operatorpropertytable.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.operator.Operator;
import edu.udo.cs.yale.operator.parameter.ParameterType;

import javax.swing.event.TableModelListener;
import javax.swing.event.TableModelEvent;
import java.util.List;
import java.util.LinkedList;
import java.util.Iterator;

/** This is the most important implementation of PropertyTable. It is used to edit the parameters of
 *  a single operator.  Data changes in the table are immediately reflected in the operator. They cannot
 *  be cancelled. */
public class OperatorPropertyTable extends SimplePropertyTable {

    private MainFrame mainFrame;
    private Operator operator;
    private ParameterType[] parameterTypes;

    private boolean expertMode = false;


    public OperatorPropertyTable(MainFrame mainFrame) {
	super();
	this.mainFrame = mainFrame;
	setOperator(null);
    }

    public void toggleExpertMode() {
	expertMode = !expertMode;
	setOperator(operator);
    }

    public void setExpertMode(boolean expertMode) {
	this.expertMode = expertMode;
    }

    public boolean isExpertMode() { return expertMode; }

    public void setOperator(Operator operator) {
	this.operator = operator;
	if (operator != null) {
	    List parameters = operator.getParameterTypes();
	    List viewableParameters = new LinkedList();
	    Iterator i = parameters.iterator();
	    while (i.hasNext()) {
		ParameterType type = (ParameterType)i.next();
		if (expertMode || !type.isExpert()) 
		    viewableParameters.add(type);
	    }
	    parameterTypes = new ParameterType[viewableParameters.size()];
	    viewableParameters.toArray(parameterTypes);
	} else {
	    parameterTypes = new ParameterType[0];
	}

	updateTableData(parameterTypes.length);
	
	for (int i = 0; i < parameterTypes.length;i++) {
	    ParameterType type = parameterTypes[i];
	    getDefaultModel().setValueAt(parameterTypes[i].getKey(), i, 0);
	    getDefaultModel().setValueAt(operator.getParameters().getParameter(parameterTypes[i].getKey()), i, 1);
	}
	updateEditorsAndRenderers();
	
	getDefaultModel().addTableModelListener(new TableModelListener() {
		public void tableChanged(TableModelEvent e) {
		    setValue(e.getFirstRow(), getDefaultModel().getValueAt(e.getFirstRow(), 1));
		    mainFrame.experimentChanged();
		}
	    });
    }

    public ParameterType getParameterType(int row) {
	return parameterTypes[row];
    }

    public Operator getOperator(int row) {
	return operator;
    }
}