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Java > Open Source Codes > org > netbeans > api > java > source > transform > Change


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
20 package org.netbeans.api.java.source.transform;
21
22 import com.sun.source.tree.Tree;
23 import java.util.Map JavaDoc;
24
25 /**
26  * A map that stores one or more mappings between original (old) and
27  * replacement (new) trees.
28  */
29 public interface Change {
30     /**
31      * Returns the changed tree, or null if no change exists for the
32      * specified tree.
33      */
34     Tree getChange(Tree oldTree);
35
36     /**
37      * Returns the old tree for a specified new one, or null if no
38      * original exists for the specified tree.
39      */
40     Tree getOriginal(Tree newTree);
41
42     /**
43      * Returns true if this Change has a replacement for a specified tree.
44      */
45     boolean hasChange(Tree old);
46
47     /**
48      * Returns true if this Change has an original for a specified tree.
49      */
50     boolean hasOriginal(Tree newTree);
51     
52     /**
53      * Copies all changes into a specified Map.
54      */
55     void addToMap(Map JavaDoc<Tree,Tree> map);
56 }
57
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