ParameterizedEvaluation.java :  » Database-DBMS » db4o-6.4 » com » db4o » test » Java Open Source

/* Copyright (C) 2004 - 2007  db4objects Inc.  http://www.db4o.com

This file is part of the db4o open source object database.

db4o is free software; you can redistribute it and/or modify it under
the terms of version 2 of the GNU General Public License as published
by the Free Software Foundation and as clarified by db4objects' GPL 
interpretation policy, available at
http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
Suite 350, San Mateo, CA 94403, USA.

db4o 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 com.db4o.test;

import java.io.*;

import com.db4o.*;
import com.db4o.query.*;

/**
 * 
 */
public class ParameterizedEvaluation implements Serializable {
    
    public String str;
    
    public void store(){
        Test.deleteAllInstances(this);
        store("one");
        store("fun");
        store("ton");
        store("sun");
    }
    
    private void store(String str){
        ParameterizedEvaluation pe = new ParameterizedEvaluation();
        pe.str = str;
        Test.store(pe);
    }
    
    public void test(){
        Test.ensure(queryContains("un").size() == 2);
    }
    
    private ObjectSet queryContains(final String str){
        Query q = Test.query();
        q.constrain(ParameterizedEvaluation.class);
        q.constrain(new Evaluation() {
            public void evaluate(Candidate candidate) {
                ParameterizedEvaluation pe = (ParameterizedEvaluation)candidate.getObject();
                boolean inc = pe.str.indexOf(str) != -1;
                candidate.include(inc);
            }
        });
        
        return q.execute();
    }

}