KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > netbeans > modules > javacore > jmiimpl > javamodel > NullLiteralImpl


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19 package org.netbeans.modules.javacore.jmiimpl.javamodel;
20
21 import java.util.List JavaDoc;
22 import org.netbeans.jmi.javamodel.Element;
23 import org.netbeans.jmi.javamodel.JavaModelPackage;
24 import org.netbeans.jmi.javamodel.NullLiteral;
25 import org.netbeans.mdr.storagemodel.StorableObject;
26
27 /**
28  *
29  * @author Martin Matula
30  */
31 public abstract class NullLiteralImpl extends LiteralImpl implements NullLiteral {
32
33     /** Creates a new instance of NullLiteralImpl */
34     public NullLiteralImpl(StorableObject o) {
35         super(o);
36     }
37
38     public String JavaDoc getSourceText() {
39         String JavaDoc origElem;
40         if ((origElem = checkChange()) != null)
41             return origElem;
42         return "null"; // NOI18N
43 }
44     
45     public void getDiff(List JavaDoc diff) {
46         // never called
47 }
48
49     public Element duplicate(JavaModelPackage targetExtent) {
50         return targetExtent.getNullLiteral().createNullLiteral();
51     }
52 }
53
Popular Tags