Class DefaultNamespace

java.lang.Object

org.dom4j.tree.AbstractNode

org.dom4j.Namespace

org.dom4j.tree.DefaultNamespace

All Implemented Interfaces:

Serializable, Cloneable, Node

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: 1.16 $

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Element	parent	The parent of this node

Fields inherited from class Namespace

CACHE, NO_NAMESPACE, XML_NAMESPACE

Fields inherited from class AbstractNode

NODE_TYPE_NAMES

Fields inherited from interface 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

Constructors

Constructor	Description
DefaultNamespace(String prefix, String uri)	DOCUMENT ME!
DefaultNamespace(Element parent, String prefix, String uri)	DOCUMENT ME!

Method Summary

Modifier and Type	Method	Description
protected int	createHashCode()	DOCUMENT ME!
boolean	equals(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.
int	hashCode()	DOCUMENT ME!
boolean	isReadOnly()	isReadOnly returns true if this node is read only and cannot be modified.
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 Namespace

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

Methods inherited from class AbstractNode

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

Methods inherited from class Object

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

Field Details

parent

private Element parent

The parent of this node

Constructor Details

DefaultNamespace

public DefaultNamespace(String prefix,
 String uri)

DOCUMENT ME!

Parameters:

prefix - is the prefix for this namespace

uri - is the URI for this namespace

DefaultNamespace

public DefaultNamespace(Element parent,
 String prefix,
 String uri)

DOCUMENT ME!

Parameters:

parent - is the parent element

prefix - is the prefix for this namespace

uri - is the URI for this namespace

Method Details

createHashCode

protected int createHashCode()

DOCUMENT ME!

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(Object object)

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

Overrides:

equals in class Namespace

Parameters:

object - DOCUMENT ME!

Returns:

DOCUMENT ME!

hashCode

public int hashCode()

Description copied from class: Namespace

DOCUMENT ME!

Overrides:

hashCode in class Namespace

Returns:

the hash code based on the qualified name and the URI of the 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

Returns:

the parent of this node or null if it is the root of the tree or the parent relationship is not supported.

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

Parameters:

parent - is the new parent of this node.

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

Returns:

true if this node supports the parent relationship or false it is not supported

isReadOnly

public boolean isReadOnly()

Description copied from interface: Node

isReadOnly returns true if this node is read only and cannot be modified. Any attempt to modify a read-only Node will result in an UnsupportedOperationException being thrown.

Specified by:

isReadOnly in interface Node

Overrides:

isReadOnly in class AbstractNode

Returns:

true if this Node is read only and cannot be modified otherwise false.