TestHashTable.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.util.*;

import com.db4o.*;

public class TestHashTable {
  
  public Hashtable ht;
  
  public void configure(){
    Db4o.configure().objectClass(this).cascadeOnUpdate(true);
    Db4o.configure().objectClass(this).cascadeOnDelete(true);
  }
  
  public void store(){
    Test.deleteAllInstances(this);
    Test.deleteAllInstances(new Atom());
    Test.deleteAllInstances(new com.db4o.config.Entry());
    TestHashTable tht = new TestHashTable();
    tht.ht = new Hashtable();
    tht.ht.put("t1", new Atom("t1"));
    tht.ht.put("t2", new Atom("t2"));
    Test.store(tht);
  }
  
  public void test(){
    com.db4o.config.Entry checkEntries = new com.db4o.config.Entry();
    TestHashTable tht = (TestHashTable)Test.getOne(this);
    Test.ensure(tht.ht.size() == 2);
    Test.ensure(tht.ht.get("t1").equals(new Atom("t1")));
    Test.ensure(tht.ht.get("t2").equals(new Atom("t2")));
    tht.ht.put("t2", new Atom("t3"));
    Test.store(tht);
    
    if(Test.COMPARE_INTERNAL_OK){
      Test.ensureOccurrences(checkEntries, 2);
      Test.commit();
      Test.ensureOccurrences(checkEntries, 2);
      Test.deleteAllInstances(this);
      Test.ensureOccurrences(checkEntries, 0);
      Test.rollBack();
      Test.ensureOccurrences(checkEntries, 2);
      Test.deleteAllInstances(this);
      Test.ensureOccurrences(checkEntries, 0);
      Test.commit();
      Test.ensureOccurrences(checkEntries, 0);
    }
  }
}