operatormenu.java

一个很好的LIBSVM的JAVA源码。对于要研究和改进SVM算法的学者。可以参考。来自数据挖掘工具YALE工具包。

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2001-2004
 *      Simon Fischer, Ralf Klinkenberg, Ingo Mierswa, 
 *          Katharina Morik, Oliver Ritthoff
 *      Artificial Intelligence Unit
 *      Computer Science Department
 *      University of Dortmund
 *      44221 Dortmund,  Germany
 *  email: [e-mail]
 *  web:   http://yale.cs.uni-dortmund.de/
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License as 
 *  published by the Free Software Foundation; either version 2 of the
 *  License, or (at your option) any later version. 
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 */
package edu.udo.cs.yale.gui;

import edu.udo.cs.yale.tools.OperatorService;
import edu.udo.cs.yale.operator.OperatorChain;
import edu.udo.cs.yale.tools.GroupTree;

import javax.swing.*;
import java.util.*;
import java.awt.event.*;

public abstract class OperatorMenu extends JMenu {

    public static final OperatorMenu NEW_OPERATOR_MENU          = new NewOperatorMenu();
    public static final OperatorMenu REPLACE_OPERATOR_MENU      = new ReplaceOperatorMenu(false);
    public static final OperatorMenu REPLACE_OPERATORCHAIN_MENU = new ReplaceOperatorMenu(true);

    protected OperatorMenu(String name, boolean onlyChains) {
	super(name);
	addMenu(OperatorService.getGroups(), this, onlyChains);
    }

    public void addMenu(GroupTree group, JMenu menu, boolean onlyChains) {
	Iterator i = group.getSubGroups().iterator();
	while (i.hasNext()) {
	    GroupTree subGroup = (GroupTree)i.next();
	    JMenu subMenu = new JMenu(subGroup.getName());
	    addMenu(subGroup, subMenu, onlyChains);
	    if (subMenu.getItemCount() > 0)
		menu.add(subMenu);
	}
	i = group.getOperators().iterator();
	while (i.hasNext()) {
	    final String operator = (String)i.next();
	    if ((!onlyChains) ||
		OperatorChain.class.isAssignableFrom(OperatorService.getOperatorClass(operator))) {
		JMenuItem item = new JMenuItem(operator);
		item.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
			    performAction(operator);
			}
		    });
		menu.add(item);
	    }
	}
    }

    public abstract void performAction(String operatorClass);
}