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1   /*
2    * Copyright 2002,2004 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.jelly.tags.swing;
17  
18  import javax.swing.JTable;
19  
20  import org.apache.commons.jelly.JellyTagException;
21  import org.apache.commons.jelly.tags.core.UseBeanTag;
22  import org.apache.commons.jelly.tags.swing.model.ExpressionTableModel;
23  
24  /***
25   * Creates a default TableModel using nested tableColumn tags.
26   *
27   * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
28   * @version $Revision: 155420 $
29   */
30  public class TableModelTag extends UseBeanTag {
31  
32      public ExpressionTableModel getTableModel() {
33          return (ExpressionTableModel) getBean();
34      }
35  
36  
37      // Implementation methods
38      //-------------------------------------------------------------------------
39      protected void processBean(String var, Object bean) throws JellyTagException {
40          super.processBean(var, bean);
41  
42          ComponentTag tag = (ComponentTag) findAncestorWithClass( ComponentTag.class );
43          if ( tag == null ) {
44              throw new JellyTagException( "This tag must be nested within a JellySwing <table> tag" );
45          }
46          ExpressionTableModel model = getTableModel();
47          model.setContext(context);
48  
49          Object component = tag.getComponent();
50          if (component instanceof JTable) {
51              JTable table = (JTable) component;
52              table.setModel(model);
53          }
54          else {
55              throw new JellyTagException( "This tag must be nested within a JellySwing <table> tag" );
56          }
57      }
58  
59      protected Class getDefaultClass() {
60          return ExpressionTableModel.class;
61      }
62  }
63