSerializationProperties(Properties props)` Set the default serialization properties
`void` | `setDocumentNumberAllocator(DocumentNumberAllocator allocator)` Set the document number allocator.
`void` | `setDOMLevel(int level)` Set the level of DOM interface to be used
`void` | `setDynamicLoader(DynamicLoader dynamicLoader)` Set the DynamicLoader to be used.
`void` | `setErrorListener(ErrorListener listener)` Set the ErrorListener to be used in this configuration.
`void` | `setExpandAttributeDefaults(boolean expand)` Indicate whether attributes that have a fixed or default value are to be expanded when generating a final result tree.
`void` | `setHostLanguage(int hostLanguage)` Set the host language used in this configuration.
`void` | `setLazyConstructionMode(boolean lazy)` Set lazy construction mode on or off.
`void` | `setLineNumbering(boolean lineNumbering)` Determine whether source documents will maintain line numbers, for the benefit of the saxon:line-number() extension function as well as run-time tracing.
`void` | `setLocalizerFactory(LocalizerFactory factory)` Set the localizer factory to be used
`void` | `setMessageEmitterClass(String messageReceiverClassName)` Set the name of the class that will be instantiated to to process the output of xsl:message instructions in XSLT.
`void` | `setModuleURIResolver(ModuleURIResolver resolver)` Set a user-defined ModuleURIResolver for resolving URIs used in "import module" declarations in an XQuery prolog.
`void` | `setModuleURIResolver(String className)` Create and register an instance of a ModuleURIResolver with a specified class name.
`void` | `setMultiThreading(boolean multithreading)` Set whether multithreading optimizations are allowed.
`void` | `setNamePool(NamePool targetNamePool)` Set the NamePool to be used for stylesheets/queries and for source documents.
`void` | `setOptimizerTracing(boolean trace)` Set optimizer tracing on or off
`void` | `setOutputURIResolver(OutputURIResolver outputURIResolver)` Set the OutputURIResolver that will be used to resolve URIs used in the href attribute of the xsl:result-document instruction.
`void` | `setParameterizedURIResolver()` Set the URIResolver to a URI resolver that allows query parameters after the URI, and in the case of Saxon-EE, that inteprets the file extension .ptree
`void` | `setProcessor(Object processor)` Save the Processor object that owns this Configuration in the relevant API.
`void` | `setRecoveryPolicy(int recoveryPolicy)` Determine how recoverable run-time errors are to be handled.
`void` | `setRetainDTDAttributeTypes(boolean useTypes)` Deprecated. since 9.2 This feature was dropped from the final XDM specification and will be dropped in a future Saxon release. The facility is supported only in Saxon-EE. Use an XSD schema to define the attribute types instead.
`void` | `setSchemaURIResolver(SchemaURIResolver resolver)` Set a user-defined SchemaURIResolver for resolving URIs used in "import schema" declarations.
`void` | `setSchemaValidationMode(int validationMode)` Say whether source documents (supplied as a StreamSource or SAXSource) should be subjected to schema validation, and if so, in what validation mode.
`void` | `setSerializerFactory(SerializerFactory factory)` Set a custom SerializerFactory.
`void` | `setSourceParserClass(String sourceParserClass)` Set the name of the class that will be instantiated to create an XML parser for parsing source documents (for example, documents loaded using the document() or doc() functions).
`void` | `setSourceResolver(SourceResolver resolver)` Supply a SourceResolver.
`void` | `setStandardErrorOutput(PrintStream out)` Set the standard error output to be used in all cases where no more specific destination is defined.
`void` | `setStripsAllWhiteSpace(boolean stripsAllWhiteSpace)` Determine whether whitespace-only text nodes are to be stripped unconditionally from source documents.
`void` | `setStripsWhiteSpace(int kind)` Set which kinds of whitespace-only text node should be stripped.
`void` | `setStyleParserClass(String parser)` Set the name of the class that will be instantiated to create an XML parser for parsing stylesheet modules.
`void` | `setTiming(boolean timing)` Determine whether brief progress messages and timing information will be output to System.err.
`void` | `setTraceExternalFunctions(boolean traceExternalFunctions)` Determine whether calls on external functions are to be traced for diagnostic purposes.
`void` | `setTraceListener(TraceListener traceListener)` Set the TraceListener to be used for run-time tracing of instruction execution.
`void` | `setTraceListenerClass(String className)` Set the name of the trace listener class to be used for run-time tracing of instruction execution.
`void` | `setTreeModel(int treeModel)` Set the Tree Model used by this Configuration.
`void` | `setURIResolver(URIResolver resolver)` Set the URIResolver to be used in this configuration.
`void` | `setValidation(boolean validation)` Determine whether the XML parser for source documents will be asked to perform DTD validation of source documents
`void` | `setValidationWarnings(boolean warn)` Indicate whether schema validation failures on result documents are to be treated as fatal errors or as warnings.
`void` | `setVersionWarning(boolean warn)` Determine whether a warning is to be output when the version attribute of the stylesheet does not match the XSLT processor version.
`void` | `setXIncludeAware(boolean state)` Set whether or not source documents (including stylesheets and schemas) are have XInclude processing applied to them, or not.
`void` | `setXMLVersion(int version)` Set the XML version to be used by default for validating characters and names.
`NodeInfo` | `unravel(Source source)` Get a NodeInfo corresponding to a DOM or other external Node, either by wrapping or unwrapping the external Node.
`boolean` | `useTypedValueCache()` Ask whether the typed value cache should be used for the TinyTree
`int` | `validateAttribute(int nameCode, CharSequence value, int validation)` Validate an attribute value.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### configurationClass

    public static final Class<Configuration> configurationClass

### softwareEdition

    public static final String softwareEdition

### xsdVersion

    protected int xsdVersion

### vendorFunctionLibrary

    protected VendorFunctionLibrary vendorFunctionLibrary

### optimizer

    protected Optimizer optimizer

### optimizationLevel

    protected int optimizationLevel

### RECOVER_SILENTLY

    public static final int RECOVER_SILENTLY

  Constant indicating that the processor should take the recovery action when a recoverable error occurs, with no warning message.

  See Also:
    Constant Field Values

### RECOVER_WITH_WARNINGS

    public static final int RECOVER_WITH_WARNINGS

  Constant indicating that the processor should produce a warning when a recoverable error occurs, and should then take the recovery action and continue.

  See Also:
    Constant Field Values

### DO_NOT_RECOVER

    public static final int DO_NOT_RECOVER

  Constant indicating that when a recoverable error occurs, the processor should not attempt to take the defined recovery action, but should terminate with an error.

  See Also:
    Constant Field Values

### XML10

    public static final int XML10

  Constant indicating the XML Version 1.0

  See Also:
    Constant Field Values

### XML11

    public static final int XML11

  Constant indicating the XML Version 1.1

  See Also:
    Constant Field Values

### XSLT

    public static final int XSLT

  Constant indicating that the host language is XSLT

  See Also:
    Constant Field Values

### XQUERY

    public static final int XQUERY

  Constant indicating that the host language is XQuery

  See Also:
    Constant Field Values

### XML_SCHEMA

    public static final int XML_SCHEMA

  Constant indicating that the "host language" is XML Schema

  See Also:
    Constant Field Values

### JAVA_APPLICATION

    public static final int JAVA_APPLICATION

  Constant indicating that the host language is Java: that is, this is a free-standing Java application with no XSLT or XQuery content

  See Also:
    Constant Field Values

### XPATH

    public static final int XPATH

  Constant indicating that the host language is XPATH itself - that is, a free-standing XPath environment

  See Also:
    Constant Field Values

### XSD10

    public static final int XSD10

  Language versions for XML Schema

  See Also:
    Constant Field Values

### XSD11

    public static final int XSD11

See Also:
  Constant Field Values

Constructor Detail

### Configuration

    public Configuration()

  Create a non-schema-aware configuration object with default settings for all options.

  Since:
    8.4

Method Detail

### readConfiguration

    public static Configuration readConfiguration(Source source)
                                           throws XPathException

  Factory method to construct a Configuration object by reading a configuration file. Requires Saxon-PE or Saxon-EE

  Parameters:
    `source` - Source object containing the configuration file
  Returns:
    the resulting Configuration
  Throws:
    `XPathException`

### newConfiguration

    public static Configuration newConfiguration()

  Factory method to create a Configuration, of the class specified in the edition.properties properties file: that is, the type of Configuration appropriate to the edition of the software being used. This method does not check that the Configuration is licensed.

  Returns:
    a Configuration object of the class appropriate to the Saxon edition in use.
  Since:
    9.2

### init

    protected void init()

### makeLicensedConfiguration

    public static Configuration makeLicensedConfiguration(ClassLoader classLoader,
                                                          String className)
                                                   throws RuntimeException

  Static method to instantiate a professional or enterprise configuration.

  This method fails if the specified configuration class cannot be loaded, but it does not check whether there is a license available.

  Parameters:
    `classLoader` - - the class loader to be used. If null, the context class loader for the current thread is used.
    `className` - - the name of the configuration class. Defaults to "com.saxonica.config.ProfessionalConfiguration" if null is supplied. This allows an assembly qualified name to be supplied under .NET. The class, once instantiated, must be an instance of Configuration.
  Returns:
    the new ProfessionalConfiguration or EnterpriseConfiguration
  Throws:
    `RuntimeException` - if the required Saxon edition cannot be loaded
  Since:
    9.2 (renamed from makeSchemaAwareConfiguration)

### makeSchemaAwareConfiguration

    public static Configuration makeSchemaAwareConfiguration(ClassLoader loader,
                                                             String className)

  Deprecated. since 9.2. Use `makeLicensedConfiguration(java.lang.ClassLoader, java.lang.String)` instead.

