net.sf.saxon.tree
Class DocumentImpl

java.lang.Object
  net.sf.saxon.tree.NodeImpl
      net.sf.saxon.tree.ParentNodeImpl
          net.sf.saxon.tree.DocumentImpl

All Implemented Interfaces:

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

public final class DocumentImpl

extends net.sf.saxon.tree.ParentNodeImpl

implements DocumentInfo

A node in the XML parse tree representing the Document itself (or equivalently, the root node of the Document).

Field Summary

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, LOCAL_NAMESPACES, NO_NAMESPACES

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

EMPTY_VALUE_ARRAY

Constructor Summary

DocumentImpl()

Method Summary

void	addChild(NodeImpl node, int index) Add a child node to this node.
void	compact(int size) Compact the space used by this node
void	copy(Receiver out, int whichNamespaces, boolean copyAnnotations, int locationId) Copy this node to a given outputter
AxisIterator	enumerateChildren(NodeTest test) Get an enumeration of the children of this node
void	generateId(FastStringBuffer buffer) Get a character string that uniquely identifies this node
java.lang.String	getBaseURI() Get the base URI of this root node.
Configuration	getConfiguration() Get the configuration previously set using setConfiguration
ElementImpl	getDocumentElement() Get the root (outermost) element.
int	getDocumentNumber() Get the unique document number
DocumentInfo	getDocumentRoot() Get the root (document) node
NodeInfo	getFirstChild() Get the first child node of the element
NodeInfo	getLastChild() Get the last child node of the element
int	getLineNumber() Get the line number of this root node.
NamePool	getNamePool() Get the name pool used for the names in this document
NodeInfo	getNextSibling() Get next sibling - always null
int	getNodeKind() Return the type of node.
protected NodeImpl	getNthChild(int n) Get the nth child node of the element (numbering from 0)
NodeInfo	getPreviousSibling() Get previous sibling - always null
NodeInfo	getRoot() Get the root node
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 string value of the item as a CharSequence.
java.lang.String	getSystemId() Get the system id of this root node
java.lang.String[]	getUnparsedEntity(java.lang.String name) Get the unparsed entity with a given name
boolean	hasChildNodes() Determine if the node has any children.
NodeInfo	selectID(java.lang.String id) Get the element with a given ID.
void	setConfiguration(Configuration config) Set the Configuration that contains this document
void	setLineNumbering() Set line numbering on
void	setSystemId(java.lang.String uri) Set the system id of this node
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, getAttributeValue, getColumnNumber, getDeclaredNamespaces, getDisplayName, getFingerprint, getLocalPart, getNameCode, getNextInDocument, getParent, getPrefix, getPreviousInDocument, getPublicId, getTypeAnnotation, getTypedValue, getURI, hashCode, isSameNodeInfo, iterateAxis, iterateAxis, sendNamespaceDeclarations

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

atomize, compareOrder, equals, getAttributeValue, getDeclaredNamespaces, getDisplayName, getFingerprint, getLocalPart, getNameCode, getParent, getPrefix, getStringValue, getTypeAnnotation, getURI, hasChildNodes, hashCode, isSameNodeInfo, iterateAxis, iterateAxis, sendNamespaceDeclarations

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

getStringValueCS, getTypedValue

Field Detail

sequence

protected int sequence

Constructor Detail

DocumentImpl

public DocumentImpl()

Method Detail

setConfiguration

public void setConfiguration(Configuration config)

Set the Configuration that contains this document

getConfiguration

public Configuration getConfiguration()

Get the configuration previously set using setConfiguration

Specified by:

getConfiguration in interface NodeInfo

Overrides:

getConfiguration in class NodeImpl

getNamePool

public NamePool getNamePool()

Get the name pool used for the names in this document

Specified by:

getNamePool in interface NodeInfo

Overrides:

getNamePool in class NodeImpl

getDocumentNumber

public int getDocumentNumber()

