Java tutorial
/* * Copyright [2009] [Nick Wiedenbrueck] * * 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 com.kenai.wicketgae.orm; import javax.persistence.EntityManagerFactory; import javax.persistence.Persistence; import javax.persistence.PersistenceException; import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean; import org.springframework.orm.jpa.LocalEntityManagerFactoryBean; /** * Simplified {@link LocalEntityManagerFactoryBean} for use in Google App * Engine. * <p> * Somehow the {@link LocalEntityManagerFactoryBean} has some issues with * DataNucleus. Uses {@link Persistence#createEntityManagerFactory(String)}. * * @author nwi */ public class AppEngineJpaEntityManagerFactoryBean extends LocalContainerEntityManagerFactoryBean { private String persistenceUnit; @Override protected EntityManagerFactory createNativeEntityManagerFactory() throws PersistenceException { return Persistence.createEntityManagerFactory(persistenceUnit); } /** * Sets the persistence unit name. * * @param persistenceUnit * name of the persistence unit */ public void setPersistenceUnit(final String persistenceUnit) { this.persistenceUnit = persistenceUnit; } }