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## com.icl.saxon.om
Class Builder

    java.lang.Object
      com.icl.saxon.output.Emitter
          com.icl.saxon.om.Builder

All Implemented Interfaces:
  org.xml.sax.ErrorHandler, org.xml.sax.Locator, Result, SourceLocator

Direct Known Subclasses:
  TinyBuilder, TreeBuilder

public abstract class Builder
extends Emitter
implements org.xml.sax.ErrorHandler, org.xml.sax.Locator, SourceLocator

The abstract Builder class is responsible for taking a stream of SAX events and constructing a Document tree. There is one concrete subclass for each tree implementation.

Field Summary
`protected int` | `columnNumber`
`protected Controller` | `controller`
`protected DocumentInfo` | `currentDocument`
`protected boolean` | `discardComments`
`protected org.xml.sax.ErrorHandler` | `errorHandler`
`protected ErrorListener` | `errorListener`
`protected java.io.Writer` | `errorOutput`
`protected int` | `estimatedLength`
`protected boolean` | `failed`
`protected boolean` | `inDTD`
`protected int` | `lineNumber`
`protected boolean` | `lineNumbering`
`protected PreviewManager` | `previewManager`
`static int` | `STANDARD_TREE`
`protected boolean` | `started`
`protected Stripper` | `stripper`
`protected boolean` | `timing`
`static int` | `TINY_TREE`

Fields inherited from class com.icl.saxon.output.Emitter
`locator, namePool, outputProperties, outputStream, systemId, writer`

Fields inherited from interface javax.xml.transform.Result
`PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING`

Constructor Summary
`Builder()` create a Builder and initialise variables

Method Summary
`DocumentInfo` | `build(SAXSource source)` Build the tree from an input source.
`void` | `error(org.xml.sax.SAXParseException e)` Callback interface for SAX: not for application use
`void` | `fatalError(org.xml.sax.SAXParseException e)` Callback interface for SAX: not for application use
`int` | `getColumnNumber()` Return the character position where the current document event ends.
`DocumentInfo` | `getCurrentDocument()` Get the current document
`int` | `getLineNumber()` Return the line number where the current document event ends.
`java.lang.String` | `getPublicId()` Return the public identifier for the current document event.
`Stripper` | `getStripper()` Get the Stripper in use
`boolean` | `isTiming()` Get timing option
`protected void` | `reportError(org.xml.sax.SAXParseException e, boolean isFatal)` Common routine for errors and fatal errors
`void` | `setController(Controller c)`
`void` | `setDiscardCommentsAndPIs(boolean discard)` Indicate whether comments and Processing Instructions should be discarded
`void` | `setErrorHandler(org.xml.sax.ErrorHandler eh)` Set the SAX error handler to use.
`void` | `setErrorListener(ErrorListener eh)` Set the JAXP error listener to use, if no SAX errorHandler has been provided.
`void` | `setErrorOutput(java.io.Writer writer)` Set output for error messages produced by the default error handler. The default error handler does not throw an exception for parse errors or input I/O errors, rather it returns a result code and writes diagnostics to a user-specified output writer, which defaults to System.err This call has no effect if setErrorHandler() has been called to supply a user-defined error handler
`void` | `setLineNumbering(boolean onOrOff)` Set line numbering on or off
`void` | `setPreviewManager(PreviewManager pm)` Set the PreviewManager to use
`void` | `setRootNode(DocumentInfo doc)` Set the root (document) node to use.
`void` | `setStripper(Stripper s)` Set the Stripper to use
`void` | `setTiming(boolean on)` Set timing option on or off
`abstract void` | `setUnparsedEntity(java.lang.String name, java.lang.String uri)` Set the URI for an unparsed entity in the document.
`void` | `warning(org.xml.sax.SAXParseException e)` Callback interface for SAX: not for application use

Methods inherited from class com.icl.saxon.output.Emitter
`characters, comment, endDocument, endElement, getNamePool, getOutputProperties, getOutputStream, getSystemId, getWriter, makeEmitter, processingInstruction, setDocumentLocator, setEscaping, setNamePool, setOutputProperties, setOutputStream, setSystemId, setWriter, startDocument, startElement, usesWriter`

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

Methods inherited from interface org.xml.sax.Locator
`getSystemId`

Methods inherited from interface javax.xml.transform.SourceLocator
`getSystemId`

Field Detail

### STANDARD_TREE

    public static final int STANDARD_TREE

See Also:
  Constant Field Values

### TINY_TREE

    public static final int TINY_TREE

See Also:
  Constant Field Values

### estimatedLength

    protected int estimatedLength

### errorOutput

    protected java.io.Writer errorOutput

### stripper

    protected Stripper stripper

### previewManager

    protected PreviewManager previewManager

### discardComments

    protected boolean discardComments

### currentDocument

    protected DocumentInfo currentDocument

### errorHandler

    protected org.xml.sax.ErrorHandler errorHandler

### errorListener

    protected ErrorListener errorListener

### failed

    protected boolean failed

### started

    protected boolean started

### timing

    protected boolean timing

### inDTD

    protected boolean inDTD

### lineNumbering

    protected boolean lineNumbering

### lineNumber

    protected int lineNumber

### columnNumber

    protected int columnNumber

### controller

    protected Controller controller

Constructor Detail

### Builder

    public Builder()

  create a Builder and initialise variables

Method Detail

### setController

    public void setController(Controller c)

### setRootNode

    public void setRootNode(DocumentInfo doc)

  Set the root (document) node to use. This method is used to support the JAXP facility to attach transformation output to a supplied Document node. It must be called before startDocument(), and the type of document node must be compatible with the type of Builder used.