  Make an enterprise configuration

  Parameters:
    `loader` - the class loader (or null)
    `className` - the name of the configuration class (or null)

### getEditionCode

    public String getEditionCode()

  Get the edition code identifying this configuration: "HE", "PE" or "EE"

### setProcessor

    public void setProcessor(Object processor)

  Save the Processor object that owns this Configuration in the relevant API.

  Parameters:
    `processor` - This can be any object, but it is actually used to hold one of the following:
    - When using the Java s9api interface, the `net.sf.saxon.s9api.Processor`
    - When using the .NET interface, the `Saxon.Api.Processor`
    - When using the JAXP transformation interface, the JAXP `TransformerFactory`
    - When using the JAXP XPath interface, the JAXP `XPathFactory`
    - When using the JAXP Schema interface, the JAXP `SchemaFactory`
    - When using XQJ, the `XQDataSource`
  Since:
    9.2

### getProcessor

    public Object getProcessor()

  Get the Processor object that created this Configuration in the relevant API.

  The main purpose of this interface is to allow extension functions called from a stylesheet or query to get access to the originating processor. This is particularly useful when methods are static as there is then limited scope for passing data from the calling application to the code of the extension function.

  Returns:
    the processor that was supplied to the `setProcessor(Object)` method, or null if this method has not been called. In practice this property is used to hold one of the following:
    - When using the Java s9api interface, the `net.sf.saxon.s9api.Processor`
    - When using the .NET interface, the `Saxon.Api.Processor`
    - When using the JAXP transformation interface, the JAXP `TransformerFactory`
    - When using the JAXP XPath interface, the JAXP `XPathFactory`
    - When using the JAXP Schema interface, the JAXP `SchemaFactory`
    - When using XQJ, the `XQDataSource`
  Since:
    9.2

### getProductTitle

    public String getProductTitle()

  Get a message used to identify this product when a transformation is run using the -t option

  Returns:
    A string containing both the product name and the product version
  Since:
    8.4

### isLicensed

    public boolean isLicensed()

  Determine if the functionality available in this configuration is licensed.

  Returns:
    false for Saxon-HE, since the method is used to check for functionality that is not available in Saxon-HE
  Since:
    9.2. Semantics changed in 9.3.

### isLicensedFeature

    public boolean isLicensedFeature(int feature)

  Determine if a particular feature is licensed.

  Parameters:
    `feature` - the feature in question, identified by a constant in class `Configuration.LicenseFeature`

### isSchemaAware

    public boolean isSchemaAware(int language)

  Deprecated. since 9.2: use isLicensedFeature() instead

  Determine if the configuration is schema-aware, for the given host language

  Parameters:
    `language` - the required host language: XSLT, XQUERY, or XML_SCHEMA
  Returns:
    true if the configuration is schema-aware
  Since:
    8.4

### displayLicenseMessage

    public void displayLicenseMessage()

  Display a message about the license status

### getHostLanguage

    public int getHostLanguage()

  Get the host language used in this configuration. The typical values are XSLT and XQUERY. The values XML_SCHEMA and JAVA_APPLICATION may also be encountered.

  This method is problematic because it is possible to run multiple transformations or queries within the same configuration. The method is therefore best avoided. Instead, use `Container.getHostLanguage()`. Internally its only use is in deciding (in Saxon-EE only) which error listener to use by default at compile time, and since the standard XSLT and XQuery listeners have no differences when used for static errors, the choice is immaterial.

  Returns:
    Configuration.XSLT or Configuration.XQUERY

### setHostLanguage

    public void setHostLanguage(int hostLanguage)

  Set the host language used in this configuration. The possible values are XSLT and XQUERY.

  Parameters:
    `hostLanguage` - Configuration.XSLT or Configuration.XQUERY

### getPlatform

    public static Platform getPlatform()

  Get the Platform to be used for platform-dependent methods

  Returns:
    the platform to be used

### setDynamicLoader

    public void setDynamicLoader(DynamicLoader dynamicLoader)

  Set the DynamicLoader to be used. By default an instance of `DynamicLoader` is used for all dynamic loading of Java classes. This method allows the actions of the standard DynamicLoader to be overridden

  Parameters:
    `dynamicLoader` - the DynamicLoader to be used by this Configuration

### getDynamicLoader

    public DynamicLoader getDynamicLoader()

  Get the DynamicLoader used by this Configuration. By default the standard system-supplied dynamic loader is returned.

  Returns:
    the DynamicLoader in use - either a user-supplied DynamicLoader, or the standard one supplied by the system.

### getClass

    public Class getClass(String className,
                          boolean tracing,
                          ClassLoader classLoader)
                   throws XPathException

  Load a class using the class name provided. Note that the method does not check that the object is of the right class.

  This method is intended for internal use only. The call is delegated to the `DynamicLoader`, which may be overridden by a user-defined `DynamicLoader`.

  Parameters:
    `className` - A string containing the name of the class, for example "com.microstar.sax.LarkDriver"
    `tracing` - true if diagnostic tracing is required
    `classLoader` - The ClassLoader to be used to load the class, or null to use the ClassLoader selected by the DynamicLoader.
  Returns:
    an instance of the class named, or null if it is not loadable.
  Throws:
    `XPathException` - if the class cannot be loaded.

### getInstance

    public Object getInstance(String className,
                              ClassLoader classLoader)
                       throws XPathException

  Instantiate a class using the class name provided. Note that the method does not check that the object is of the right class.

  This method is intended for internal use only. The call is delegated to the `DynamicLoader`, which may be overridden by a user-defined `DynamicLoader`.

  Diagnostic output is produced if the option "isTiming" is set (corresponding to the -t option on the command line).

  Parameters:
    `className` - A string containing the name of the class, for example "com.microstar.sax.LarkDriver"
    `classLoader` - The ClassLoader to be used to load the class, or null to use the ClassLoader selected by the DynamicLoader.
  Returns:
    an instance of the class named, or null if it is not loadable.
  Throws:
    `XPathException` - if the class cannot be loaded.

### getURIResolver

    public URIResolver getURIResolver()

  Get the URIResolver used in this configuration

  Returns:
    the URIResolver. If no URIResolver has been set explicitly, the default URIResolver is used.
  Since:
    8.4

### setURIResolver

    public void setURIResolver(URIResolver resolver)

  Set the URIResolver to be used in this configuration. This will be used to resolve the URIs used statically (e.g. by xsl:include) and also the URIs used dynamically by functions such as document() and doc(). Note that the URIResolver does not resolve the URI in the sense of RFC 2396 (which is also the sense in which the resolve-uri() function uses the term): rather it dereferences an absolute URI to obtain an actual resource, which is returned as a Source object.

  Parameters:
    `resolver` - The URIResolver to be used.
  Since:
    8.4

### setParameterizedURIResolver

    public void setParameterizedURIResolver()

  Set the URIResolver to a URI resolver that allows query parameters after the URI, and in the case of Saxon-EE, that inteprets the file extension .ptree

### getSystemURIResolver

    public StandardURIResolver getSystemURIResolver()

  Get the system-defined URI Resolver. This is used when the user-defined URI resolver returns null as the result of the resolve() method

  Returns:
    the system-defined URI resolver

### makeURIResolver

    public URIResolver makeURIResolver(String className)
                                throws TransformerException

  Create an instance of a URIResolver with a specified class name. Note that this method does not register the URIResolver with this Configuration.

  Parameters:
    `className` - The fully-qualified name of the URIResolver class
  Returns:
    The newly created URIResolver
  Throws:
    `TransformerException` - if the requested class does not implement the javax.xml.transform.URIResolver interface

### getErrorListener

    public ErrorListener getErrorListener()

  Get the ErrorListener used in this configuration. If no ErrorListener has been supplied explicitly, the default ErrorListener is used.

  Returns:
    the ErrorListener.
  Since:
    8.4

### setErrorListener

    public void setErrorListener(ErrorListener listener)

  Set the ErrorListener to be used in this configuration. The ErrorListener is informed of all static and dynamic errors detected, and can decide whether run-time warnings are to be treated as fatal.

  Parameters:
    `listener` - the ErrorListener to be used
  Since:
    8.4

### reportFatalError

    public void reportFatalError(XPathException err)

  Report a fatal error

  Parameters:
    `err` - the exception to be reported

### setStandardErrorOutput

    public void setStandardErrorOutput(PrintStream out)

  Set the standard error output to be used in all cases where no more specific destination is defined. This defaults to System.err.

  Parameters:
    `out` - the stream to be used for error output where no more specific destination has been supplied
  Since:
    9.3

### getStandardErrorOutput

    public PrintStream getStandardErrorOutput()

  Get the standard error output to be used in all cases where no more specific destination is defined. This defaults to System.err.

  Returns:
    the stream to be used for error output where no more specific destination has been supplied
  Since:
    9.3

### setMultiThreading

    public void setMultiThreading(boolean multithreading)

  Set whether multithreading optimizations are allowed. Note that Saxon only uses multi-threading if explicitly requested using the `saxon:threads` attribute of `xsl:for-each`. However, it can be disabled by setting this option to false.

  Parameters:
    `multithreading` - true if multithreading optimizations are allowed. Default is true for Saxon-EE, false for Saxon-HE and Saxon-PE

### isMultiThreading

    public boolean isMultiThreading()

  Determine whether multithreading optimizations are allowed

  Returns:
    true if multithreading optimizations are allowed

### setXMLVersion

    public void setXMLVersion(int version)

  Set the XML version to be used by default for validating characters and names. Note that source documents specifying xml version="1.0" or "1.1" are accepted regardless of this setting. The effect of this switch is to change the validation rules for types such as Name and NCName, to change the meaning of \i and \c in regular expressions, and to determine whether the serializer allows XML 1.1 documents to be constructed.

