Class DefaultAttribute

java.lang.Object

org.dom4j.tree.AbstractNode

org.dom4j.tree.AbstractAttribute

org.dom4j.tree.FlyweightAttribute

org.dom4j.tree.DefaultAttribute

All Implemented Interfaces:

Serializable, Cloneable, Attribute, Node

Direct Known Subclasses:

DOMAttribute, UserDataAttribute

public class DefaultAttribute
extends FlyweightAttribute

DefaultAttribute implements a doubly linked node which supports the parent relationship and is mutable.

Version:

$Revision: 1.13 $

Author:

James Strachan

See Also:

• Serialized Form

Field Summary

Fields inherited from class FlyweightAttribute

value

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
DefaultAttribute(String name, String value)	Creates the Attribute with the specified local name and value.
DefaultAttribute(String name, String value, Namespace namespace)	Creates the Attribute with the specified local name, value and Namespace.
DefaultAttribute(Element parent, String name, String value, Namespace namespace)	Creates the Attribute with the specified local name, value and Namespace.
DefaultAttribute(Element parent, QName qname, String value)
DefaultAttribute(QName qname)
DefaultAttribute(QName qname, String value)

Method Summary

Modifier and Type	Method	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	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	setValue(String value)	Sets the value of this attribute or this method will throw an UnsupportedOperationException if it is read-only.
boolean	supportsParent()	supportsParent returns true if this node supports the parent relationship.

Methods inherited from class FlyweightAttribute

getQName, getValue

Methods inherited from class AbstractAttribute

accept, asXML, createXPathResult, getData, getName, getNamespace, getNamespacePrefix, getNamespaceURI, getNodeType, getPath, getQualifiedName, getText, getUniquePath, setData, setNamespace, setText, toString, write

Methods inherited from class AbstractNode

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

Methods inherited from class Object

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

Methods inherited from interface Node

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

Constructor Details

DefaultAttribute

public DefaultAttribute(QName qname)

DefaultAttribute

public DefaultAttribute(QName qname,
 String value)

DefaultAttribute

public DefaultAttribute(Element parent,
 QName qname,
 String value)

DefaultAttribute

public DefaultAttribute(String name,
 String value)

Creates the Attribute with the specified local name and value.

Parameters:

name - is the name of the attribute

value - is the value of the attribute

DefaultAttribute

public DefaultAttribute(String name,
 String value,
 Namespace namespace)

Creates the Attribute with the specified local name, value and Namespace.

Parameters:

name - is the name of the attribute

value - is the value of the attribute

namespace - is the namespace of the attribute

DefaultAttribute

public DefaultAttribute(Element parent,
 String name,
 String value,
 Namespace namespace)

Creates the Attribute with the specified local name, value and Namespace.

Parameters:

parent - is the parent element

name - is the name of the attribute

value - is the value of the attribute

namespace - is the namespace of the attribute

Method Details

setValue

public void setValue(String value)

Description copied from interface: Attribute

Sets the value of this attribute or this method will throw an UnsupportedOperationException if it is read-only.

Specified by:

setValue in interface Attribute

Overrides:

setValue in class AbstractAttribute

Parameters:

value - is the new value of this attribute

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.