net.sf.saxon.tree

Class ParentNodeImpl

java.lang.Object

net.sf.saxon.tree.NodeImpl

net.sf.saxon.tree.ParentNodeImpl

All Implemented Interfaces:

javax.xml.transform.Source, javax.xml.transform.SourceLocator, FingerprintedNode, Item, NodeInfo, ValueRepresentation

Direct Known Subclasses:

DocumentImpl, ElementImpl

abstract class ParentNodeImpl
extends NodeImpl

ParentNodeImpl is an implementation of a non-leaf node (specifically, an Element node or a Document node)

Author:

Michael H. Kay

Field Summary

Fields

Modifier and Type	Field and Description
protected int	sequence

Fields inherited from class net.sf.saxon.tree.NodeImpl

index, NODE_LETTER, parent

Fields inherited from interface net.sf.saxon.om.NodeInfo

ALL_NAMESPACES, EMPTY_NAMESPACE_LIST, IS_DTD_TYPE, IS_NILLED, LOCAL_NAMESPACES, NO_NAMESPACES

Fields inherited from interface net.sf.saxon.om.ValueRepresentation

EMPTY_VALUE_ARRAY

Constructor Summary

Constructors

Constructor and Description
ParentNodeImpl()

Method Summary

Modifier and Type	Method and Description
void	addChild(NodeImpl node, int index) Add a child node to this node.
void	compact(int size) Compact the space used by this node
AxisIterator	enumerateChildren(NodeTest test) Get an enumeration of the children of this node
NodeInfo	getFirstChild() Get the first child node of the element
NodeInfo	getLastChild() Get the last child node of the element
protected NodeImpl	getNthChild(int n) Get the nth child node of the element (numbering from 0)
protected long	getSequenceNumber() Get the node sequence number (in document order).
java.lang.String	getStringValue() Return the string-value of the node, that is, the concatenation of the character content of all descendent elements and text nodes.
java.lang.CharSequence	getStringValueCS() Get the value of the item as a CharSequence.
boolean	hasChildNodes() Determine if the node has any children.
void	useChildrenArray(NodeImpl[] array) Supply an array to be used for the array of children.

Methods inherited from class net.sf.saxon.tree.NodeImpl

atomize, compareOrder, equals, generateId, getAttributeValue, getBaseURI, getColumnNumber, getConfiguration, getDeclaredNamespaces, getDisplayName, getDocumentNumber, getDocumentRoot, getFingerprint, getLineNumber, getLocalPart, getNameCode, getNamePool, getNextInDocument, getNextSibling, getParent, getPrefix, getPreviousInDocument, getPreviousSibling, getPublicId, getRoot, getSystemId, getTypeAnnotation, getTypedValue, getURI, hashCode, isSameNodeInfo, iterateAxis, iterateAxis, sendNamespaceDeclarations, setSystemId

Methods inherited from class java.lang.Object

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

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

copy, getNodeKind

Field Detail

sequence

protected int sequence

Constructor Detail

ParentNodeImpl

ParentNodeImpl()

Method Detail

getSequenceNumber

protected final long getSequenceNumber()

Get the node sequence number (in document order). Sequence numbers are monotonic but not consecutive. In the current implementation, parent nodes (elements and roots) have a zero least-significant word, while namespaces, attributes, text nodes, comments, and PIs have the top word the same as their owner and the bottom half reflecting their relative position.

Overrides:

getSequenceNumber in class NodeImpl

hasChildNodes

public final boolean hasChildNodes()

Determine if the node has any children.

Specified by:

hasChildNodes in interface NodeInfo

Overrides:

hasChildNodes in class NodeImpl

Returns:

true if the node has any children, false if the node has no children.

enumerateChildren

public final AxisIterator enumerateChildren(NodeTest test)

Get an enumeration of the children of this node

Parameters:

test - A NodeTest to be satisfied by the child nodes, or null if all child node are to be returned

getFirstChild

public final NodeInfo getFirstChild()

Get the first child node of the element

Overrides:

getFirstChild in class NodeImpl

Returns:

the first child node of the required type, or null if there are no children

getLastChild

public final NodeInfo getLastChild()

Get the last child node of the element

Overrides:

getLastChild in class NodeImpl

Returns:

the last child of the element, or null if there are no children

getNthChild

protected final NodeImpl getNthChild(int n)

Get the nth child node of the element (numbering from 0)

Returns:

the last child of the element, or null if there is no n'th child

getStringValue

public java.lang.String getStringValue()

Return the string-value of the node, that is, the concatenation of the character content of all descendent elements and text nodes.

Returns:

the accumulated character content of the element, including descendant elements.

See Also:

Item.getStringValueCS()

getStringValueCS

public java.lang.CharSequence getStringValueCS()

Description copied from class: NodeImpl

Get the value of the item as a CharSequence. This is in some cases more efficient than the version of the method that returns a String.

Specified by:

getStringValueCS in interface Item

Specified by:

getStringValueCS in interface ValueRepresentation

Overrides:

getStringValueCS in class NodeImpl

Returns:

the string value of the item

See Also:

Item.getStringValue()

useChildrenArray

public void useChildrenArray(NodeImpl[] array)

Supply an array to be used for the array of children. For system use only.

addChild

public void addChild(NodeImpl node,
                     int index)

Add a child node to this node. For system use only. Note: normalizing adjacent text nodes is the responsibility of the caller.

compact

public void compact(int size)

Compact the space used by this node