/*
* TestDBSequenceFactory.java
*
* Created on October 6, 2006, 1:24 PM
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.openjpa.persistence.jdbc.schema;
import java.util.*;
import javax.sql.DataSource;
import org.apache.openjpa.jdbc.conf.JDBCConfiguration;
import org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl;
import org.apache.openjpa.jdbc.kernel.TableJDBCSeq;
import org.apache.openjpa.kernel.Broker;
import org.apache.openjpa.persistence.jdbc.common.apps.*;
import java.lang.annotation.Annotation;
import junit.framework.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import org.apache.openjpa.persistence.OpenJPAEntityManagerFactory;
import org.apache.openjpa.persistence.OpenJPAEntityManager;
public class TestDBSequenceFactory
extends org.apache.openjpa.persistence.jdbc.kernel.BaseJDBCTest {
private Broker _broker;
/** Creates a new instance of TestDBSequenceFactory */
public TestDBSequenceFactory() {
}
public TestDBSequenceFactory(String test) {
super(test);
}
/**
* Tests that all sequence numbers are unique and in order.
* Will fail for dbs without pessimistic locking.
*/
public void testSequence()
throws Exception {
_broker = getBrokerFactory().newBroker();
Set set = Collections.synchronizedSet(new HashSet());
Thread t1 = new UpdateThread(set);
Thread t2 = new UpdateThread(set);
t1.start();
t2.start();
t1.join(5 * 60 * 1000);
t2.join(5 * 60 * 1000);
assertFalse(t1.isAlive());
assertFalse(t2.isAlive());
assertEquals(102, set.size());
}
public static void main(String[] args) {
//main();
}
private class UpdateThread
extends Thread {
private Set _set = null;
public UpdateThread(Set set) {
_set = set;
}
public void run() {
try {
JDBCConfiguration conf = new JDBCConfigurationImpl();
TableJDBCSeq seq = new TableJDBCSeq();
seq.setConfiguration(conf);
seq.startConfiguration();
seq.endConfiguration();
DataSource ds = conf.getDataSource2(null);
for (int i = 0; i < 51; i++)
_set.add(seq.next(_broker,
conf.getMetaDataRepositoryInstance().
getMetaData(RuntimeTest1.class, null, true)));
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
}
}
}