  Parameters:
    `version` - one of the constants XML10 or XML11
  Since:
    8.6

### getXMLVersion

    public int getXMLVersion()

  Get the XML version to be used by default for validating characters and names

  Returns:
    one of the constants `XML10` or `XML11`
  Since:
    8.6

### getParseOptions

    public ParseOptions getParseOptions()

  Get the parsing and document building options defined in this configuration

  Returns:
    the parsing and document building options. Note that any changes to tgethis ParseOptions object will be reflected back in the Configuration; if changes are to be made locally, the caller should create a copy.
  Since:
    9.2

### getNameChecker

    public NameChecker getNameChecker()

  Get a class that can be used to check names against the selected XML version

  Returns:
    a class that can be used for name checking
  Since:
    8.6

### setConversionRules

    public void setConversionRules(ConversionRules rules)

  Set the conversion rules to be used to convert between atomic types. By default, The rules depend on the versions of XML and XSD in use by the configuration.

  Parameters:
    `rules` - the conversion rules to be used
  Since:
    9.3

### getConversionRules

    public ConversionRules getConversionRules()

  Get the conversion rules used to convert between atomic types. By default, the rules depend on the versions of XML and XSD in use by the configuration

  Returns:
    the appropriate conversion rules
  Since:
    9.3

### getXsdVersion

    public int getXsdVersion()

  Get the version of XML Schema to be used

  Returns:
    `XSD10` or `XSD11`
  Since:
    9.2

### getConversionContext

    public XPathContext getConversionContext()

  Get an XPathContext object with sufficient capability to perform comparisons and conversions

  Returns:
    a dynamic context for performing conversions

### getTreeModel

    public int getTreeModel()

  Get the Tree Model used by this Configuration. This is either `Builder.LINKED_TREE`, `Builder.TINY_TREE`, or `Builder.TINY_TREE_CONDENSED`. The default is `Builder.TINY_TREE`.

  Returns:
    the selected Tree Model
  Since:
    8.4 (Condensed tinytree added in 9.2)

### setTreeModel

    public void setTreeModel(int treeModel)

  Set the Tree Model used by this Configuration. This is either `Builder.LINKED_TREE` or `Builder.TINY_TREE`, or `Builder.TINY_TREE_CONDENSED`. The default is `Builder.TINY_TREE`.

  Parameters:
    `treeModel` - the integer constant representing the selected Tree Model
  Since:
    8.4 (Condensed tinytree added in 9.2)

### useTypedValueCache

    public boolean useTypedValueCache()

  Ask whether the typed value cache should be used for the TinyTree

  Returns:
    true (the default) if the cache should be used, false otherwise

### isLineNumbering

    public boolean isLineNumbering()

  Determine whether source documents will maintain line numbers, for the benefit of the saxon:line-number() extension function as well as run-time tracing.

  Returns:
    true if line numbers are maintained in source documents
  Since:
    8.4

### setLineNumbering

    public void setLineNumbering(boolean lineNumbering)

  Determine whether source documents will maintain line numbers, for the benefit of the saxon:line-number() extension function as well as run-time tracing.

  Parameters:
    `lineNumbering` - true if line numbers are maintained in source documents
  Since:
    8.4

### setXIncludeAware

    public void setXIncludeAware(boolean state)

  Set whether or not source documents (including stylesheets and schemas) are have XInclude processing applied to them, or not. Default is false.

  Parameters:
    `state` - true if XInclude elements are to be expanded, false if not
  Since:
    8.9

### isXIncludeAware

    public boolean isXIncludeAware()

  Test whether or not source documents (including stylesheets and schemas) are to have XInclude processing applied to them, or not

  Returns:
    true if XInclude elements are to be expanded, false if not
  Since:
    8.9

### getTraceListener

    public TraceListener getTraceListener()

  Get the TraceListener used for run-time tracing of instruction execution.

  Returns:
    the TraceListener that was set using `setTraceListener(net.sf.saxon.lib.TraceListener)` if set. Otherwise, returns null.
  Since:
    8.4. Modified in 9.1.

### makeTraceListener

    public TraceListener makeTraceListener()
                                    throws XPathException

  Get or create the TraceListener used for run-time tracing of instruction execution.

  Returns:
    If a TraceListener has been set using `setTraceListener(net.sf.saxon.lib.TraceListener)`, returns that TraceListener. Otherwise, if a TraceListener class has been set using `setTraceListenerClass(String)`, returns a newly created instance of that class. Otherwise, returns null.
  Throws:
    `XPathException` - if the supplied TraceListenerClass cannot be instantiated as an instance of TraceListener
  Since:
    9.1.

### setTraceListener

    public void setTraceListener(TraceListener traceListener)

  Set the TraceListener to be used for run-time tracing of instruction execution.

  Note: this method should not be used if the Configuration is multithreading. In that situation, use `setCompileWithTracing(boolean)` to force stylesheets and queries to be compiled with trace code enabled, and use `Controller.addTraceListener(net.sf.saxon.lib.TraceListener)` to supply a TraceListener at run time.

  Parameters:
    `traceListener` - The TraceListener to be used.
  Since:
    8.4

### setTraceListenerClass

    public void setTraceListenerClass(String className)

  Set the name of the trace listener class to be used for run-time tracing of instruction execution. A new instance of this class will be created for each query or transformation that requires tracing. The class must be an instance of `TraceListener`.

  Parameters:
    `className` - the name of the trace listener class
  Throws:
    `IllegalArgumentException` - if the class cannot be instantiated or does not implement TraceListener
  Since:
    9.1

### getTraceListenerClass

    public String getTraceListenerClass()

  Get the name of the trace listener class to be used for run-time tracing of instruction execution. A new instance of this class will be created for each query or transformation that requires tracing. The class must be an instance of `TraceListener`.

  Returns:
    the name of the trace listener class, or null if no trace listener class has been nominated.
  Since:
    9.1

### isCompileWithTracing

    public boolean isCompileWithTracing()

  Determine whether compile-time generation of trace code was requested

  Returns:
    true if compile-time generation of code was requested
  Since:
    8.8

### setCompileWithTracing

    public void setCompileWithTracing(boolean trace)

  Request compile-time generation of trace code (or not)

  Parameters:
    `trace` - true if compile-time generation of trace code is required
  Since:
    8.8

### setOptimizerTracing

    public void setOptimizerTracing(boolean trace)

  Set optimizer tracing on or off

  Parameters:
    `trace` - set to true to switch optimizer tracing on, false to switch it off

### isOptimizerTracing

    public boolean isOptimizerTracing()

  Test whether optimizer tracing is on or off

  Returns:
    true if optimizer tracing is switched on

### makeTraceListener

    public TraceListener makeTraceListener(String className)
                                    throws XPathException

  Create an instance of a TraceListener with a specified class name

  Parameters:
    `className` - The fully qualified class name of the TraceListener to be constructed
  Returns:
    the newly constructed TraceListener
  Throws:
    `XPathException` - if the requested class does not implement the net.sf.saxon.trace.TraceListener interface

### registerExtensionFunction

    public void registerExtensionFunction(ExtensionFunctionDefinition function)
                                   throws XPathException

  Register an extension function that is to be made available in all queries, stylesheets, and XPath expressions compiled under thie Configuration. This method incorporates an extension function implemented as an instance of `ExtensionFunctionCall`, using an arbitrary name and namespace.

  Parameters:
    `function` - the class that implements the extension function. This must be a class that extends `ExtensionFunctionCall`, and it must have a public zero-argument constructor
  Throws:
    `XPathException` - if the class cannot be instantiated or does not extend `ExtensionFunctionCall`
  Since:
    9.2

### getIntegratedFunctionLibrary

    public IntegratedFunctionLibrary getIntegratedFunctionLibrary()

  Get the IntegratedFunction library containing integrated extension functions

  Returns:
    the IntegratedFunctionLibrary
  Since:
    9.2

### getVendorFunctionLibrary

    public VendorFunctionLibrary getVendorFunctionLibrary()

  Get the FunctionLibrary used to bind calls on Saxon-defined extension functions.

  This method is intended for internal use only.

  Returns:
    the FunctionLibrary used for extension functions in the Saxon library.

### addExtensionBinders

    public void addExtensionBinders(FunctionLibraryList list)

  Add the registered extension binders to a function library. This method is intended primarily for internal use

### newUserFunction

    public UserFunction newUserFunction(boolean memoFunction)

  Make a UserFunction object. This method is for internal use.

  Parameters:
    `memoFunction` - true if the function is to be a memo function, This option is ignored in Saxon-HE.

### setCollationURIResolver

    public void setCollationURIResolver(CollationURIResolver resolver)

  Set a CollationURIResolver to be used to resolve collation URIs (that is, to take a URI identifying a collation, and return the corresponding collation). Note that Saxon attempts first to resolve a collation URI using the resolver registered with the Controller; if that returns null, it tries again using the resolver registered with the Configuration.

  Note that it is undefined whether collation URIs are resolved at compile time or at run-time. It is therefore inadvisable to change the CollationURIResolver after compiling a query or stylesheet and before running it.

  Parameters:
    `resolver` - the collation URI resolver to be used. This replaces any collation URI resolver previously registered.
  Since:
    8.5

### getCollationURIResolver

    public CollationURIResolver getCollationURIResolver()

  Get the collation URI resolver associated with this configuration. This will return the CollationURIResolver previously set using the `setCollationURIResolver(net.sf.saxon.lib.CollationURIResolver)` method; if this has not been called, it returns the system-defined collation URI resolver

  Returns:
    the registered CollationURIResolver
  Since:
    8.5

### getCollationMap

    public CollationMap getCollationMap()

  Get the collation map, which can be used to register named collations (and a default collation) at the Configuration level. Any collations registered in this collation map apply to all queries, stylesheets, and Xpath expressions compiled under this collation. The effective contents of the collation map are the contents at the time the query or stylesheet is compiled.

