org.apache.xerces.dom
Class DeferredEntityImpl

java.lang.Object
  |
  +--org.apache.xerces.dom.NodeImpl
        |
        +--org.apache.xerces.dom.ChildNode
              |
              +--org.apache.xerces.dom.ParentNode
                    |
                    +--org.apache.xerces.dom.EntityImpl
                          |
                          +--org.apache.xerces.dom.DeferredEntityImpl
All Implemented Interfaces:
java.lang.Cloneable, DeferredNode, Entity, EventTarget, Node, NodeList, java.io.Serializable

public class DeferredEntityImpl
extends EntityImpl
implements DeferredNode

Entity nodes hold the reference data for an XML Entity -- either parsed or unparsed. The nodeName (inherited from Node) will contain the name (if any) of the Entity. Its data will be contained in the Entity's children, in exactly the structure which an EntityReference to this name will present within the document's body.

Note that this object models the actual entity, _not_ the entity declaration or the entity reference.

An XML processor may choose to completely expand entities before the structure model is passed to the DOM; in this case, there will be no EntityReferences in the DOM tree.

Quoting the 10/01 DOM Proposal,

"The DOM Level 1 does not support editing Entity nodes; if a user wants to make changes to the contents of an Entity, every related EntityReference node has to be replaced in the structure model by a clone of the Entity's contents, and then the desired changes must be made to each of those clones instead. All the descendants of an Entity node are readonly."
I'm interpreting this as: It is the parser's responsibilty to call the non-DOM operation setReadOnly(true,true) after it constructs the Entity. Since the DOM explicitly decided not to deal with this, _any_ answer will involve a non-DOM operation, and this is the simplest solution.

Since:
PR-DOM-Level-1-19980818.
Version:
 
See Also:
Serialized Form

Field Summary
protected  int fNodeIndex
          Node index.
 
Fields inherited from class org.apache.xerces.dom.EntityImpl
encoding, name, notationName, publicId, systemId, version
 
Fields inherited from class org.apache.xerces.dom.ParentNode
fCachedChild, fCachedChildIndex, fCachedLength, firstChild, ownerDocument
 
Fields inherited from class org.apache.xerces.dom.ChildNode
nextSibling, previousSibling
 
Fields inherited from class org.apache.xerces.dom.NodeImpl
ELEMENT_DEFINITION_NODE, FIRSTCHILD, flags, HASSTRING, IGNORABLEWS, OWNED, ownerNode, READONLY, SPECIFIED, SYNCCHILDREN, SYNCDATA, UNNORMALIZED
 
Fields inherited from interface org.w3c.dom.Node
ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE
 
Method Summary
 int getNodeIndex()
          Returns the node index.
protected  void synchronizeChildren()
          Synchronize the children.
protected  void synchronizeData()
          Synchronize the entity data.
 
Methods inherited from class org.apache.xerces.dom.EntityImpl
cloneNode, getEncoding, getNodeName, getNodeType, getNotationName, getPublicId, getSystemId, getVersion, setEncoding, setNotationName, setPublicId, setSystemId, setVersion
 
Methods inherited from class org.apache.xerces.dom.ParentNode
getChildNodes, getChildNodesUnoptimized, getFirstChild, getLastChild, getLength, getOwnerDocument, hasChildNodes, insertBefore, item, normalize, removeChild, replaceChild, setReadOnly
 
Methods inherited from class org.apache.xerces.dom.ChildNode
getNextSibling, getParentNode, getPreviousSibling
 
Methods inherited from class org.apache.xerces.dom.NodeImpl
addEventListener, appendChild, changed, changes, dispatchEvent, getAttributes, getLocalName, getNamespaceURI, getNodeValue, getPrefix, getReadOnly, getUserData, hasAttributes, isSupported, removeEventListener, setNodeValue, setPrefix, setUserData, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.w3c.dom.Node
appendChild, cloneNode, getAttributes, getChildNodes, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, hasAttributes, hasChildNodes, insertBefore, isSupported, normalize, removeChild, replaceChild, setNodeValue, setPrefix
 

Field Detail

fNodeIndex

protected transient int fNodeIndex
Node index.
Method Detail

getNodeIndex

public int getNodeIndex()
Returns the node index.
Specified by:
getNodeIndex in interface DeferredNode

synchronizeData

protected void synchronizeData()
Synchronize the entity data. This is special because of the way that the "fast" version stores the information.
Overrides:
synchronizeData in class NodeImpl

synchronizeChildren

protected void synchronizeChildren()
Synchronize the children.
Overrides:
synchronizeChildren in class ParentNode


Copyright 1999-2001 Apache XML Project. All Rights Reserved.