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Java > Open Source Codes > org > netbeans > spi > viewmodel > TreeExpansionModel


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.spi.viewmodel;
21
22
23 /**
24  * This model controlls expansion, collapsion of nodes in tree view, and
25  * defindes default expand state for all node in it.
26  *
27  * @author Jan Jancura
28  */
29 public interface TreeExpansionModel extends Model {
30
31     /**
32      * Defines default state (collapsed, expanded) of given node.
33      *
34      * @param node a node
35      * @return default state (collapsed, expanded) of given node
36      */
37     public abstract boolean isExpanded (Object JavaDoc node)
38     throws UnknownTypeException;
39
40     /**
41      * Called when given node is expanded.
42      *
43      * @param node a expanded node
44      */
45     public abstract void nodeExpanded (Object JavaDoc node);
46     
47     /**
48      * Called when given node is collapsed.
49      *
50      * @param node a collapsed node
51      */
52     public abstract void nodeCollapsed (Object JavaDoc node);
53 }
54
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