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Java > Open Source Codes > nextapp > echo2 > app > table > TableCellRenderer


1 /*
2  * This file is part of the Echo Web Application Framework (hereinafter "Echo").
3  * Copyright (C) 2002-2005 NextApp, Inc.
4  *
5  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
6  *
7  * The contents of this file are subject to the Mozilla Public License Version
8  * 1.1 (the "License"); you may not use this file except in compliance with
9  * the License. You may obtain a copy of the License at
10  * http://www.mozilla.org/MPL/
11  *
12  * Software distributed under the License is distributed on an "AS IS" basis,
13  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
14  * for the specific language governing rights and limitations under the
15  * License.
16  *
17  * Alternatively, the contents of this file may be used under the terms of
18  * either the GNU General Public License Version 2 or later (the "GPL"), or
19  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
20  * in which case the provisions of the GPL or the LGPL are applicable instead
21  * of those above. If you wish to allow use of your version of this file only
22  * under the terms of either the GPL or the LGPL, and not to allow others to
23  * use your version of this file under the terms of the MPL, indicate your
24  * decision by deleting the provisions above and replace them with the notice
25  * and other provisions required by the GPL or the LGPL. If you do not delete
26  * the provisions above, a recipient may use your version of this file under
27  * the terms of any one of the MPL, the GPL or the LGPL.
28  */
29
30 package nextapp.echo2.app.table;
31
32 import java.io.Serializable JavaDoc;
33
34 import nextapp.echo2.app.Component;
35 import nextapp.echo2.app.Table;
36
37 /**
38  * Renders an <code>Object</code> contained at a specific coordinate in
39  * a <code>TableModel</code> into a <code>Component</code> instance.
40  */
41 public interface TableCellRenderer
42 extends Serializable JavaDoc {
43     
44     /**
45      * Returns a component that will be displayed at the specified coordinate
46      * in the table.
47      *
48      * @param table the <code>Table</code> for which the rendering is occurring
49      * @param value the value retrieved from the <code>TableModel</code> for the
50      * specified coordinate
51      * @param column the column index to render
52      * @param row the row index to render
53      * @return a component representation of the value (This component must
54      * be unique. Returning a single instance of a component across
55      * multiple calls to this method will result in undefined
56      * behavior.)
57      */
58     public Component getTableCellRendererComponent(Table table, Object JavaDoc value, int column, int row);
59 }
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