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Java > Open Source Codes > org > netbeans > api > java > loaders > JavaDataSupport


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.loaders;
21
22 import org.netbeans.modules.java.JavaDataLoader;
23 import org.netbeans.modules.java.JavaNode;
24 import org.openide.filesystems.FileObject;
25 import org.openide.loaders.DataObject;
26 import org.openide.loaders.DataObjectNotFoundException;
27 import org.openide.loaders.MultiDataObject;
28 import org.openide.nodes.Node;
29
30 /**
31  * This class contains helper methods necessary to write extensions
32  * of the java data support.
33  *
34  * @author Jan Pokorsky
35  */
36 public final class JavaDataSupport {
37
38     /** singleton */
39     private JavaDataSupport() {
40     }
41     
42     /**
43      * In case you write own data loader you should use this entry for the
44      * <code>.java</code> file object. The entry provides functionality like
45      * create from template.
46      * @param mdo the data object this entry will belong to
47      * @param javafile the file object for the entry
48      * @return the java entry
49      */
50     public static MultiDataObject.Entry createJavaFileEntry(MultiDataObject mdo, FileObject javafile) {
51         return new JavaDataLoader.JavaFileEntry(mdo, javafile);
52     }
53
54     /**
55      * Creates a default node for a particular java file object.
56      * @param javafile the java file object to represent
57      * @return the node
58      */
59     public static Node createJavaNode(FileObject javafile) {
60         try {
61             DataObject jdo = DataObject.find(javafile);
62             return new JavaNode(jdo, true);
63         } catch (DataObjectNotFoundException ex) {
64             throw new IllegalStateException JavaDoc(ex);
65         }
66     }
67
68 }
69
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