org.dom4j.tree

Class DefaultEntity

java.lang.Object

org.dom4j.tree.AbstractNode

org.dom4j.tree.AbstractEntity

org.dom4j.tree.FlyweightEntity

org.dom4j.tree.DefaultEntity

All Implemented Interfaces:

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

Direct Known Subclasses:

DOMEntityReference

public class DefaultEntity
extends FlyweightEntity

DefaultEntity is the default Entity implementation. It is a doubly linked node which supports the parent relationship and can be modified in place.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.dom4j.tree.FlyweightEntity

name, text

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

Constructors

Constructor and Description
DefaultEntity(Element parent, java.lang.String name, java.lang.String text) Creates the Entity with the specified name and text.
DefaultEntity(java.lang.String name) Creates the Entity with the specified name
DefaultEntity(java.lang.String name, java.lang.String text) Creates the Entity with the specified name and text.

Method Summary

Modifier and Type	Method and Description
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.
boolean	isReadOnly() isReadOnly returns true if this node is read only and cannot be modified.
void	setName(java.lang.String name) Sets the text data of this node or this method will throw an UnsupportedOperationException if it is read-only.
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.
void	setText(java.lang.String text) sets the value of the entity if it is not defined yet otherwise an UnsupportedOperationException is thrown as this class is read only.
boolean	supportsParent() supportsParent returns true if this node supports the parent relationship.

Methods inherited from class org.dom4j.tree.FlyweightEntity

createXPathResult, getName, getText

Methods inherited from class org.dom4j.tree.AbstractEntity

accept, asXML, getNodeType, getPath, getStringValue, getUniquePath, toString, write

Methods inherited from class org.dom4j.tree.AbstractNode

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.dom4j.Node

asXPathResult, clone, createXPath, detach, getDocument, getNodeTypeName, getPath, getUniquePath, hasContent, matches, numberValueOf, selectNodes, selectNodes, selectNodes, selectObject, selectSingleNode, setDocument, valueOf

Constructor Detail

DefaultEntity

public DefaultEntity(java.lang.String name)

Creates the Entity with the specified name

Parameters:

name - is the name of the entity

DefaultEntity

public DefaultEntity(java.lang.String name,
                     java.lang.String text)

Creates the Entity with the specified name and text.

Parameters:

name - is the name of the entity

text - is the text of the entity

DefaultEntity

public DefaultEntity(Element parent,
                     java.lang.String name,
                     java.lang.String text)

Creates the Entity with the specified name and text.

Parameters:

parent - is the parent element

name - is the name of the entity

text - is the text of the entity

Method Detail

setName

public void setName(java.lang.String name)

Description copied from interface: Node

Sets the text data of this node or this method will throw an UnsupportedOperationException if it is read-only.

Specified by:

setName in interface Node

Overrides:

setName in class AbstractNode

Parameters:

name - is the new name of this node

setText

public void setText(java.lang.String text)

Description copied from class: FlyweightEntity

sets the value of the entity if it is not defined yet otherwise an UnsupportedOperationException is thrown as this class is read only.

Specified by:

setText in interface Node

Overrides:

setText in class FlyweightEntity

Parameters:

text - DOCUMENT ME!

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.