### setDefaultCollection

    public void setDefaultCollection(String uri)

  Set the default collection.

  If no default collection URI is specified, then a request for the default collection is handled by calling the registered collection URI resolver with an argument of null.

  Parameters:
    `uri` - the URI of the default collection. Calling the collection() function with no arguments is equivalent to calling collection() with this URI as an argument. The URI will be dereferenced by passing it to the registered CollectionURIResolver
  Since:
    9.2

### getDefaultCollection

    public String getDefaultCollection()

  Get the URI of the default collection. Returns null if no default collection URI has been registered.

  Returns:
    the default collection URI. This is dereferenced in the same way as a normal collection URI (via the CollectionURIResolver) to return a sequence of nodes
  Since:
    9.2

### setCollectionURIResolver

    public void setCollectionURIResolver(CollectionURIResolver resolver)

  Set a CollectionURIResolver to be used to resolve collection URIs (that is, the URI supplied in a call to the collection() function).

  Collection URIs are always resolved at run-time, using the CollectionURIResolver in force at the time the collection() function is called.

  Parameters:
    `resolver` - the collection URI resolver to be used. This replaces any collection URI resolver previously registered.
  Since:
    8.5

### getCollectionURIResolver

    public CollectionURIResolver getCollectionURIResolver()

  Get the collection URI resolver associated with this configuration. This will return the CollectionURIResolver previously set using the `setCollectionURIResolver(net.sf.saxon.lib.CollectionURIResolver)` method; if this has not been called, it returns the system-defined collection URI resolver

  Returns:
    the registered CollationURIResolver
  Since:
    8.5

### setLocalizerFactory

    public void setLocalizerFactory(LocalizerFactory factory)

  Set the localizer factory to be used

  Parameters:
    `factory` - the LocalizerFactory
  Since:
    9.2

### getLocalizerFactory

    public LocalizerFactory getLocalizerFactory()

  Get the localizer factory in use

  Returns:
    the LocalizerFactory, if any. If none has been set, returns null.
  Since:
    9.2

### setDefaultLanguage

    public void setDefaultLanguage(String language)

  Set the default language to be used for number and date formatting when no language is specified. If none is set explicitly, the default Locale for the Java Virtual Machine is used.

  Parameters:
    `language` - the default language to be used, as an ISO code for example "en" or "fr-CA"
  Since:
    9.2

### getDefaultLanguage

    public String getDefaultLanguage()

  Get the default language. Unless an explicit default is set, this will be the language of the default Locale for the Java Virtual Machine

  Returns:
    the default language
  Since:
    9.2

### setDefaultCountry

    public void setDefaultCountry(String country)

  Set the default country to be used for number and date formatting when no country is specified. If none is set explicitly, the default Locale for the Java Virtual Machine is used.

  Parameters:
    `country` - the default country to be used, as an ISO code for example "US" or "GB"
  Since:
    9.2

### getDefaultCountry

    public String getDefaultCountry()

  Get the default country to be used for number and date formatting when no country is specified. If none is set explicitly, the default Locale for the Java Virtual Machine is used.

  Returns:
    the default country to be used, as an ISO code for example "US" or "GB"
  Since:
    9.2

### makeNumberer

    public Numberer makeNumberer(String language,
                                 String country)

  Load a Numberer class for a given language and check it is OK. This method is provided primarily for internal use.

  Parameters:
    `language` - the language for which a Numberer is required. May be null, indicating default language
    `country` - the country for which a Numberer is required. May be null, indicating default country
  Returns:
    a suitable numberer. If no specific numberer is available for the language, the default numberer (normally English) is used.

### setModuleURIResolver

    public void setModuleURIResolver(ModuleURIResolver resolver)

  Set a user-defined ModuleURIResolver for resolving URIs used in "import module" declarations in an XQuery prolog. This acts as the default value for the ModuleURIResolver in the StaticQueryContext, and may be overridden by a more specific ModuleURIResolver nominated as part of the StaticQueryContext.

  Parameters:
    `resolver` - the URI resolver for XQuery modules

### setModuleURIResolver

    public void setModuleURIResolver(String className)
                              throws TransformerException

  Create and register an instance of a ModuleURIResolver with a specified class name. This will be used for resolving URIs in XQuery "import module" declarations, unless a more specific ModuleURIResolver has been nominated as part of the StaticQueryContext.

  Parameters:
    `className` - The fully-qualified name of the LocationHintResolver class
  Throws:
    `TransformerException` - if the requested class does not implement the net.sf.saxon.LocationHintResolver interface

### getModuleURIResolver

    public ModuleURIResolver getModuleURIResolver()

  Get the user-defined ModuleURIResolver for resolving URIs used in "import module" declarations in the XQuery prolog; returns null if none has been explicitly set.

  Returns:
    the resolver for Module URIs

### getStandardModuleURIResolver

    public ModuleURIResolver getStandardModuleURIResolver()

  Get the standard system-defined ModuleURIResolver for resolving URIs used in "import module" declarations in the XQuery prolog.

  Returns:
    the standard system-defined ModuleURIResolver for resolving URIs

### setSchemaURIResolver

    public void setSchemaURIResolver(SchemaURIResolver resolver)

  Set a user-defined SchemaURIResolver for resolving URIs used in "import schema" declarations.

  Parameters:
    `resolver` - the URI resolver used for import schema declarations

### getSchemaURIResolver

    public SchemaURIResolver getSchemaURIResolver()

  Get the user-defined SchemaURIResolver for resolving URIs used in "import schema" declarations; if none has been explicitly set, returns null.

  Returns:
    the user-defined SchemaURIResolver for resolving URIs

### getDefaultXsltCompilerInfo

    public CompilerInfo getDefaultXsltCompilerInfo()

  Get the default options for XSLT compilation

  Returns:
    the default options for XSLT compilation. The CompilerInfo object will reflect any options set using other methods available for this Configuration object

### getDefaultStaticQueryContext

    public StaticQueryContext getDefaultStaticQueryContext()

  Get the default options for XQuery compilation

### getRecoveryPolicy

    public int getRecoveryPolicy()

  Determine how recoverable run-time errors are to be handled. This applies only if the standard ErrorListener is used.

  Returns:
    the current recovery policy. The options are `RECOVER_SILENTLY`, `RECOVER_WITH_WARNINGS`, or `DO_NOT_RECOVER`.
  Since:
    8.4

### setRecoveryPolicy

    public void setRecoveryPolicy(int recoveryPolicy)

  Determine how recoverable run-time errors are to be handled. This applies only if the standard ErrorListener is used. The recovery policy applies to errors classified in the XSLT 2.0 specification as recoverable dynamic errors, but only in those cases where Saxon provides a choice over how the error is handled: in some cases, Saxon makes the decision itself.

  Parameters:
    `recoveryPolicy` - the recovery policy to be used. The options are `RECOVER_SILENTLY`, `RECOVER_WITH_WARNINGS`, or `DO_NOT_RECOVER`.
  Since:
    8.4

### getMessageEmitterClass

    public String getMessageEmitterClass()

  Get the name of the class that will be instantiated to create a MessageEmitter, to process the output of xsl:message instructions in XSLT.

  Returns:
    the full class name of the message emitter class.
  Since:
    8.4

### setMessageEmitterClass

    public void setMessageEmitterClass(String messageReceiverClassName)

  Set the name of the class that will be instantiated to to process the output of xsl:message instructions in XSLT.

  Parameters:
    `messageReceiverClassName` - the full class name of the message receiver. This must implement net.sf.saxon.event.Receiver.
  Since:
    8.4

### getSourceParserClass

    public String getSourceParserClass()

  Get the name of the class that will be instantiated to create an XML parser for parsing source documents (for example, documents loaded using the document() or doc() functions).

  This method is retained in Saxon for backwards compatibility, but the preferred way of choosing an XML parser is to use JAXP interfaces, for example by supplying a JAXP Source object initialized with an appropriate implementation of org.xml.sax.XMLReader.

  Returns:
    the fully qualified name of the XML parser class

### setSourceParserClass

    public void setSourceParserClass(String sourceParserClass)

  Set the name of the class that will be instantiated to create an XML parser for parsing source documents (for example, documents loaded using the document() or doc() functions).

  This method is retained in Saxon for backwards compatibility, but the preferred way of choosing an XML parser is to use JAXP interfaces, for example by supplying a JAXP Source object initialized with an appropriate implementation of org.xml.sax.XMLReader.

  Parameters:
    `sourceParserClass` - the fully qualified name of the XML parser class. This must implement the SAX2 XMLReader interface.

### getStyleParserClass

    public String getStyleParserClass()

  Get the name of the class that will be instantiated to create an XML parser for parsing stylesheet modules.

  This method is retained in Saxon for backwards compatibility, but the preferred way of choosing an XML parser is to use JAXP interfaces, for example by supplying a JAXP Source object initialized with an appropriate implementation of org.xml.sax.XMLReader.

  Returns:
    the fully qualified name of the XML parser class

### setStyleParserClass

    public void setStyleParserClass(String parser)

  Set the name of the class that will be instantiated to create an XML parser for parsing stylesheet modules.

  This method is retained in Saxon for backwards compatibility, but the preferred way of choosing an XML parser is to use JAXP interfaces, for example by supplying a JAXP Source object initialized with an appropriate implementation of org.xml.sax.XMLReader.

  Parameters:
    `parser` - the fully qualified name of the XML parser class

### getOutputURIResolver

    public OutputURIResolver getOutputURIResolver()

  Get the OutputURIResolver that will be used to resolve URIs used in the href attribute of the xsl:result-document instruction.

  Returns:
    the OutputURIResolver. If none has been supplied explicitly, the default OutputURIResolver is returned.
  Since:
    8.4

### setOutputURIResolver

    public void setOutputURIResolver(OutputURIResolver outputURIResolver)

  Set the OutputURIResolver that will be used to resolve URIs used in the href attribute of the xsl:result-document instruction.

