platform/lang-impl/src/com/intellij/codeInsight/template/impl/TableMap.java

/*
 * Copyright 2000-2009 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.intellij.codeInsight.template.impl;

/**
 * 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 1.4 12/17/97
 * @author Philip Milne */

import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;

public class TableMap extends AbstractTableModel 
                      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. 

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

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

    @Override
    public int getColumnCount() {
        return (model == null) ? 0 : model.getColumnCount(); 
    }
        
    @Override
    public String getColumnName(int aColumn) {
        return model.getColumnName(aColumn); 
    }

    @Override
    public Class getColumnClass(int aColumn) {
        return model.getColumnClass(aColumn); 
    }
        
    @Override
    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. 
    @Override
    public void tableChanged(TableModelEvent e) {
        fireTableChanged(e);
    }
}