Package org.apache.openjpa.persistence.jdbc

Source Code of org.apache.openjpa.persistence.jdbc.TestIsolationFecthHint

/*
* 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;

import javax.persistence.Query;

import org.apache.openjpa.jdbc.conf.JDBCConfiguration;
import org.apache.openjpa.jdbc.sql.DB2Dictionary;
import org.apache.openjpa.jdbc.sql.DBDictionary;
import org.apache.openjpa.persistence.OpenJPAEntityManagerSPI;
import org.apache.openjpa.persistence.simple.AllFieldTypes;
import org.apache.openjpa.persistence.test.SQLListenerTestCase;

public class TestIsolationFecthHint extends SQLListenerTestCase{
 
  public void setUp(){
    setUp(AllFieldTypes.class, CLEAR_TABLES);
   
 

    public void testFetchPlanIsolationURHint(){
      OpenJPAEntityManagerSPI em = emf.createEntityManager();    
        try {
          DBDictionary dict = ((JDBCConfiguration) em.getConfiguration())
                    .getDBDictionaryInstance();
           if (dict instanceof DB2Dictionary) {
             AllFieldTypes allFieldTypes = new AllFieldTypes();
              allFieldTypes.setStringField("testString");
              allFieldTypes.setIntField(2012);
             
              em.getTransaction().begin();
              em.persist(allFieldTypes);
              Query query = em.createQuery("select e from AllFieldTypes e where e.stringField = ?1");
              query.setParameter(1, "testString");
              query.setHint("openjpa.FetchPlan.Isolation", "READ_UNCOMMITTED");
              assertEquals(1, query.getResultList().size());
              assertContainsSQL("FOR READ ONLY WITH UR");
              em.getTransaction().rollback();
        }
        } finally {
          em.close();
        }
    }
}
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