tablemap.java

sun公司的petstore,一个J2ee的示例应用程序.

/*
 * Copyright 2002 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
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 *
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 * for use in the design, construction, operation or maintenance of
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/**
 * In a chain of data manipulators some behaviour is common. TableMap
 * provides most of this behavour and can be subclassed by filters
 * that only need to override a handful of specific methods. TableMap
 * implements TableModel by routing all requests to its model, and
 * TableModelListener by routing all events to its listeners. Inserting
 * a TableMap which has not been subclassed into a chain of table filters
 * should have no effect.
 *
 * @version 1.7 04/23/99
 * @author Philip Milne */
package com.sun.j2ee.blueprints.admin.client;

import javax.swing.table.*;
import javax.swing.event.TableModelListener;
import javax.swing.event.TableModelEvent;

public class TableMap extends DefaultTableModel implements TableModelListener
{
    protected TableModel model;

    public TableModel  getModel() {
        return model;
    }

    public void  setModel(TableModel model) {
        this.model = model;
        model.addTableModelListener(this);
    }

    // By default, Implement TableModel by forwarding all messages
    // to the model.

    public Object getValueAt(int aRow, int aColumn) {
        return model.getValueAt(aRow, aColumn);
    }

    public void setValueAt(Object aValue, int aRow, int aColumn) {
        model.setValueAt(aValue, aRow, aColumn);
    }

    public int getRowCount() {
        return (model == null) ? 0 : model.getRowCount();
    }

    public int getColumnCount() {
        return (model == null) ? 0 : model.getColumnCount();
    }

    public String getColumnName(int aColumn) {
        return model.getColumnName(aColumn);
    }

    public Class getColumnClass(int aColumn) {
        return model.getColumnClass(aColumn);
    }

    public boolean isCellEditable(int row, int column) {
         return model.isCellEditable(row, column);
    }
//
// Implementation of the TableModelListener interface,
//

    // By default forward all events to all the listeners.
    public void tableChanged(TableModelEvent e) {
        fireTableChanged(e);
    }
}