KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > sun > org > apache > xerces > internal > dom > DeferredAttrNSImpl


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
6  * reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. The end-user documentation included with the redistribution,
21  * if any, must include the following acknowledgment:
22  * "This product includes software developed by the
23  * Apache Software Foundation (http://www.apache.org/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
26  *
27  * 4. The names "Xerces" and "Apache Software Foundation" must
28  * not be used to endorse or promote products derived from this
29  * software without prior written permission. For written
30  * permission, please contact apache@apache.org.
31  *
32  * 5. Products derived from this software may not be called "Apache",
33  * nor may "Apache" appear in their name, without prior written
34  * permission of the Apache Software Foundation.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47  * SUCH DAMAGE.
48  * ====================================================================
49  *
50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 1999, International
53  * Business Machines, Inc., http://www.apache.org. For more
54  * information on the Apache Software Foundation, please see
55  * <http://www.apache.org/>.
56  */
57
58 /*
59  * WARNING: because java doesn't support multi-inheritance some code is
60  * duplicated. If you're changing this file you probably want to change
61  * DeferredAttrImpl.java at the same time.
62  */
63
64
65 package com.sun.org.apache.xerces.internal.dom;
66
67 /**
68  * DeferredAttrNSImpl is to AttrNSImpl, what DeferredAttrImpl is to
69  * AttrImpl.
70  * @author Andy Clark, IBM
71  * @author Arnaud Le Hors, IBM
72  * @version $Id: DeferredAttrNSImpl.java,v 1.23 2003/01/16 22:53:44 elena Exp $
73  * @see DeferredAttrImpl
74  */
75 public final class DeferredAttrNSImpl
76     extends AttrNSImpl
77     implements DeferredNode {
78
79     //
80 // Constants
81 //
82
83     /** Serialization version. */
84     static final long serialVersionUID = 6074924934945957154L;
85
86     //
87 // Data
88 //
89
90     /** Node index. */
91     protected transient int fNodeIndex;
92
93     //
94 // Constructors
95 //
96
97     /**
98      * This is the deferred constructor. Only the fNodeIndex is given here.
99      * All other data, can be requested from the ownerDocument via the index.
100      */
101     DeferredAttrNSImpl(DeferredDocumentImpl ownerDocument, int nodeIndex) {
102         super(ownerDocument, null);
103
104         fNodeIndex = nodeIndex;
105         needsSyncData(true);
106         needsSyncChildren(true);
107
108     } // <init>(DeferredDocumentImpl,int)
109
110     //
111 // DeferredNode methods
112 //
113
114     /** Returns the node index. */
115     public int getNodeIndex() {
116         return fNodeIndex;
117     }
118
119     //
120 // Protected methods
121 //
122
123     /** Synchronizes the data (name and value) for fast nodes. */
124     protected void synchronizeData() {
125
126         // no need to sync in the future
127 needsSyncData(false);
128
129         // fluff data
130 DeferredDocumentImpl ownerDocument =
131         (DeferredDocumentImpl) ownerDocument();
132         name = ownerDocument.getNodeName(fNodeIndex);
133
134         // extract prefix and local part from QName
135 int index = name.indexOf(':');
136         if (index < 0) {
137             localName = name;
138         }
139         else {
140             localName = name.substring(index + 1);
141         }
142
143         int extra = ownerDocument.getNodeExtra(fNodeIndex);
144         isSpecified((extra & SPECIFIED) != 0);
145         isIdAttribute((extra & ID) != 0);
146
147         namespaceURI = ownerDocument.getNodeURI(fNodeIndex);
148         
149         int extraNode = ownerDocument.getLastChild(fNodeIndex);
150         type = ownerDocument.getTypeInfo(extraNode);
151     } // synchronizeData()
152
153     /**
154      * Synchronizes the node's children with the internal structure.
155      * Fluffing the children at once solves a lot of work to keep
156      * the two structures in sync. The problem gets worse when
157      * editing the tree -- this makes it a lot easier.
158      */
159     protected void synchronizeChildren() {
160         DeferredDocumentImpl ownerDocument =
161             (DeferredDocumentImpl) ownerDocument();
162         ownerDocument.synchronizeChildren(this, fNodeIndex);
163     } // synchronizeChildren()
164
165 } // class DeferredAttrImpl
166
Popular Tags