org.dom4j.tree
Class DefaultNamespace

java.lang.Object
  org.dom4j.tree.AbstractNode
      org.dom4j.Namespace
          org.dom4j.tree.DefaultNamespace

All Implemented Interfaces:

java.lang.Cloneable, Node, java.io.Serializable

Direct Known Subclasses:

DOMNamespace

public class DefaultNamespace

extends Namespace

DefaultNamespace implements a doubly linked node which supports the parent relationship and is mutable. It is useful when returning results from XPath expressions.

Version:

$Revision: 1.13 $

Author:

James Strachan

See Also:

Serialized Form

Field Summary

Fields inherited from class org.dom4j.Namespace

cache, NO_NAMESPACE, XML_NAMESPACE

Fields inherited from class org.dom4j.tree.AbstractNode

NODE_TYPE_NAMES

Fields inherited from interface org.dom4j.Node

ANY_NODE, ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_NODE, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_REFERENCE_NODE, MAX_NODE_TYPE, NAMESPACE_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE, UNKNOWN_NODE

Constructor Summary

DefaultNamespace(Element parent, java.lang.String prefix, java.lang.String uri)

DefaultNamespace(java.lang.String prefix, java.lang.String uri)

Method Summary

protected int	createHashCode() Factory method to create the hashcode allowing derived classes to change the behaviour
boolean	equals(java.lang.Object object) Implements an identity based comparsion using the parent element as well as the prefix and URI
Element	getParent() getParent returns the parent Element if this node supports the parent relationship or null if it is the root element or does not support the parent relationship.
void	setParent(Element parent) setParent sets the parent relationship of this node if the parent relationship is supported or does nothing if the parent relationship is not supported.
boolean	supportsParent() supportsParent returns true if this node supports the parent relationship.

Methods inherited from class org.dom4j.Namespace

accept, asXML, createXPathResult, get, get, getNodeType, getPath, getPrefix, getStringValue, getText, getUniquePath, getURI, getXPathNameStep, hashCode, toString

Methods inherited from class org.dom4j.tree.AbstractNode

asXPathResult, clone, createPattern, createXPath, createXPathFilter, detach, getDocument, getDocumentFactory, getName, getNodeTypeName, getPath, getUniquePath, hasContent, isReadOnly, matches, numberValueOf, selectNodes, selectNodes, selectNodes, selectObject, selectSingleNode, setDocument, setName, setText, valueOf, write

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DefaultNamespace

public DefaultNamespace(java.lang.String prefix,
                        java.lang.String uri)

Parameters:

prefix - is the prefix for this namespace

uri - is the URI for this namespace

DefaultNamespace

public DefaultNamespace(Element parent,
                        java.lang.String prefix,
                        java.lang.String uri)

Parameters:

parent - is the parent element

prefix - is the prefix for this namespace

uri - is the URI for this namespace

Method Detail

createHashCode

protected int createHashCode()

Description copied from class: Namespace

Factory method to create the hashcode allowing derived classes to change the behaviour

Overrides:

createHashCode in class Namespace

Returns:

the hash code based on the qualified name and the URI of the namespace and the hashCode() of the parent element.

equals

public boolean equals(java.lang.Object object)

Implements an identity based comparsion using the parent element as well as the prefix and URI

Overrides:

equals in class Namespace

getParent

public Element getParent()

Description copied from interface: Node

getParent returns the parent Element if this node supports the parent relationship or null if it is the root element or does not support the parent relationship.

This method is an optional feature and may not be supported for all Node implementations.

Specified by:

getParent in interface Node

Overrides:

getParent in class AbstractNode

setParent

public void setParent(Element parent)

Description copied from interface: Node

setParent sets the parent relationship of this node if the parent relationship is supported or does nothing if the parent relationship is not supported.

This method should only be called from inside an Element implementation method and is not intended for general use.

Specified by:

setParent in interface Node

Overrides:

setParent in class AbstractNode

supportsParent

public boolean supportsParent()

Description copied from interface: Node

supportsParent returns true if this node supports the parent relationship.

Some XML tree implementations are singly linked and only support downward navigation through children relationships. The default case is that both parent and children relationships are supported though for memory and performance reasons the parent relationship may not be supported.

Specified by:

supportsParent in interface Node

Overrides:

supportsParent in class AbstractNode