Package net.sf.saxon.om

Class EmptyAttributeMap

java.lang.Object

net.sf.saxon.om.EmptyAttributeMap

All Implemented Interfaces:

java.lang.Iterable<AttributeInfo>, AttributeMap

public class EmptyAttributeMap
extends java.lang.Object
implements AttributeMap

An implementation of AttributeMap representing an empty AttributeMap

Method Summary

Modifier and Type	Method	Description
AttributeMap	apply(java.util.function.Function<AttributeInfo,AttributeInfo> mapper)	Apply a function to every attribute in an attribute map, returning a new attribute map
AttributeInfo	get(NamespaceUri uri, java.lang.String local)	Get the attribute with a given name, if it exists
AttributeInfo	get(NodeName name)	Get the attribute with a given name, if it exists
AttributeInfo	getByFingerprint(int fingerprint, NamePool namePool)
static EmptyAttributeMap	getInstance()
AttributeInfo	itemAt(int index)	Get the AttributeInfo with a given index.
java.util.Iterator<AttributeInfo>	iterator()
AttributeMap	put(AttributeInfo att)	Replace or add an attribute, to create a new AttributeMap
AttributeMap	remove(NodeName name)	Remove an existing attribute, to create a new AttributeMap
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

asList, getValue, getValue, verify

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

getInstance

public static EmptyAttributeMap getInstance()

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.

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(NamespaceUri 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

getByFingerprint

public AttributeInfo getByFingerprint(int fingerprint,
                                      NamePool namePool)

Specified by:

getByFingerprint in interface AttributeMap

put

public AttributeMap put(AttributeInfo att)

Description copied from interface: AttributeMap

Replace or add an attribute, to create a new AttributeMap

Specified by:

put in interface AttributeMap

Parameters:

att - the attribute to be added or replaced

Returns:

the new AttributeMap

remove

public AttributeMap remove(NodeName name)

Description copied from interface: AttributeMap

Remove an existing attribute, to create a new AttributeMap

Specified by:

remove in interface AttributeMap

Parameters:

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

Returns:

a new attribute map in which the specified attribute is omitted. If the attribute map contains no attribute with the given name, the input attribute map (or one equivalent to it) is returned unchanged

iterator

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

Specified by:

iterator in interface java.lang.Iterable<AttributeInfo>

apply

public AttributeMap apply(java.util.function.Function<AttributeInfo,AttributeInfo> mapper)

Description copied from interface: AttributeMap

Apply a function to every attribute in an attribute map, returning a new attribute map

Specified by:

apply in interface AttributeMap

Parameters:

mapper - the mapping function to be applied to each attribute in the attribute map

Returns:

the attribute containing the attributes after the mapping function has been applied

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.