## net.sf.saxon.om
Interface AttributeCollection

All Known Implementing Classes:
  AttributeCollectionImpl, TinyAttributeCollection

    public interface AttributeCollection

AttributeCollection represents the collection of attributes available on a particular element node. It is modelled on the SAX2 Attributes interface, but is extended firstly to work with Saxon NamePools, and secondly to provide type information as required by the XPath 2.0 data model.

Method Summary
`int` `getIndex(java.lang.String uri, java.lang.String localname)` Get the index of an attribute (by name).
`int` `getIndexByFingerprint(int fingerprint)` Get the index, given the fingerprint
`int` `getLength()` Return the number of attributes in the list.
`int` `getLineNumber(int index)` Get the line number part of the location of an attribute, at a given index.
`java.lang.String` `getLocalName(int index)` Get the local name of an attribute (by position).
`int` `getLocationId(int index)` Get the locationID of an attribute (by position)
`int` `getNameCode(int index)` Get the namecode of an attribute (by position).
`java.lang.String` `getPrefix(int index)` Get the prefix of the name of an attribute (by position).
`int` `getProperties(int index)` Get the properties of an attribute (by position)
`java.lang.String` `getQName(int index)` Get the lexical QName of an attribute (by position).
`java.lang.String` `getSystemId(int index)` Get the systemId part of the location of an attribute, at a given index.
`int` `getTypeAnnotation(int index)` Get the type annotation of an attribute (by position).
`java.lang.String` `getURI(int index)` Get the namespace URI of an attribute (by position).
`java.lang.String` `getValue(int index)` Get the value of an attribute (by position).
`java.lang.String` `getValue(java.lang.String uri, java.lang.String localname)` Get the value of an attribute (by name).
`java.lang.String` `getValueByFingerprint(int fingerprint)` Get the attribute value using its fingerprint
`boolean` `isId(int index)` Determine whether a given attribute has the is-ID property set
`boolean` `isIdref(int index)` Determine whether a given attribute has the is-idref property set

Method Detail

### getLength

    int getLength()

  Return the number of attributes in the list.

  Returns:
    The number of attributes in the list.

### getNameCode

    int getNameCode(int index)

  Get the namecode of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The name code of the attribute, or -1 if there is no attribute at that position.

### getTypeAnnotation

    int getTypeAnnotation(int index)

  Get the type annotation of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The type annotation, as the fingerprint of the type name. The bit `NodeInfo.IS_DTD_TYPE` represents a DTD-derived type.

### getLocationId

    int getLocationId(int index)

  Get the locationID of an attribute (by position)

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The location identifier of the attribute. This can be supplied to a `LocationProvider` in order to obtain the actual system identifier and line number of the relevant location

### getSystemId

    java.lang.String getSystemId(int index)

  Get the systemId part of the location of an attribute, at a given index.

  Attribute location information is not available from a SAX parser, so this method is not useful for getting the location of an attribute in a source document. However, in a Saxon result document, the location information represents the location in the stylesheet of the instruction used to generate this attribute, which is useful for debugging.

  Parameters:
    `index` - the required attribute
  Returns:
    the systemId of the location of the attribute

### getLineNumber

    int getLineNumber(int index)

  Get the line number part of the location of an attribute, at a given index.

  Attribute location information is not available from a SAX parser, so this method is not useful for getting the location of an attribute in a source document. However, in a Saxon result document, the location information represents the location in the stylesheet of the instruction used to generate this attribute, which is useful for debugging.

  Parameters:
    `index` - the required attribute
  Returns:
    the line number of the location of the attribute

### getProperties

    int getProperties(int index)

  Get the properties of an attribute (by position)

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The properties of the attribute. This is a set of bit-settings defined in class `ReceiverOptions`. The most interesting of these is {`ReceiverOptions.DEFAULTED_ATTRIBUTE`, which indicates an attribute that was added to an element as a result of schema validation.

### getPrefix

    java.lang.String getPrefix(int index)

  Get the prefix of the name of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The prefix of the attribute name as a string, or null if there is no attribute at that position. Returns "" for an attribute that has no prefix.

### getQName

    java.lang.String getQName(int index)

  Get the lexical QName of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The lexical QName of the attribute as a string, or null if there is no attribute at that position.

### getLocalName

    java.lang.String getLocalName(int index)

  Get the local name of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The local name of the attribute as a string, or null if there is no attribute at that position.

### getURI

    java.lang.String getURI(int index)

  Get the namespace URI of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The local name of the attribute as a string, or null if there is no attribute at that position.

### getIndex

    int getIndex(java.lang.String uri,
                 java.lang.String localname)

  Get the index of an attribute (by name).

  Parameters:
    `uri` - The namespace uri of the attribute.
    `localname` - The local name of the attribute.
  Returns:
    The index position of the attribute

### getIndexByFingerprint

    int getIndexByFingerprint(int fingerprint)

  Get the index, given the fingerprint

### getValueByFingerprint

    java.lang.String getValueByFingerprint(int fingerprint)

  Get the attribute value using its fingerprint

### getValue

    java.lang.String getValue(java.lang.String uri,
                              java.lang.String localname)

  Get the value of an attribute (by name).

  Parameters:
    `uri` - The namespace uri of the attribute.
    `localname` - The local name of the attribute.
  Returns:
    The value of the attribute

### getValue

    java.lang.String getValue(int index)

  Get the value of an attribute (by position).

  Parameters:
    `index` - The position of the attribute in the list.
  Returns:
    The attribute value as a string, or null if there is no attribute at that position.

### isId

    boolean isId(int index)

  Determine whether a given attribute has the is-ID property set

### isIdref

    boolean isIdref(int index)

  Determine whether a given attribute has the is-idref property set

Copyright (c) Saxonica Limited. All rights reserved.