  Parameters:
    `outputURIResolver` - the OutputURIResolver to be used.
  Since:
    8.4

### setSerializerFactory

    public void setSerializerFactory(SerializerFactory factory)

  Set a custom SerializerFactory. This will be used to create a serializer for a given set of output properties and result destination.

  Parameters:
    `factory` - a custom SerializerFactory
  Since:
    8.8

### getSerializerFactory

    public SerializerFactory getSerializerFactory()

  Get the SerializerFactory. This returns the standard built-in SerializerFactory, unless a custom SerializerFactory has been registered.

  Returns:
    the SerializerFactory in use
  Since:
    8.8

### getCharacterSetFactory

    public CharacterSetFactory getCharacterSetFactory()

  Get the CharacterSetFactory. Note: at present this cannot be changed.

  Returns:
    the CharacterSetFactory in use.
  Since:
    9.2

### setDefaultSerializationProperties

    public void setDefaultSerializationProperties(Properties props)

  Set the default serialization properties

  Parameters:
    `props` - the default properties

### getDefaultSerializationProperties

    public Properties getDefaultSerializationProperties()

  Get the default serialization properties

  Returns:
    the default properties

### isTiming

    public boolean isTiming()

  Determine whether brief progress messages and timing information will be output to System.err.

  This method is provided largely for internal use. Progress messages are normally controlled directly from the command line interfaces, and are not normally used when driving Saxon from the Java API.

  Returns:
    true if these messages are to be output.

### setTiming

    public void setTiming(boolean timing)

  Determine whether brief progress messages and timing information will be output to System.err.

  This method is provided largely for internal use. Progress messages are normally controlled directly from the command line interfaces, and are not normally used when

  Parameters:
    `timing` - true if these messages are to be output.

### isVersionWarning

    public boolean isVersionWarning()

  Determine whether a warning is to be output when running against a stylesheet labelled as version="1.0". The XSLT specification requires such a warning unless the user disables it.

  Returns:
    true if these messages are to be output.
  Since:
    8.4

### setVersionWarning

    public void setVersionWarning(boolean warn)

  Determine whether a warning is to be output when the version attribute of the stylesheet does not match the XSLT processor version. (In the case where the stylesheet version is "1.0", the XSLT specification requires such a warning unless the user disables it.)

  Parameters:
    `warn` - true if these warning messages are to be output.
  Since:
    8.4

### isAllowExternalFunctions

    public boolean isAllowExternalFunctions()

  Determine whether calls to external Java functions are permitted.

  Returns:
    true if such calls are permitted.
  Since:
    8.4

### setAllowExternalFunctions

    public void setAllowExternalFunctions(boolean allowExternalFunctions)

  Determine whether calls to external Java functions are permitted. Allowing external function calls is potentially a security risk if the stylesheet or Query is untrusted, as it allows arbitrary Java methods to be invoked, which can examine or modify the contents of filestore and other resources on the machine where the query/stylesheet is executed.

  Setting the value to false disallows all of the following:

  - Calls to Java extension functions
  - Use of the XSLT system-property() function to access Java system properties
  - Use of a relative URI in the `xsl:result-document` instruction
  - Calls to XSLT extension instructions

  Note that this option does not disable use of the `doc()` function or similar functions to access the filestore of the machine where the transformation or query is running. That should be done using a user-supplied `URIResolver`

  Parameters:
    `allowExternalFunctions` - true if external function calls are to be permitted.
  Since:
    8.4

### isTraceExternalFunctions

    public boolean isTraceExternalFunctions()

  Determine whether calls on external functions are to be traced for diagnostic purposes.

  Returns:
    true if tracing is enabled for calls to external Java functions

### setRetainDTDAttributeTypes

    public void setRetainDTDAttributeTypes(boolean useTypes)
                                    throws TransformerFactoryConfigurationError

  Deprecated. since 9.2 This feature was dropped from the final XDM specification and will be dropped in a future Saxon release. The facility is supported only in Saxon-EE. Use an XSD schema to define the attribute types instead.

  Say whether attribute types obtained from a DTD are to be used to set type annotations on the resulting nodes.

  Parameters:
    `useTypes` - set to true if DTD types are to be taken into account
  Throws:
    `TransformerFactoryConfigurationError`
  Since:
    8.4

### isRetainDTDAttributeTypes

    public boolean isRetainDTDAttributeTypes()

  Ask whether attribute types obtained from a DTD are to be used to set type annotations on the resulting nodes

  Returns:
    true if DTD types are to be taken into account
  Since:
    8.4

### setTraceExternalFunctions

    public void setTraceExternalFunctions(boolean traceExternalFunctions)

  Determine whether calls on external functions are to be traced for diagnostic purposes.

  Parameters:
    `traceExternalFunctions` - true if tracing is to be enabled for calls to external Java functions

### isValidation

    public boolean isValidation()

  Determine whether the XML parser for source documents will be asked to perform validation of source documents

  Returns:
    true if DTD validation is requested.
  Since:
    8.4

### setValidation

    public void setValidation(boolean validation)

  Determine whether the XML parser for source documents will be asked to perform DTD validation of source documents

  Parameters:
    `validation` - true if DTD validation is to be requested.
  Since:
    8.4

### makeDocumentProjector

    public ProxyReceiver makeDocumentProjector(PathMap.PathMapRoot map)

  Create a document projector for a given path map. Document projection is available only in Saxon-EE, so the Saxon-B version of this method throws an exception

  Parameters:
    `map` - the path map used to control document projection
  Returns:
    a push filter that implements document projection
  Throws:
    `UnsupportedOperationException` - if this is not a schema-aware configuration, or if no Saxon-EE license is available

### getSchemaValidationMode

    public int getSchemaValidationMode()

  Ask whether source documents (supplied as a StreamSource or SAXSource) should be subjected to schema validation, and if so, in what validation mode

  Returns:
    the schema validation mode previously set using setSchemaValidationMode(), or the default mode `Validation.STRIP` otherwise.

### setSchemaValidationMode

    public void setSchemaValidationMode(int validationMode)

  Say whether source documents (supplied as a StreamSource or SAXSource) should be subjected to schema validation, and if so, in what validation mode. This value may be overridden at the level of a Controller for an individual transformation or query.

  Parameters:
    `validationMode` - the validation (or construction) mode to be used for source documents. One of `Validation.STRIP`, `Validation.PRESERVE`, `Validation.STRICT`, `Validation.LAX`
  Since:
    8.4

### setValidationWarnings

    public void setValidationWarnings(boolean warn)

  Indicate whether schema validation failures on result documents are to be treated as fatal errors or as warnings.

  Parameters:
    `warn` - true if schema validation failures are to be treated as warnings; false if they are to be treated as fatal errors.
  Since:
    8.4

### isValidationWarnings

    public boolean isValidationWarnings()

  Determine whether schema validation failures on result documents are to be treated as fatal errors or as warnings.

  Returns:
    true if validation errors are to be treated as warnings (that is, the validation failure is reported but processing continues as normal); false if validation errors are fatal.
  Since:
    8.4

### setExpandAttributeDefaults

    public void setExpandAttributeDefaults(boolean expand)

  Indicate whether attributes that have a fixed or default value are to be expanded when generating a final result tree. By default (and for conformance with the W3C specifications) it is required that fixed and default values should be expanded. However, there are use cases for example when generating XHTML when this serves no useful purpose and merely bloats the output.

  This option can be overridden at the level of a PipelineConfiguration

  Parameters:
    `expand` - true if fixed and default values are to be expanded as required by the W3C specifications; false if this action is to be disabled. Note that this only affects the validation of final result trees; it is not possible to suppress expansion of fixed or default values on input documents, as this would make the type annotations on input nodes unsound.
  Since:
    9.0

### isExpandAttributeDefaults

    public boolean isExpandAttributeDefaults()

  Determine whether elements and attributes that have a fixed or default value are to be expanded. This option applies both to DTD-defined attribute defaults and to schema-defined defaults for elements and attributes. If an XML parser is used that does not report whether defaults have been used, this option is ignored.

  *

  This option can be overridden at the level of a PipelineConfiguration

  Returns:
    true if elements and attributes that have a fixed or default value are to be expanded, false if defaults are not to be expanded. The default value is true. Note that the setting "false" is potentially non-conformant with the W3C specifications.
  Since:
    9.0

### getNamePool

    public NamePool getNamePool()

  Get the target namepool to be used for stylesheets/queries and for source documents.

  Returns:
    the target name pool. If no NamePool has been specified explicitly, the default NamePool is returned.
  Since:
    8.4

### setNamePool

    public void setNamePool(NamePool targetNamePool)

  Set the NamePool to be used for stylesheets/queries and for source documents.

  Using this method allows several Configurations to share the same NamePool. This was the normal default arrangement until Saxon 8.9, which changed the default so that each Configuration uses its own NamePool.

  Sharing a NamePool creates a potential bottleneck, since changes to the namepool are synchronized.

  Parameters:
    `targetNamePool` - The NamePool to be used.
  Since:
    8.4

### getTypeHierarchy

    public final TypeHierarchy getTypeHierarchy()

  Get the TypeHierarchy: a cache holding type information

  Returns:
    the type hierarchy cache

### getDocumentNumberAllocator

    public DocumentNumberAllocator getDocumentNumberAllocator()

  Get the document number allocator.

  The document number allocator is used to allocate a unique number to each document built under this configuration. The document number forms the basis of all tests for node identity; it is therefore essential that when two documents are accessed in the same XPath expression, they have distinct document numbers. Normally this is ensured by building them under the same Configuration. Using this method together with `setDocumentNumberAllocator(net.sf.saxon.tree.util.DocumentNumberAllocator)`, however, it is possible to have two different Configurations that share a single DocumentNumberAllocator

  Returns:
    the current DocumentNumberAllocator
  Since:
    9.0

### setDocumentNumberAllocator

    public void setDocumentNumberAllocator(DocumentNumberAllocator allocator)

  Set the document number allocator.

