| /* |
| * 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.batchee.container.services.persistence.jpa.provider; |
| |
| import org.apache.batchee.container.services.factory.CDIBatchArtifactFactory; |
| import org.apache.batchee.container.services.persistence.jpa.EntityManagerProvider; |
| |
| import javax.persistence.EntityManager; |
| import java.util.Properties; |
| |
| /** |
| * Designed to use a container entity manager relying on JTA to commit. |
| * The EntityManager is a CDI bean with the qualifier @Named. |
| * Default name is "batcheeJpaEm" but it can be customized using "persistence.jpa.ee.entity-manager.name" property. |
| * |
| * Note: the bean should be scoped @ApplicationScoped. |
| * |
| * Typically: |
| * |
| * |
| <code> |
| @PersistenceContext |
| @Produces |
| @Named |
| private EntityManager batcheeJpaEm; |
| </code> |
| */ |
| public class EEEntityManagerProvider implements EntityManagerProvider { |
| private EntityManager instance; |
| |
| @Override |
| public EntityManager newEntityManager() { |
| return instance; |
| } |
| |
| @Override |
| public void release(final EntityManager entityManager) { |
| // no-op |
| } |
| |
| @Override |
| public void init(final Properties batchConfig) { |
| final String beanName = batchConfig.getProperty("persistence.jpa.ee.entity-manager.name", "batcheeJpaEm"); |
| instance = EntityManager.class.cast(new CDIBatchArtifactFactory().load(beanName).getValue()); |
| } |
| } |