package com.opensymphony.workflow.designer.model;import java.util.*;import javax.swing.table.AbstractTableModel;/** * @author Andrea Capitani (a.capitani@leonardomultimedia.it) * Date: Nov 19, 2004 * Time: 11:45:51 AM */public abstract class MapTableModel extends AbstractTableModel{  protected Map map = new HashMap();  public int getRowCount()  {    return map == null ? 0 : map.size();  }  public void setMap(Map m)	{		this.map = m;		fireTableDataChanged();	}		public Map getMap()	{		return Collections.unmodifiableMap(map);	}  public void add(Object key, Object value)  {    map.put(key, value);    fireTableDataChanged();  }  public void remove(Object key)  {    map.remove(key);    fireTableDataChanged();  }  public Object get(Object key)  {    return map.get(key);  }}