  The document number allocator is used to allocate a unique number to each document built under this configuration. The document number forms the basis of all tests for node identity; it is therefore essential that when two documents are accessed in the same XPath expression, they have distinct document numbers. Normally this is ensured by building them under the same Configuration. Using this method together with `getDocumentNumberAllocator()`, however, it is possible to have two different Configurations that share a single DocumentNumberAllocator

  This method is for advanced applications only. Misuse of the method can cause problems with node identity. The method should not be used except while initializing a Configuration, and it should be used only to arrange for two different configurations to share the same DocumentNumberAllocators. In this case they should also share the same NamePool.

  Parameters:
    `allocator` - the DocumentNumberAllocator to be used
  Since:
    9.0

### isCompatible

    public boolean isCompatible(Configuration other)

  Determine whether two Configurations are compatible. When queries, transformations, and path expressions are run, all the Configurations used to build the documents and to compile the queries and stylesheets must be compatible. Two Configurations are compatible if they share the same NamePool and the same DocumentNumberAllocator.

  Parameters:
    `other` - the other Configuration to be compared with this one
  Returns:
    true if the two configurations are compatible

### getGlobalDocumentPool

    public DocumentPool getGlobalDocumentPool()

  Get the global document pool. This is used for documents preloaded during query or stylesheet compilation. The user application can preload documents into the global pool, where they will be found if any query or stylesheet requests the specified document using the doc() or document() function.

  Returns:
    the global document pool
  Since:
    9.1

### isStripsAllWhiteSpace

    public boolean isStripsAllWhiteSpace()

  Determine whether whitespace-only text nodes are to be stripped unconditionally from source documents.

  Returns:
    true if all whitespace-only text nodes are stripped.
  Since:
    8.4

### setStripsAllWhiteSpace

    public void setStripsAllWhiteSpace(boolean stripsAllWhiteSpace)

  Determine whether whitespace-only text nodes are to be stripped unconditionally from source documents.

  Parameters:
    `stripsAllWhiteSpace` - if all whitespace-only text nodes are to be stripped.
  Since:
    8.4

### setStripsWhiteSpace

    public void setStripsWhiteSpace(int kind)

  Set which kinds of whitespace-only text node should be stripped.

  Parameters:
    `kind` - the kind of whitespace-only text node that should be stripped when building a source tree. One of `Whitespace.NONE` (none), `Whitespace.ALL` (all), or `Whitespace.IGNORABLE` (element-content whitespace as defined in a DTD or schema)

### getStripsWhiteSpace

    public int getStripsWhiteSpace()

  Set which kinds of whitespace-only text node should be stripped.

  Returns:
    kind the kind of whitespace-only text node that should be stripped when building a source tree. One of `Whitespace.NONE` (none), `Whitespace.ALL` (all), or `Whitespace.IGNORABLE` (element-content whitespace as defined in a DTD or schema)

### getSourceParser

    public XMLReader getSourceParser()
                              throws TransformerFactoryConfigurationError

  Get a parser for source documents. The parser is allocated from a pool if any are available from the pool: the client should ideally return the parser to the pool after use, so that it can be reused.

  This method is intended primarily for internal use.

  Returns:
    a parser, in which the namespace properties must be set as follows: namespaces=true; namespace-prefixes=false. The DTD validation feature of the parser will be set on or off depending on the `setValidation(boolean)` setting.
  Throws:
    `TransformerFactoryConfigurationError`

### reuseSourceParser

    public void reuseSourceParser(XMLReader parser)

  Return a source parser to the pool, for reuse

  Parameters:
    `parser` - The parser: the caller must not supply a parser that was obtained by any mechanism other than calling the getSourceParser() method.

### getStyleParser

    public XMLReader getStyleParser()
                             throws TransformerFactoryConfigurationError

  Get the parser for stylesheet documents. This parser is also used for schema documents.

  This method is intended for internal use only.

  Returns:
    an XML parser (a SAX2 parser) that can be used for stylesheets and schema documents
  Throws:
    `TransformerFactoryConfigurationError`

### reuseStyleParser

    public void reuseStyleParser(XMLReader parser)

  Return a stylesheet (or schema) parser to the pool, for reuse

  Parameters:
    `parser` - The parser: the caller must not supply a parser that was obtained by any mechanism other than calling the getStyleParser() method.

### loadSchema

    public void loadSchema(String absoluteURI)
                    throws SchemaException

  Simple interface to load a schema document

  Parameters:
    `absoluteURI` - the absolute URI of the location of the schema document
  Throws:
    `SchemaException`

### readSchema

    public String readSchema(PipelineConfiguration pipe,
                             String baseURI,
                             String schemaLocation,
                             String expected)
                      throws SchemaException

  Read a schema from a given schema location

  This method is intended for internal use.

  Parameters:
    `pipe` - the PipelineConfiguration
    `baseURI` - the base URI of the instruction requesting the reading of the schema
    `schemaLocation` - the location of the schema to be read
    `expected` - The expected targetNamespace of the schema being read.
  Returns:
    the target namespace of the schema; null if there is no expectation
  Throws:
    `UnsupportedOperationException` - when called in the non-schema-aware version of the product
    `SchemaException`

### readMultipleSchemas

    public void readMultipleSchemas(PipelineConfiguration pipe,
                                    String baseURI,
                                    Collection schemaLocations,
                                    String expected)
                             throws SchemaException

  Read schemas from a list of schema locations.

  This method is intended for internal use.

  Parameters:
    `pipe` - the pipeline configuration
    `baseURI` - the base URI against which the schema locations are to be resolved
    `schemaLocations` - the relative URIs specified as schema locations
    `expected` - the namespace URI which is expected as the target namespace of the loaded schema
  Throws:
    `SchemaException`

### readInlineSchema

    public String readInlineSchema(NodeInfo root,
                                   String expected,
                                   ErrorListener errorListener)
                            throws SchemaException

  Read an inline schema from a stylesheet.

  This method is intended for internal use.

  Parameters:
    `root` - the xs:schema element in the stylesheet
    `expected` - the target namespace expected; null if there is no expectation.
    `errorListener` - The destination for error messages. May be null, in which case the errorListener registered with this Configuration is used.
  Returns:
    the actual target namespace of the schema
  Throws:
    `SchemaException`

### needEnterpriseEdition

    protected void needEnterpriseEdition()

  Throw an error indicating that a request cannot be satisfied because it requires the schema-aware edition of Saxon

### addSchemaSource

    public void addSchemaSource(Source schemaSource)
                         throws SchemaException

  Load a schema, which will be available for use by all subsequent operations using this Configuration. Any errors will be notified to the ErrorListener associated with this Configuration.

  Parameters:
    `schemaSource` - the JAXP Source object identifying the schema document to be loaded
  Throws:
    `SchemaException` - if the schema cannot be read or parsed or if it is invalid
    `UnsupportedOperationException` - if the configuration is not schema-aware
  Since:
    8.4

### addSchemaSource

    public void addSchemaSource(Source schemaSource,
                                ErrorListener errorListener)
                         throws SchemaException

  Load a schema, which will be available for use by all subsequent operations using this EnterpriseConfiguration.

  Parameters:
    `schemaSource` - the JAXP Source object identifying the schema document to be loaded
    `errorListener` - the ErrorListener to be notified of any errors in the schema.
  Throws:
    `SchemaException` - if the schema cannot be read or parsed or if it is invalid

### addSchemaForBuiltInNamespace

    public void addSchemaForBuiltInNamespace(String namespace)

  Add a built-in schema for a given namespace. This is a no-op if the configuration is not schema-aware

  Parameters:
    `namespace` - the namespace. Currently built-in schemas are available for the XML and FN namespaces

### isSchemaAvailable

    public boolean isSchemaAvailable(String targetNamespace)

  Determine whether the Configuration contains a cached schema for a given target namespace

  Parameters:
    `targetNamespace` - the target namespace of the schema being sought (supply "" for the unnamed namespace)
  Returns:
    true if the schema for this namespace is available, false if not.

### clearSchemaCache

    public void clearSchemaCache()

  Remove all schema components that have been loaded into this Configuration. This method must not be used if any processes (such as stylesheet or query compilations or executions) are currently active. In a multi-threaded environment, it is the user's responsibility to ensure that this method is not called unless it is safe to do so.

### getImportedNamespaces

    public Set getImportedNamespaces()

  Get the set of namespaces of imported schemas

  Returns:
    a Set whose members are the namespaces of all schemas in the schema cache, as String objects

### sealNamespace

    public void sealNamespace(String namespace)

  Mark a schema namespace as being sealed. This is done when components from this namespace are first used for validating a source document or compiling a source document or query. Once a namespace has been sealed, it is not permitted to change the schema components in that namespace by redefining them, deriving new types by extension, or adding to their substitution groups.

  Parameters:
    `namespace` - the namespace URI of the components to be sealed

### getExtensionsOfType

    public Iterator getExtensionsOfType(SchemaType type)

  Get the set of complex types that have been defined as extensions of a given type. Note that we do not seal the schema namespace, so this list is not necessarily final; we must assume that new extensions of built-in simple types can be added at any time

  Parameters:
    `type` - the type whose extensions are required

### importComponents

    public void importComponents(Source source)
                          throws XPathException

  Import a precompiled Schema Component Model from a given Source. The schema components derived from this schema document are added to the cache of schema components maintained by this SchemaManager

  Parameters:
    `source` - the XML file containing the schema component model, as generated by a previous call on `exportComponents(net.sf.saxon.event.Receiver)`
  Throws:
    `XPathException`

### exportComponents

    public void exportComponents(Receiver out)
                          throws XPathException

  Export a precompiled Schema Component Model containing all the components (except built-in components) that have been loaded into this Processor.

