HibernateTransactionFactory.java :  » Testing » unitils » org » unitils » hibernate » util » Java Open Source

/*
 * Copyright 2006-2007,  Unitils.org
 *
 * Licensed 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.unitils.hibernate.util;

import java.util.Properties;

import org.hibernate.ConnectionReleaseMode;
import org.hibernate.HibernateException;
import org.hibernate.Transaction;
import org.hibernate.jdbc.JDBCContext;
import org.hibernate.transaction.TransactionFactory;
import org.unitils.core.Unitils;
import org.unitils.database.DatabaseModule;

/**
 * Implementation of a hibernate <code>org.hibernate.transaction.TransactionFactory</code>. Makes
 * sure that hibernate transactions are coupled to the transaction mechanism used in Unitils.
 * <p>
 * This means that, if a transaction is started using Hibernate's transaction API, a transaction
 * is started on the Unitils transaction manager under the hoods, and that Hibernate obtains 
 * Connections that are unit test transaction scoped.
 * 
 * @author Filip Neven
 * @author Tim Ducheyne
 */
public class HibernateTransactionFactory implements TransactionFactory {

  public boolean areCallbacksLocalToHibernateTransactions() {
    return true;
  }

  public void configure(Properties props) throws HibernateException {
  }

  
  /**
   * @return An implementation of <code>org.hibernate.Transaction</code> that delegates to a
   * Unitils transaction manager under the hood 
   */
  public Transaction createTransaction(JDBCContext jdbcContext,
      Context context) throws HibernateException {
    return new HibernateTransaction();
  }

  public ConnectionReleaseMode getDefaultReleaseMode() {
    return ConnectionReleaseMode.AFTER_TRANSACTION;
  }

  public boolean isTransactionInProgress(JDBCContext jdbcContext,
      Context transactionContext, Transaction transaction) {
    return getDatabaseModule().getTransactionManager().isTransactionActive(getCurrentTestObject());
  }

  public boolean isTransactionManagerRequired() {
    return false;
  }
  
  protected Object getCurrentTestObject() {
    return Unitils.getInstance().getTestContext().getTestObject();
  }
  
  protected DatabaseModule getDatabaseModule() {
    return Unitils.getInstance().getModulesRepository().getModuleOfType(DatabaseModule.class);
  }

}