/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 1999-2002,2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.sun.org.apache.xerces.internal.dom;
/**
* 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.
* <P>
* Note that this object models the actual entity, _not_ the entity
* declaration or the entity reference.
* <P>
* 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.
* <P>
* Quoting the 10/01 DOM Proposal,
* <BLOCKQUOTE>
* "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."
* </BLOCKQUOTE>
* 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.
*
* @xerces.internal
*
* @since PR-DOM-Level-1-19980818.
*/
public class DeferredEntityImpl
extends EntityImpl
implements DeferredNode {
//
// Constants
//
/** Serialization version. */
static final long serialVersionUID = 4760180431078941638L;
//
// Data
//
/** Node index. */
protected transient int fNodeIndex;
//
// Constructors
//
/**
* This is the deferred constructor. Only the fNodeIndex is given here.
* All other data, can be requested from the ownerDocument via the index.
*/
DeferredEntityImpl(DeferredDocumentImpl ownerDocument, int nodeIndex) {
super(ownerDocument, null);
fNodeIndex = nodeIndex;
needsSyncData(true);
needsSyncChildren(true);
} // <init>(DeferredDocumentImpl,int)
//
// DeferredNode methods
//
/** Returns the node index. */
public int getNodeIndex() {
return fNodeIndex;
}
//
// Protected methods
//
/**
* Synchronize the entity data. This is special because of the way
* that the "fast" version stores the information.
*/
protected void synchronizeData() {
// no need to sychronize again
needsSyncData(false);
// get the node data
DeferredDocumentImpl ownerDocument =
(DeferredDocumentImpl)this.ownerDocument;
name = ownerDocument.getNodeName(fNodeIndex);
// get the entity data
publicId = ownerDocument.getNodeValue(fNodeIndex);
systemId = ownerDocument.getNodeURI(fNodeIndex);
int extraDataIndex = ownerDocument.getNodeExtra(fNodeIndex);
ownerDocument.getNodeType(extraDataIndex);
notationName = ownerDocument.getNodeName(extraDataIndex);
// encoding and version DOM L3
version = ownerDocument.getNodeValue(extraDataIndex);
encoding = ownerDocument.getNodeURI(extraDataIndex);
// baseURI, actualEncoding DOM L3
int extraIndex2 = ownerDocument.getNodeExtra(extraDataIndex);
baseURI = ownerDocument.getNodeName(extraIndex2);
inputEncoding = ownerDocument.getNodeValue(extraIndex2);
} // synchronizeData()
/** Synchronize the children. */
protected void synchronizeChildren() {
// no need to synchronize again
needsSyncChildren(false);
isReadOnly(false);
DeferredDocumentImpl ownerDocument =
(DeferredDocumentImpl) ownerDocument();
ownerDocument.synchronizeChildren(this, fNodeIndex);
setReadOnly(true, true);
} // synchronizeChildren()
} // class DeferredEntityImpl