net.sf.saxon.tree.linked

Class AttributeMapWithIdentity

java.lang.Object

net.sf.saxon.tree.linked.AttributeMapWithIdentity

All Implemented Interfaces:

java.lang.Iterable<AttributeInfo>, AttributeMap

public class AttributeMapWithIdentity
extends java.lang.Object
implements AttributeMap

An implementation of AttributeMap suitable for representing attributes on a mutable tree. Unlike an ordinary AttributeMap, each AttributeInfo has a persistent index value, which remains unchanged when attributes are added or removed or renamed. New attributes are allocated an index value greater than any previously-allocated index value.

However, an AttributeMapWithIdentity, like any other AttributeMap, is an immutable object.

Method Summary

Modifier and Type	Method and Description
AttributeMapWithIdentity	add(AttributeInfo info)
java.util.List<AttributeInfo>	asList() Get the contents of the AttributeMap as a list of AttributeInfo objects.
AttributeInfo	get(NodeName name) Get the attribute with a given name, if it exists
AttributeInfo	get(java.lang.String uri, java.lang.String local) Get the attribute with a given name, if it exists
AttributeInfo	getByFingerprint(int fingerprint, NamePool namePool)
int	getIndex(java.lang.String uri, java.lang.String local)
AttributeInfo	itemAt(int index) Get the AttributeInfo with a given index.
AxisIterator	iterateAttributes(ElementImpl owner)
java.util.Iterator<AttributeInfo>	iterator()
AttributeMapWithIdentity	remove(int index) Remove an existing attribute, to create a new AttributeMap
AttributeMapWithIdentity	set(int index, AttributeInfo info)
int	size() Return the number of attributes in the map.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.saxon.om.AttributeMap

apply, fromList, getValue, put, remove, verify

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

size

public int size()

Return the number of attributes in the map.

Specified by:

size in interface AttributeMap

Returns:

The number of attributes in the map.

iterateAttributes

public AxisIterator iterateAttributes(ElementImpl owner)

get

public AttributeInfo get(NodeName name)

Description copied from interface: AttributeMap

Get the attribute with a given name, if it exists

Specified by:

get in interface AttributeMap

Parameters:

name - the name of the required attribute

Returns:

the required attribute if it exists

get

public AttributeInfo get(java.lang.String uri,
                         java.lang.String local)

Description copied from interface: AttributeMap

Get the attribute with a given name, if it exists

Specified by:

get in interface AttributeMap

Parameters:

uri - the namespace part of the name of the required attribute

local - the local part of the name of the required attribute

Returns:

the required attribute if it exists

getIndex

public int getIndex(java.lang.String uri,
                    java.lang.String local)

set

public AttributeMapWithIdentity set(int index,
                                    AttributeInfo info)

add

public AttributeMapWithIdentity add(AttributeInfo info)

remove

public AttributeMapWithIdentity remove(int index)

Remove an existing attribute, to create a new AttributeMap

Parameters:

index - the index of the attribute to be removed (if it exists)

Returns:

a new attribute map in which the specified attribute is marked as deleted.

getByFingerprint

public AttributeInfo getByFingerprint(int fingerprint,
                                      NamePool namePool)

Specified by:

getByFingerprint in interface AttributeMap

iterator

public java.util.Iterator<AttributeInfo> iterator()

Specified by:

iterator in interface java.lang.Iterable<AttributeInfo>

asList

public java.util.List<AttributeInfo> asList()

Description copied from interface: AttributeMap

Get the contents of the AttributeMap as a list of AttributeInfo objects.

The order of the returned list must be consistent with document order, with the order of the attribute axis, and with position-based retrieval of individual AttributeInfo objects; multiple calls are not required to return the same list, but they must be consistent in their ordering.

Modifying the returned list has no effect on the AttributeMap

Specified by:

asList in interface AttributeMap

Returns:

a list of attributes in the AttributeMap

itemAt

public AttributeInfo itemAt(int index)

Description copied from interface: AttributeMap

Get the AttributeInfo with a given index.

Specified by:

itemAt in interface AttributeMap

Parameters:

index - the index position, zero-based. The order of index positions of attributes in an attribute map reflects document order.

Returns:

the AttributeInfo at the given position. In an immutable tree the result will always be equivalent to calling asList().get(index). However, if the tree has been modified, then the index values of the attributes may not be contiguous.