condition.java

来自「著名的开源仿真软件yale」· Java 代码 · 共 44 行

/*
 *  YALE - Yet Another Learning Environment
 *  Copyright (C) 2002, 2003
 *      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.example;

/** An object implementing this interface has to be provided to any
 *  <code>ConditionExampleReader</code> object, a special sub class of 
 *  <code>ExampleReader</code> that skips all examples that do not 
 *  fulfill the specified condition.
 *  In order for the {@link ConditionExampleReader#createCondition(String, ExampleSet, String)}
 *  factory method to be able to create instances of an implementation of Condition,
 *  it must (additionaly to the declared interface method) implement a two argument
 *  constructor taking an {@link ExampleSet} and a parameter String. The meaning of the 
 *  parameter string is dependent on the implementation and may even be ignored, although
 *  it would be nice to issue a warning.
 */
public interface Condition {
    public boolean conditionOk(Example example);
}