  Parameters:
    `out` - the destination to recieve the precompiled Schema Component Model in the form of an XML document
  Throws:
    `XPathException`

### getElementDeclaration

    public SchemaDeclaration getElementDeclaration(int fingerprint)

  Get a global element declaration.

  This method is intended for internal use.

  Parameters:
    `fingerprint` - the NamePool fingerprint of the name of the required element declaration
  Returns:
    the element declaration whose name matches the given fingerprint, or null if no element declaration with this name has been registered.

### getAttributeDeclaration

    public SchemaDeclaration getAttributeDeclaration(int fingerprint)

  Get a global attribute declaration.

  This method is intended for internal use

  Parameters:
    `fingerprint` - the namepool fingerprint of the required attribute declaration
  Returns:
    the attribute declaration whose name matches the given fingerprint, or null if no element declaration with this name has been registered.

### getSchemaType

    public SchemaType getSchemaType(int fingerprint)

  Get the top-level schema type definition with a given fingerprint.

  This method is intended for internal use and for use by advanced applications. (The SchemaType object returned cannot yet be considered a stable API, and may be superseded when a JAXP API for schema information is defined.)

  Parameters:
    `fingerprint` - the fingerprint of the schema type
  Returns:
    the schema type , or null if there is none with this name.

### isDeclaredNotation

    public boolean isDeclaredNotation(String uri,
                                      String local)

  Ask whether a given notation has been declared in the schema

  Specified by:
    `isDeclaredNotation` in interface `NotationSet`
  Parameters:
    `uri` - the targetNamespace of the notation
    `local` - the local part of the notation name
  Returns:
    true if the notation has been declared, false if not
  Since:
    9.3

### getExternalObjectType

    protected ExternalObjectType getExternalObjectType(int fingerprint)

  Get the external object type corresponding to a fingerprint if it is indeed an external object type, otherwise return null

  Parameters:
    `fingerprint` - the name of the type
  Returns:
    the external object type it the name is in the JAVA_TYPE namespace, otherwise null.

### checkTypeDerivationIsOK

    public void checkTypeDerivationIsOK(SchemaType derived,
                                        SchemaType base,
                                        int block)
                                 throws SchemaException,
                                        ValidationException

  Check that a type is validly derived from another type, following the rules for the Schema Component Constraint "Is Type Derivation OK (Simple)" (3.14.6) or "Is Type Derivation OK (Complex)" (3.4.6) as appropriate.

  Parameters:
    `derived` - the derived type
    `base` - the base type; the algorithm tests whether derivation from this type is permitted
    `block` - the derivations that are blocked by the relevant element declaration
  Throws:
    `SchemaException` - if the derivation is not allowed
    `ValidationException`

### getDocumentValidator

    public Receiver getDocumentValidator(Receiver receiver,
                                         String systemId,
                                         int validationMode,
                                         int stripSpace,
                                         SchemaType schemaType,
                                         int topLevelElementName)

  Get a document-level validator to add to a Receiver pipeline.

  This method is intended for internal use.

  Parameters:
    `receiver` - The receiver to which events should be sent after validation
    `systemId` - the base URI of the document being validated
    `validationMode` - for example Validation.STRICT or Validation.STRIP. The integer may also have the bit Validation.VALIDATE_OUTPUT set, indicating that the strean being validated is to be treated as a final output stream (which means multiple errors can be reported)
    `stripSpace` - options for space stripping
    `schemaType` - The type against which the outermost element of the document must be validated (null if there is no constraint)
    `topLevelElementName` - the namepool name code of the required top-level element in the instance document, or -1 if there is no specific element required
  Returns:
    A Receiver to which events can be sent for validation

### getElementValidator

    public SequenceReceiver getElementValidator(SequenceReceiver receiver,
                                                int nameCode,
                                                int locationId,
                                                SchemaType schemaType,
                                                int validation)
                                         throws XPathException

  Get a Receiver that can be used to validate an element, and that passes the validated element on to a target receiver. If validation is not supported, the returned receiver will be the target receiver.

  This method is intended for internal use.

  Parameters:
    `receiver` - the target receiver tp receive the validated element
    `nameCode` - the nameCode of the element to be validated. This must correspond to the name of an element declaration in a loaded schema
    `locationId` - current location in the stylesheet or query
    `schemaType` - the schema type (typically a complex type) against which the element is to be validated
    `validation` - The validation mode, for example Validation.STRICT or Validation.LAX
  Returns:
    The target receiver, indicating that with this configuration, no validation is performed.
  Throws:
    `XPathException`

### validateAttribute

    public int validateAttribute(int nameCode,
                                 CharSequence value,
                                 int validation)
                          throws ValidationException

  Validate an attribute value.

  This method is intended for internal use.

  Parameters:
    `nameCode` - the name of the attribute
    `value` - the value of the attribute as a string
    `validation` - STRICT or LAX
  Returns:
    the type annotation to apply to the attribute node
  Throws:
    `ValidationException` - if the value is invalid

### getAnnotationStripper

    public Receiver getAnnotationStripper(Receiver destination)

  Add to a pipeline a receiver that strips all type annotations. This has a null implementation in the Saxon-B product, because type annotations can never arise.

  This method is intended for internal use.

  Parameters:
    `destination` - the Receiver that events will be written to after whitespace stripping
  Returns:
    the Receiver to which events should be sent for stripping

### makeParser

    public XMLReader makeParser(String className)
                         throws TransformerFactoryConfigurationError

  Create a new SAX XMLReader object using the class name provided.

  The named class must exist and must implement the org.xml.sax.XMLReader or Parser interface.

  This method returns an instance of the parser named.

  This method is intended for internal use.

  Parameters:
    `className` - A string containing the name of the SAX parser class, for example "com.microstar.sax.LarkDriver"
  Returns:
    an instance of the Parser class named, or null if it is not loadable or is not a Parser.
  Throws:
    `TransformerFactoryConfigurationError`

### newExpressionParser

    public ExpressionParser newExpressionParser(String language,
                                                boolean updating,
                                                DecimalValue languageVersion)

  Make an expression Parser for a specified version of XPath or XQuery

  Parameters:
    `language` - set to "XP" (XPath) or "XQ" (XQuery)
    `updating` - indicates whether or not XQuery update syntax may be used. Note that XQuery Update is supported only in Saxon-EE
    `languageVersion` - the required version (e.g "1.0", "3.0")
  Returns:
    the QueryParser
  Throws:
    `UnsupportedOperationException` - if a parser that supports update syntax is requested on Saxon-B

### getLocale

    public static Locale getLocale(String lang)

  Get a locale given a language code in XML format.

  This method is intended for internal use.

  Parameters:
    `lang` - the language code
  Returns:
    the Java locale

### setDebugger

    public void setDebugger(Debugger debugger)

  Set the debugger to be used.

  This method is provided for advanced users only, and is subject to change.

  Parameters:
    `debugger` - the debugger to be used.

### getDebugger

    public Debugger getDebugger()

  Get the debugger in use. This will be null if no debugger has been registered.

  This method is provided for advanced users only, and is subject to change.

  Returns:
    the debugger in use, or null if none is in use

### makeSlotManager

    public SlotManager makeSlotManager()

  Factory method to create a SlotManager.

  This method is provided for advanced users only, and is subject to change.

  Returns:
    a SlotManager (which is a skeletal stack frame representing the mapping of variable names to slots on the stack frame)

### makeStreamingTransformer

    public Receiver makeStreamingTransformer(XPathContext context,
                                             Mode mode)
                                      throws XPathException

  Create a streaming transformer

  Parameters:
    `context` - the initial XPath context
    `mode` - the initial mode, which must be a streaming mode
  Returns:
    a Receiver to which the streamed input document will be pushed
  Throws:
    `XPathException`

### getOptimizer

    public Optimizer getOptimizer()

  Factory method to get an Optimizer.

  This method is intended for internal use only.

  Returns:
    the optimizer used in this configuration

### makeClosure

    public Value makeClosure(Expression expression,
                             int ref,
                             XPathContext context)
                      throws XPathException

  Make a Closure, given the expected reference count

  Parameters:
    `expression` - the expression to be evaluated
    `ref` - the (nominal) number of times the value of the expression is required
    `context` - the XPath dynamic evaluation context
  Returns:
    the constructed Closure
  Throws:
    `XPathException`

### makeSequenceExtent

    public ValueRepresentation makeSequenceExtent(Expression expression,
                                                  int ref,
                                                  XPathContext context)
                                           throws XPathException

  Make a SequenceExtent, given the expected reference count

  Parameters:
    `expression` - the expression to be evaluated
    `ref` - the (nominal) number of times the value of the expression is required
    `context` - the XPath dynamic evaluation context
  Returns:
    the constructed Closure
  Throws:
    `XPathException`

### makeStyleNodeFactory

    public StyleNodeFactory makeStyleNodeFactory()

  Factory method to get the StyleNodeFactory, used for constructing elements in a stylesheet document

  Returns:
    the StyleNodeFactory used in this Configuration

### setLazyConstructionMode

    public void setLazyConstructionMode(boolean lazy)

  Set lazy construction mode on or off. In lazy construction mode, element constructors are not evaluated until the content of the tree is required. Lazy construction mode is currently experimental and is therefore off by default.

  Parameters:
    `lazy` - true to switch lazy construction mode on, false to switch it off.

### isLazyConstructionMode

    public boolean isLazyConstructionMode()

  Determine whether lazy construction mode is on or off. In lazy construction mode, element constructors are not evaluated until the content of the tree is required. Lazy construction mode is currently experimental and is therefore off by default.

