testresultset4.java

Mandarax是一个规则引擎的纯Java实现。它支持多类型的事实和基于反映的规则

/*
 * Copyright (C) 1999-2004 <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</a>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package test.org.mandarax.reference;

import org.mandarax.kernel.InferenceEngine;
import org.mandarax.kernel.InferenceException;
import org.mandarax.kernel.KnowledgeBase;
import org.mandarax.kernel.ResultSet;

/**
 * Test case for testing the ResultSet method <code>last()</code>.
 * @author <A href="http://www-ist.massey.ac.nz/JBDietrich" target="_top">Jens Dietrich</A>
 * @version 3.4 <7 March 05>
 * @since 1.7
 */
public class TestResultSet4 extends TestResultSet {

	/**
	 * Constructor.
	 * @param kb a new, uninitialized knowledge base that will be used
	 * @param ie the inference engine that will be tested
	 */
	public TestResultSet4(KnowledgeBase kb, InferenceEngine ie) {
		super(kb, ie);
	}

	/**
	 * Get a description of this test case.
	 * This is used by the <code>org.mandarax.demo</code>
	 * package to display the test cases.
	 * @return a brief description of the test case
	 */
	public String getDescription() {
		return "Test ResultSet";
	}
	/**
	 * Test the result set. Note that the result set is uninitialized (nothing has been fetched).
	 * @param rs the result set
	 * @return false if the test fails and true otherwise
	 */
	public boolean testResultSet(ResultSet rs) {
		try {
			rs.last();
			Person value = (Person)rs.getResult(Person.class, "x");
			return (value != null && value.getName().equals(this.getPersonName()));
			
		}
		catch (InferenceException x) {
			System.err.println("Error running test case " + this);
			x.printStackTrace();
		}
		return false;
	}
}