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Java > Open Source Codes > org > netbeans > editor > EditorState


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.editor;
21
22 import java.util.HashMap JavaDoc;
23
24 /** This singleton class is an editor state encapsulation object. Every part
25  * of the editor could store its state-holder here and it will be automatically
26  * persistent across restarts. It is intended for any state informations
27  * that are not "Settings", like the contents of the input field histories,
28  * persistent, named bookmarks or so.
29  * The implementation is just like a HashMap indexed by state-holders' names.
30  * Typical usage is <CODE>myState = EditorState.get( MY_STATE_NAME );</CODE>
31  * There is no support for state change notifications, but the inserted
32  * value objects could be singletons as well and could do its own notifications.
33  *
34  * @author Petr Nejedly
35  * @version 1.0
36  */
37 public class EditorState {
38     private static HashMap JavaDoc state = new HashMap JavaDoc();
39     
40     /** This is fixed singleton, don't need instances */
41     private EditorState() {
42     }
43   
44     /** Retrieve the object specified by the key. */
45     public static Object JavaDoc get( Object JavaDoc key ) {
46         return state.get( key );
47     }
48
49     /** Store the object under specified key */
50     public static void put( Object JavaDoc key, Object JavaDoc value ) {
51         state.put( key, value );
52     }
53     
54     public static HashMap JavaDoc getStateObject() {
55         return state;
56     }
57     
58     public static void setStateObject( HashMap JavaDoc stateObject ) {
59         state = stateObject;
60     }
61 }
62
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