  Returns:
    true if lazy construction mode is enabled

### registerExternalObjectModel

    public void registerExternalObjectModel(ExternalObjectModel model)

  Register an external object model with this Configuration.

  Parameters:
    `model` - The external object model. This can either be one of the system-supplied external object models for JDOM, XOM, or DOM, or a user-supplied external object model.

    This method is intended for advanced users only, and is subject to change.

### getExternalObjectModel

    public ExternalObjectModel getExternalObjectModel(String uri)

  Get the external object model with a given URI, if registered

  Parameters:
    `uri` - the identifying URI of the required external object model
  Returns:
    the requested external object model if available, or null otherwise

### getExternalObjectModel

    public ExternalObjectModel getExternalObjectModel(Class nodeClass)

  Get the external object model that recognizes a particular class of node, if available

  Parameters:
    `nodeClass` - the class of the Node object in the external object model
  Returns:
    the requested external object model if available, or null otherwise

### getExternalObjectModels

    public List<ExternalObjectModel> getExternalObjectModels()

  Get all the registered external object models.

  This method is intended for internal use only.

  Returns:
    a list of external object models supported. The members of the list are of type `ExternalObjectModel`

### unravel

    public NodeInfo unravel(Source source)

  Get a NodeInfo corresponding to a DOM or other external Node, either by wrapping or unwrapping the external Node.

  This method is intended for internal use.

  Parameters:
    `source` - A Source representing the wrapped or unwrapped external Node. This will typically be a DOMSource, but it may be a similar Source recognized by some other registered external object model.
  Returns:
    If the Source is a DOMSource and the underlying node is a wrapper around a Saxon NodeInfo, returns the wrapped Saxon NodeInfo. If the Source is a DOMSource and the undelying node is not such a wrapper, returns a new Saxon NodeInfo that wraps the DOM Node. If the Source is any other kind of source, it is offered to each registered external object model for similar treatment. The result is the NodeInfo object obtained by wrapping or unwrapping the supplied external node.
  Throws:
    `IllegalArgumentException` - if the source object is not of a recognized class. This method does not call the registered `to resolve the Source`.

### setDOMLevel

    public void setDOMLevel(int level)

  Set the level of DOM interface to be used

  Parameters:
    `level` - the DOM level. Must be 2 or 3. By default Saxon assumes that DOM level 3 is available; this parameter can be set to the value 2 to indicate that Saxon should not use methods unless they are available in DOM level 2. From Saxon 9.2, this switch remains available, but the use of DOM level 2 is untested and unsupported.

### getDOMLevel

    public int getDOMLevel()

  Get the level of DOM interface to be used

  Returns:
    the DOM level. Always 2 or 3.

### newStaticQueryContext

    public StaticQueryContext newStaticQueryContext()

  Get a new StaticQueryContext (which is also the factory class for creating a query parser)

  Returns:
    a new StaticQueryContext

### newPendingUpdateList

    public PendingUpdateList newPendingUpdateList()

  Get a new Pending Update List

  Returns:
    the new Pending Update List
  Throws:
    `UnsupportedOperationException` - if called when using Saxon-B

### makePipelineConfiguration

    public PipelineConfiguration makePipelineConfiguration()

  Make a PipelineConfiguration from the properties of this Configuration

  Returns:
    a new PipelineConfiguration
  Since:
    8.4

### getConfiguration

    public static Configuration getConfiguration(XPathContext context)

  Get the configuration, given the context. This is provided as a static method to make it accessible as an extension function.

  Parameters:
    `context` - the XPath dynamic context
  Returns:
    the Saxon Configuration for a given XPath dynamic context

### setSourceResolver

    public void setSourceResolver(SourceResolver resolver)

  Supply a SourceResolver. This is used for handling unknown implementations of the `Source` interface: a user-supplied SourceResolver can handle such Source objects and translate them to a kind of Source that Saxon understands.

  Parameters:
    `resolver` - the source resolver.

### getSourceResolver

    public SourceResolver getSourceResolver()

  Get the current SourceResolver. If none has been supplied, a system-defined SourceResolver is returned.

  Returns:
    the current SourceResolver

### resolveSource

    public Source resolveSource(Source source,
                                Configuration config)
                         throws XPathException

  Resolve a Source.

  Specified by:
    `resolveSource` in interface `SourceResolver`
  Parameters:
    `source` - A source object, typically the source supplied as the first argument to `Transformer.transform(javax.xml.transform.Source, javax.xml.transform.Result)` or similar methods.
    `config` - The Configuration. This provides the SourceResolver with access to configuration information; it also allows the SourceResolver to invoke the resolveSource() method on the Configuration object as a fallback implementation.
  Returns:
    a source object that Saxon knows how to process. This must be an instance of one of the classes StreamSource, SAXSource, DOMSource, `AugmentedSource`, `NodeInfo`, or `PullSource`. Return null if the Source object is not recognized
  Throws:
    `XPathException` - if the Source object is recognized but cannot be processed

### buildDocument

    public DocumentInfo buildDocument(Source source)
                               throws XPathException

  Build a document tree, using options set on this Configuration and on the supplied source object. Options set on the source object override options set in the Configuration. The Source object must be one of the kinds of source recognized by Saxon, or a source that can be resolved using the registered `SourceResolver`.

  Parameters:
    `source` - the Source to be used. This may be an `AugmentedSource`, allowing options to be specified for the way in which this document will be built. If an AugmentedSource is supplied then options set in the AugmentedSource take precendence over options set in the Configuration.

    From Saxon 9.2, this method always creates a new tree, it never wraps or returns an existing tree.

  Returns:
    the document node of the constructed document
  Throws:
    `XPathException` - if any errors occur during document parsing or validation. Detailed errors occurring during schema validation will be written to the ErrorListener associated with the AugmentedSource, if supplied, or with the Configuration otherwise.
  Since:
    8.9. Modified in 9.0 to avoid copying a supplied document where this is not necessary. Modified in 9.2 so that this interface always constructs a new tree; it never wraps an existing document, even if an AugmentedSource that requests wrapping is supplied.

### buildDocument

    public DocumentInfo buildDocument(Source source,
                                      ParseOptions parseOptions)
                               throws XPathException

  Build a document, using specified options for parsing and building. This method always constructs a new tree, it never wraps an existing document (regardless of anything in the parseOptions)

  Parameters:
    `source` - the source of the document to be constructed. If this is an AugmentedSource, then any parser options contained in the AugmentedSource take precedence over options specified in the parseOptions argument.
    `parseOptions` - options for parsing and constructing the document. Any options that are not explicitly set in parseOptions default first to the values supplied in the source argument if it is an AugmentedSource, and then to the values set in this Configuration. The supplied parseOptions object is not modified.
  Returns:
    the document node of the constructed document
  Throws:
    `XPathException` - if parsing fails, or if the Source represents a node other than a document node
  Since:
    9.2

### makeEmitter

    public Receiver makeEmitter(String clarkName,
                                Properties props)
                         throws XPathException

  Load a named output emitter or SAX2 ContentHandler and check it is OK.

  Parameters:
    `clarkName` - the QName of the user-supplied ContentHandler (requested as a prefixed value of the method attribute in xsl:output, or anywhere that serialization parameters are allowed), encoded in Clark format as {uri}local
    `props` - the properties to be used in the case of a dynamically-loaded ContentHandler.
  Returns:
    a Receiver (despite the name, it is not required to be an Emitter)
  Throws:
    `XPathException`

### makeUnconstructedElement

    public NodeInfo makeUnconstructedElement(ElementCreator instr,
                                             XPathContext context)
                                      throws XPathException

  Make an "unconstructed" (that is, lazily-constructed) element node

  Parameters:
    `instr` - the instruction that creates the element
    `context` - the dynamic evaluation context
  Returns:
    the lazily constructed element node
  Throws:
    `XPathException`

### makeUnconstructedDocument

    public NodeInfo makeUnconstructedDocument(DocumentInstr instr,
                                              XPathContext context)
                                       throws XPathException

  Make an "unconstructed" (that is, lazily-constructed) document node

  Parameters:
    `instr` - the instruction that creates the document node
    `context` - the dynamic evaluation context
  Returns:
    the lazily constructed document node
  Throws:
    `XPathException`

### setConfigurationProperty

    public void setConfigurationProperty(String name,
                                         Object value)

  Set a property of the configuration. This method underpins the setAttribute() method of the TransformerFactory implementation, and is provided to enable setting of Configuration properties using URIs without instantiating a TransformerFactory: specifically, this may be useful when running XQuery, and it is also used by the Validator API

  Parameters:
    `name` - the URI identifying the property to be set. See the class `FeatureKeys` for constants representing the property names that can be set.
    `value` - the value of the property
  Throws:
    `IllegalArgumentException` - if the property name is not recognized or if the value is not a valid value for the named property

### requireBoolean

    protected boolean requireBoolean(String propertyName,
                                     Object value)

  Validate a property value where the required type is boolean

  Parameters:
    `propertyName` - the name of the property
    `value` - the supplied value of the property. This may be either a java.lang.Boolean, or a string taking one of the values on|off, true|false, yes|no, or 1|0 (suited to the conventions of different configuration APIs that end up calling this method)
  Returns:
    the value as a boolean
  Throws:
    `IllegalArgumentException` - if the supplied value cannot be validated as a recognized boolean value

### requireString

    protected String requireString(String propertyName,
                                   Object value)

### instantiateClassName

    protected Object instantiateClassName(String propertyName,
                                          Object value,
                                          Class requiredClass)

### getConfigurationProperty

    public Object getConfigurationProperty(String name)

  Get a property of the configuration

  Parameters:
    `name` - the name of the required property. See the class `FeatureKeys` for constants representing the property names that can be requested.
  Returns:
    the value of the property
  Throws:
    `IllegalArgumentException` - thrown if the property is not one that Saxon recognizes.

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