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Java > Open Source Codes > org > netbeans > modules > refactoring > plugins > TreeElementFactoryImpl


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.modules.refactoring.plugins;
21
22 import java.util.Map JavaDoc;
23 import java.util.WeakHashMap JavaDoc;
24 import org.netbeans.modules.refactoring.api.RefactoringElement;
25 import org.netbeans.modules.refactoring.spi.ui.TreeElement;
26 import org.netbeans.modules.refactoring.spi.ui.TreeElementFactoryImplementation;
27 import org.openide.filesystems.FileObject;
28
29
30 /**
31  *
32  * @author Jan Becicka
33  */
34 public class TreeElementFactoryImpl implements TreeElementFactoryImplementation {
35
36     private Map JavaDoc<Object JavaDoc, TreeElement> map = new WeakHashMap JavaDoc();
37
38     public TreeElement getTreeElement(Object JavaDoc o) {
39         TreeElement result = map.get(o);
40         if (result!= null)
41             return result;
42         if (o instanceof RefactoringElement) {
43             if (((RefactoringElement) o).getComposite() instanceof FileObject) {
44                 result = new RefactoringTreeElement((RefactoringElement) o);
45             }
46         }
47         if (result != null) {
48             map.put(o, result);
49         }
50         return result;
51     }
52
53     public void cleanUp() {
54         map.clear();
55     }
56 }
57
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