### setTiming

    public void setTiming(boolean on)

  Set timing option on or off

### isTiming

    public boolean isTiming()

  Get timing option

### setLineNumbering

    public void setLineNumbering(boolean onOrOff)

  Set line numbering on or off

### setStripper

    public void setStripper(Stripper s)

  Set the Stripper to use

### getStripper

    public Stripper getStripper()

  Get the Stripper in use

### setPreviewManager

    public void setPreviewManager(PreviewManager pm)

  Set the PreviewManager to use

### setDiscardCommentsAndPIs

    public void setDiscardCommentsAndPIs(boolean discard)

  Indicate whether comments and Processing Instructions should be discarded

### setErrorHandler

    public void setErrorHandler(org.xml.sax.ErrorHandler eh)

  Set the SAX error handler to use. If none is specified, SAXON supplies its own, which writes error messages to the selected error output writer.

  Parameters:
    `eh` - The error handler to use. It must conform to the interface org.xml.sax.ErrorHandler

### setErrorListener

    public void setErrorListener(ErrorListener eh)

  Set the JAXP error listener to use, if no SAX errorHandler has been provided.

  Parameters:
    `eh` - The error listener to use. It must conform to the interface javax.xml.transform.ErrorListener

### setErrorOutput

    public void setErrorOutput(java.io.Writer writer)

  Set output for error messages produced by the default error handler.
  The default error handler does not throw an exception for parse errors or input I/O errors, rather it returns a result code and writes diagnostics to a user-specified output writer, which defaults to System.err
  This call has no effect if setErrorHandler() has been called to supply a user-defined error handler

  Parameters:
    `writer` - The Writer to use for error messages

### build

    public DocumentInfo build(SAXSource source)
                       throws TransformerException

  Build the tree from an input source. After building the tree, it can be walked as often as required using run(Document doc).

  Parameters:
    `source` - The source to use. SAXSource is a SAX-defined class that allows input from a URL, a byte stream, or a character stream. SAXON also provides a subclass, ExtendedInputSource, that allows input directly from a File.
  Returns:
    The DocumentInfo object that results from parsing the input.
  Throws:
    `TransformerException` - if the input document could not be read or if it was not parsed correctly.

### getCurrentDocument

    public DocumentInfo getCurrentDocument()

  Get the current document

  Returns:
    the document that has been most recently built using this builder

### warning

    public void warning(org.xml.sax.SAXParseException e)

  Callback interface for SAX: not for application use

  Specified by:
    `warning` in interface `org.xml.sax.ErrorHandler`

### error

    public void error(org.xml.sax.SAXParseException e)
               throws org.xml.sax.SAXException

  Callback interface for SAX: not for application use

  Specified by:
    `error` in interface `org.xml.sax.ErrorHandler`
  Throws:
    `org.xml.sax.SAXException`

### fatalError

    public void fatalError(org.xml.sax.SAXParseException e)
                    throws org.xml.sax.SAXException

  Callback interface for SAX: not for application use

  Specified by:
    `fatalError` in interface `org.xml.sax.ErrorHandler`
  Throws:
    `org.xml.sax.SAXException`

### reportError

    protected void reportError(org.xml.sax.SAXParseException e,
                               boolean isFatal)

  Common routine for errors and fatal errors

### setUnparsedEntity

    public abstract void setUnparsedEntity(java.lang.String name,
                                           java.lang.String uri)

  Set the URI for an unparsed entity in the document. Abstract method to be implemented in each subclass.

  Overrides:
    `setUnparsedEntity` in class `Emitter`

### getPublicId

    public java.lang.String getPublicId()

  Description copied from interface: `SourceLocator`
  Return the public identifier for the current document event.

  The return value is the public identifier of the document entity or of the external parsed entity in which the markup that triggered the event appears.

  Specified by:
    `getPublicId` in interface `org.xml.sax.Locator`

### getLineNumber

    public int getLineNumber()

  Description copied from interface: `SourceLocator`
  Return the line number where the current document event ends.

  Warning: The return value from the method is intended only as an approximation for the sake of error reporting; it is not intended to provide sufficient information to edit the character content of the original XML document.

  The return value is an approximation of the line number in the document entity or external parsed entity where the markup that triggered the event appears.

  Specified by:
    `getLineNumber` in interface `org.xml.sax.Locator`

### getColumnNumber

    public int getColumnNumber()

  Description copied from interface: `SourceLocator`
  Return the character position where the current document event ends.

  Warning: The return value from the method is intended only as an approximation for the sake of error reporting; it is not intended to provide sufficient information to edit the character content of the original XML document.

  The return value is an approximation of the column number in the document entity or external parsed entity where the markup that triggered the event appears.

  Specified by:
    `getColumnNumber` in interface `org.xml.sax.Locator`

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