/*
 * 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 jakarta.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{

    @Override
    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();
        }
    }
}
