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Java > Open Source Codes > org > netbeans > lib > editor > bookmarks > BookmarksSpiPackageAccessor


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.lib.editor.bookmarks;
21
22 import org.netbeans.lib.editor.bookmarks.api.BookmarkList;
23 import org.netbeans.lib.editor.bookmarks.spi.BookmarkManagerSupport;
24
25
26 /**
27  * Accessor for the package-private functionality of bookmarks API.
28  *
29  * @author Miloslav Metelka
30  * @version 1.00
31  */
32
33 public abstract class BookmarksSpiPackageAccessor {
34
35     private static BookmarksSpiPackageAccessor INSTANCE;
36
37     public static BookmarksSpiPackageAccessor get() {
38         return INSTANCE;
39     }
40
41     /**
42      * Register the accessor. The method can only be called once
43      * - othewise it throws IllegalStateException.
44      *
45      * @param accessor instance.
46      */
47     public static void register(BookmarksSpiPackageAccessor accessor) {
48         if (INSTANCE != null) {
49             throw new IllegalStateException JavaDoc("Already registered"); // NOI18N
50 }
51         INSTANCE = accessor;
52     }
53     
54     /**
55      * Create bookmark manager support for the given bookmark list.
56      */
57     public abstract BookmarkManagerSupport createBookmarkManagerSupport(BookmarkList bookmarkList);
58
59 }
60
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