wizardpropertytable.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.Experiment;
import edu.udo.cs.yale.operator.Operator;
import edu.udo.cs.yale.operator.parameter.ParameterType;

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

/** With a WizardPropertyTable one can edit (a subset of) parameters of all operators of the experiment
 *  in one place. */
public class WizardPropertyTable extends SimplePropertyTable {

    //private PropertyCellEditor[] editors;
    //private TableCellRenderer[]  renderers;
    private Operator[]           operators;
    private ParameterType[]      parameterTypes;

    public WizardPropertyTable() {
	super();
	setExperiment(null, null);
    }

    /** Sets rhe experiment and the editable parameters.
     *  @param parameters A list of String[2] where the first String is the name of the operator
     *  and the second is the name of the parameter. */
    public void setExperiment(Experiment experiment, List parameters) {
	if (experiment == null) {
	    parameters = new LinkedList(); // enforce arraylengths = 0
	}
	updateTableData(parameters.size());

	operators      = new Operator[parameters.size()];
	parameterTypes = new ParameterType[parameters.size()];
	//editors        = new PropertyCellEditor[parameters.size()];
	//renderers      = new TableCellRenderer[parameters.size()];

	Iterator i = parameters.iterator();
	int j = 0;
	while (i.hasNext()) {
	    String[] parameter = (String[])i.next();
	    operators[j]      = experiment.getOperator(parameter[0]);
	    parameterTypes[j] = getParameterType(operators[j], parameter[1]);
	    getDefaultModel().setValueAt(operators[j].getName() + "." + parameterTypes[j].getKey(), j, 0);
	    getDefaultModel().setValueAt(operators[j].getParameters().getParameter(parameterTypes[j].getKey()), j, 1);
	    //editors[j]        = createPropertyCellEditor(parameterTypes[j], operators[j]);
	    //renderers[j]      = new PropertyKeyRenderer(parameterTypes[j]);
	    j++;
	} 
	updateEditorsAndRenderers();
	
	getDefaultModel().addTableModelListener(new TableModelListener() {
		public void tableChanged(TableModelEvent e) {
		    setValue(e.getFirstRow(), getDefaultModel().getValueAt(e.getFirstRow(), 1));
		}
	    });
    }

    private static ParameterType getParameterType(Operator operator, String key) {
	Iterator i = operator.getParameterTypes().iterator();
	while (i.hasNext()) {
	    ParameterType type = (ParameterType)i.next();
	    if (type.getKey().equals(key)) return type;
	}
	return null;
    }

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

    public Operator getOperator(int row) {
	return operators[row];
    }
}