001: /*
002: * The Apache Software License, Version 1.1
003: *
004: *
005: * Copyright (c) 1999 The Apache Software Foundation. All rights
006: * reserved.
007: *
008: * Redistribution and use in source and binary forms, with or without
009: * modification, are permitted provided that the following conditions
010: * are met:
011: *
012: * 1. Redistributions of source code must retain the above copyright
013: * notice, this list of conditions and the following disclaimer.
014: *
015: * 2. Redistributions in binary form must reproduce the above copyright
016: * notice, this list of conditions and the following disclaimer in
017: * the documentation and/or other materials provided with the
018: * distribution.
019: *
020: * 3. The end-user documentation included with the redistribution,
021: * if any, must include the following acknowledgment:
022: * "This product includes software developed by the
023: * Apache Software Foundation (http://www.apache.org/)."
024: * Alternately, this acknowledgment may appear in the software itself,
025: * if and wherever such third-party acknowledgments normally appear.
026: *
027: * 4. The names "Xerces" and "Apache Software Foundation" must
028: * not be used to endorse or promote products derived from this
029: * software without prior written permission. For written
030: * permission, please contact apache@apache.org.
031: *
032: * 5. Products derived from this software may not be called "Apache",
033: * nor may "Apache" appear in their name, without prior written
034: * permission of the Apache Software Foundation.
035: *
036: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039: * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
040: * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043: * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044: * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045: * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046: * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047: * SUCH DAMAGE.
048: * ====================================================================
049: *
050: * This software consists of voluntary contributions made by many
051: * individuals on behalf of the Apache Software Foundation and was
052: * originally based on software copyright (c) 1999, International
053: * Business Machines, Inc., http://www.apache.org. For more
054: * information on the Apache Software Foundation, please see
055: * <http://www.apache.org/>.
056: */
057:
058: /*
059: * WARNING: because java doesn't support multi-inheritance some code is
060: * duplicated. If you're changing this file you probably want to change
061: * DeferredElementNSImpl.java at the same time.
062: */
063:
064: package org.apache.xerces.dom;
065:
066: import java.util.Enumeration;
067: import java.util.Vector;
068:
069: import org.w3c.dom.NamedNodeMap;
070:
071: import org.apache.xerces.utils.StringPool;
072:
073: /**
074: * Elements represent most of the "markup" and structure of the
075: * document. They contain both the data for the element itself
076: * (element name and attributes), and any contained nodes, including
077: * document text (as children).
078: * <P>
079: * Elements may have Attributes associated with them; the API for this is
080: * defined in Node, but the function is implemented here. In general, XML
081: * applications should retrive Attributes as Nodes, since they may contain
082: * entity references and hence be a fairly complex sub-tree. HTML users will
083: * be dealing with simple string values, and convenience methods are provided
084: * to work in terms of Strings.
085: * <P>
086: * DeferredElementImpl inherits from ElementImpl which does not support
087: * Namespaces. DeferredElementNSImpl, which inherits from ElementNSImpl, does.
088: * @see DeferredElementNSImpl
089: *
090: * @version
091: * @since PR-DOM-Level-1-19980818.
092: */
093: public class DeferredElementImpl extends ElementImpl implements
094: DeferredNode {
095:
096: //
097: // Constants
098: //
099:
100: /** Serialization version. */
101: static final long serialVersionUID = -7670981133940934842L;
102:
103: //
104: // Data
105: //
106:
107: /** Node index. */
108: protected transient int fNodeIndex;
109:
110: //
111: // Constructors
112: //
113:
114: /**
115: * This is the deferred constructor. Only the fNodeIndex is given here. All
116: * other data, can be requested from the ownerDocument via the index.
117: */
118: DeferredElementImpl(DeferredDocumentImpl ownerDoc, int nodeIndex) {
119: super (ownerDoc, null);
120:
121: fNodeIndex = nodeIndex;
122: needsSyncChildren(true);
123:
124: } // <init>(DocumentImpl,int)
125:
126: //
127: // DeferredNode methods
128: //
129:
130: /** Returns the node index. */
131: public final int getNodeIndex() {
132: return fNodeIndex;
133: }
134:
135: //
136: // Protected methods
137: //
138:
139: /** Synchronizes the data (name and value) for fast nodes. */
140: protected final void synchronizeData() {
141:
142: // no need to sync in the future
143: needsSyncData(false);
144:
145: // fluff data
146: DeferredDocumentImpl ownerDocument = (DeferredDocumentImpl) this .ownerDocument;
147:
148: // we don't want to generate any event for this so turn them off
149: boolean orig = ownerDocument.mutationEvents;
150: ownerDocument.mutationEvents = false;
151:
152: int elementTypeName = ownerDocument.getNodeName(fNodeIndex);
153: StringPool pool = ownerDocument.getStringPool();
154: name = pool.toString(elementTypeName);
155:
156: // attributes
157: setupDefaultAttributes();
158: int index = ownerDocument.getNodeValue(fNodeIndex);
159: if (index != -1) {
160: NamedNodeMap attrs = getAttributes();
161: do {
162: NodeImpl attr = (NodeImpl) ownerDocument
163: .getNodeObject(index);
164: attrs.setNamedItem(attr);
165: index = ownerDocument.getPrevSibling(index);
166: } while (index != -1);
167: }
168:
169: // set mutation events flag back to its original value
170: ownerDocument.mutationEvents = orig;
171:
172: } // synchronizeData()
173:
174: protected final void synchronizeChildren() {
175: DeferredDocumentImpl ownerDocument = (DeferredDocumentImpl) ownerDocument();
176: ownerDocument.synchronizeChildren(this , fNodeIndex);
177: } // synchronizeChildren()
178:
179: } // class DeferredElementImpl
|