org.dom4j.tree
Class DefaultAttribute

java.lang.Object
  extended byorg.dom4j.tree.AbstractNode
      extended byorg.dom4j.tree.AbstractAttribute
          extended byorg.dom4j.tree.FlyweightAttribute
              extended byorg.dom4j.tree.DefaultAttribute
All Implemented Interfaces:
Attribute, Cloneable, Node, Serializable
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 org.dom4j.tree.FlyweightAttribute
value
 
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
DefaultAttribute(Element parent, QName qname, String value)
           
DefaultAttribute(Element parent, String name, String value, Namespace namespace)
          Creates the Attribute with the specified local name, value and Namespace.
DefaultAttribute(QName qname)
           
DefaultAttribute(QName qname, String value)
           
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.
 
Method Summary
 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 org.dom4j.tree.FlyweightAttribute
getQName, getValue
 
Methods inherited from class org.dom4j.tree.AbstractAttribute
accept, asXML, createXPathResult, getData, getName, getNamespace, getNamespacePrefix, getNamespaceURI, getNodeType, getPath, getQualifiedName, getText, getUniquePath, setData, setNamespace, setText, toString, write
 
Methods inherited from class org.dom4j.tree.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 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, getStringValue, getUniquePath, hasContent, matches, numberValueOf, selectNodes, selectNodes, selectNodes, selectObject, selectSingleNode, setDocument, setName, valueOf
 

Constructor Detail

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 Detail

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

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

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


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