Get the unique document number

Specified by:

getDocumentNumber in interface NodeInfo

Overrides:

getDocumentNumber in class NodeImpl

setSystemId

public void setSystemId(java.lang.String uri)

Set the system id of this node

Specified by:

setSystemId in interface javax.xml.transform.Source

Overrides:

setSystemId in class NodeImpl

getSystemId

public java.lang.String getSystemId()

Get the system id of this root node

Specified by:

getSystemId in interface NodeInfo

Overrides:

getSystemId in class NodeImpl

getBaseURI

public java.lang.String getBaseURI()

Get the base URI of this root node. For a root node the base URI is the same as the System ID.

Specified by:

getBaseURI in interface NodeInfo

Overrides:

getBaseURI in class NodeImpl

setLineNumbering

public void setLineNumbering()

Set line numbering on

getLineNumber

public int getLineNumber()

Get the line number of this root node.

Specified by:

getLineNumber in interface NodeInfo

Overrides:

getLineNumber in class NodeImpl

Returns:

0 always

getNodeKind

public final int getNodeKind()

Return the type of node.

Specified by:

getNodeKind in interface NodeInfo

Returns:

Type.DOCUMENT (always)

See Also:

Type

getNextSibling

public final NodeInfo getNextSibling()

Get next sibling - always null

Overrides:

getNextSibling in class NodeImpl

Returns:

null

getPreviousSibling

public final NodeInfo getPreviousSibling()

Get previous sibling - always null

Overrides:

getPreviousSibling in class NodeImpl

Returns:

null

getDocumentElement

public ElementImpl getDocumentElement()

Get the root (outermost) element.

Returns:

the Element node for the outermost element of the document.

getRoot

public NodeInfo getRoot()

Get the root node

Specified by:

getRoot in interface NodeInfo

Overrides:

getRoot in class NodeImpl

Returns:

the NodeInfo representing the root of this tree

getDocumentRoot

public DocumentInfo getDocumentRoot()

Get the root (document) node

Specified by:

getDocumentRoot in interface NodeInfo

Overrides:

getDocumentRoot in class NodeImpl

Returns:

the DocumentInfo representing this document

generateId

public void generateId(FastStringBuffer buffer)

Get a character string that uniquely identifies this node

Specified by:

generateId in interface NodeInfo

Overrides:

generateId in class NodeImpl

Parameters:

buffer - a buffer into which will be placed a string based on the document number

selectID

public NodeInfo selectID(java.lang.String id)

Get the element with a given ID.

Specified by:

selectID in interface DocumentInfo

Parameters:

id - The unique ID of the required element, previously registered using registerID()

Returns:

The NodeInfo for the given ID if one has been registered, otherwise null.

getUnparsedEntity

public java.lang.String[] getUnparsedEntity(java.lang.String name)

Get the unparsed entity with a given name

Specified by:

getUnparsedEntity in interface DocumentInfo

Parameters:

name - the name of the entity

Returns:

if the entity exists, return an array of two Strings, the first holding the system ID of the entity, the second holding the public ID if there is one, or null if not. If the entity does not exist, return null. * @return the URI of the entity if there is one, or empty string if not

copy

public void copy(Receiver out,
                 int whichNamespaces,
                 boolean copyAnnotations,
                 int locationId)
          throws XPathException

Copy this node to a given outputter

Specified by:

copy in interface NodeInfo

Parameters:

out - the Receiver to which the node should be copied

whichNamespaces - in the case of an element, controls which namespace nodes should be copied. Values are NodeInfo.NO_NAMESPACES, NodeInfo.LOCAL_NAMESPACES, NodeInfo.ALL_NAMESPACES

copyAnnotations - indicates whether the type annotations of element and attribute nodes should be copied

locationId - If non-zero, identifies the location of the instruction that requested this copy. If zero, indicates that the location information for the original node is to be copied; in this case the Receiver must be a LocationCopier

Throws:

XPathException

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.

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

Overrides:

getStringValueCS in class NodeImpl

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