net.sf.saxon.tree
Class NamespaceImpl

java.lang.Object
  net.sf.saxon.om.AbstractNode
      net.sf.saxon.tree.NodeImpl
          net.sf.saxon.tree.NamespaceImpl

All Implemented Interfaces:

DOMLocator, Source, SourceLocator, Item, NodeInfo, Node

final class NamespaceImpl
extends NodeImpl

A node in the XML parse tree representing a Namespace. Note that this is generated only "on demand", when the namespace axis is expanded.

Version:

3 November 1999

Author:

Field Summary

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

parent

Fields inherited from class net.sf.saxon.om.AbstractNode

NODE_LETTER

Fields inherited from interface org.w3c.dom.Node

ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE

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

ALL_NAMESPACES, LOCAL_NAMESPACES, NO_NAMESPACES

Constructor Summary

NamespaceImpl(ElementImpl element, int nsCode, int index)
Construct a Namespace node

Method Summary

void	copy(Receiver out, int whichNamespaces) Copy this node to a given outputter
String	generateId() Get sequential key.
String	getBaseURI() Get the base URI for the node.
String	getLocalPart() Get the prefix of the namespace that this node relates to.
int	getNameCode() Get the namecode for this name.
int	getNamespaceCode() Get the namespace code for this prefix/uri pair.
NodeImpl	getNextInDocument(NodeImpl anchor) Get the next node in document order (skipping namespace nodes)
Node	getNextSibling() Get next sibling - not defined for namespace nodes
int	getNodeKind() Return the type of node.
String	getNodeName() Get the name of this node, following the DOM rules (which aren't actually defined for Namespace nodes...)
NodeImpl	getPreviousInDocument() Get the previous node in document order (skipping namespace nodes)
Node	getPreviousSibling() Get previous sibling - not defined for namespace nodes
protected long	getSequenceNumber() Get the node sequence number (in document order).
String	getStringValue() Return the string value of the node.
boolean	isSameNode(NodeInfo other) Determine whether this is the same node as another node

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

compareOrder, copy, getAttributeValue, getDisplayName, getDocumentElement, getDocumentRoot, getFingerprint, getFirstChild, getLastChild, getLineNumber, getNamePool, getOriginatingNode, getParent, getPrefix, getRoot, getSystemId, getURI, hasAttributes, hasChildNodes, iterateAxis, iterateAxis, outputNamespaceNodes, setSystemId

Methods inherited from class net.sf.saxon.om.AbstractNode

appendChild, appendData, cloneNode, createAttribute, createAttributeNS, createCDATASection, createComment, createDocumentFragment, createElement, createElementNS, createEntityReference, createProcessingInstruction, createTextNode, deleteData, disallowUpdate, getAttribute, getAttributeNode, getAttributeNodeNS, getAttributeNS, getAttributes, getChildNodes, getColumnNumber, getData, getDoctype, getDocumentNumber, getElementById, getElementsByTagName, getElementsByTagNameNS, getImplementation, getLength, getLocalName, getName, getNamespaceURI, getNodeType, getNodeValue, getOwnerDocument, getOwnerElement, getParentNode, getPublicId, getSpecified, getTagName, getTypeAnnotation, getTypedValue, getValue, hasAttribute, hasAttributeNS, importNode, insertBefore, insertData, isSupported, normalize, removeAttribute, removeAttributeNode, removeAttributeNS, removeChild, replaceChild, replaceData, setAttributeNode, setAttributeNodeNS, setAttributeNS, setData, setNodeValue, setPrefix, setValue, splitText, substringData, supports

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.w3c.dom.Node

compareDocumentPosition, getFeature, getTextContent, getUserData, isDefaultNamespace, isEqualNode, isSameNode, lookupNamespaceURI, lookupPrefix, setTextContent, setUserData

Constructor Detail

NamespaceImpl

public NamespaceImpl(ElementImpl element,
                     int nsCode,
                     int index)

Construct a Namespace node

Parameters:

element - The element owning the namespace node

nsCode - The namespace code

index - Integer identifying this namespace node among the nodes for its parent

Method Detail

getNameCode

public int getNameCode()

Get the namecode for this name. Not the same as the namespace code!

Specified by:

getNameCode in interface NodeInfo

Overrides:

getNameCode in class NodeImpl

Returns:

an integer name code, which may be used to obtain the actual node name from the name pool

See Also:

allocate, getFingerprint

getNamespaceCode

public int getNamespaceCode()

Get the namespace code for this prefix/uri pair. Not the same as the name code!

isSameNode

public boolean isSameNode(NodeInfo other)

Determine whether this is the same node as another node

Specified by:

isSameNode in interface NodeInfo

Overrides:

isSameNode in class NodeImpl

Parameters:

other - the node to be compared with this node

Returns:

true if this Node object and the supplied Node object represent the same node in the tree.

getLocalPart

public String getLocalPart()

Get the prefix of the namespace that this node relates to.

Specified by:

getLocalPart in interface NodeInfo

Overrides:

getLocalPart in class NodeImpl

Returns:

the namespace prefix, or "" for the default namespace

getNodeKind

public final int getNodeKind()

Return the type of node.

Returns:

Type.NAMESPACE

See Also:

Type

getStringValue

public String getStringValue()

Return the string value of the node.

Specified by:

getStringValue in interface Item

Specified by:

getStringValue in interface NodeInfo

Specified by:

getStringValue in class AbstractNode

Returns:

the namespace uri

getNodeName

public String getNodeName()

Get the name of this node, following the DOM rules (which aren't actually defined for Namespace nodes...)

Specified by:

getNodeName in interface Node

Overrides:

getNodeName in class AbstractNode

Returns:

the namespace prefix

getNextSibling

public Node getNextSibling()

Get next sibling - not defined for namespace nodes

Specified by:

getNextSibling in interface Node

Overrides:

getNextSibling in class NodeImpl

Returns:

The next sibling node of the required type. Returns null if the current node is the last child of its parent.

getPreviousSibling

public Node getPreviousSibling()

Get previous sibling - not defined for namespace nodes

Specified by:

getPreviousSibling in interface Node

Overrides:

getPreviousSibling in class NodeImpl

Returns:

The previous sibling node. Returns null if the current node is the first child of its parent.

getPreviousInDocument

public NodeImpl getPreviousInDocument()

Get the previous node in document order (skipping namespace nodes)

Overrides:

getPreviousInDocument in class NodeImpl

Returns:

the previous node in the document, or null if there is no such node

getNextInDocument

public NodeImpl getNextInDocument(NodeImpl anchor)

Get the next node in document order (skipping namespace nodes)

Overrides:

getNextInDocument in class NodeImpl

Returns:

the next node in the document, or null if there is no such node

getBaseURI

public String getBaseURI()

Get the base URI for the node. In XPath 2.0, the base URI of a namespace node is (), which we represent as null.

Specified by:

getBaseURI in interface NodeInfo

Specified by:

getBaseURI in interface Node

Overrides:

getBaseURI in class NodeImpl

Returns:

the base URI of the node

generateId

public String generateId()

Get sequential key. Returns key of owning element with the namespace prefix as a suffix

Specified by:

generateId in interface NodeInfo

Overrides:

generateId in class NodeImpl

Returns:

a string.

copy

public void copy(Receiver out,
                 int whichNamespaces)
          throws TransformerException

Copy this node to a given outputter

Specified by:

copy in class NodeImpl

Throws:

TransformerException

getSequenceNumber

protected 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