| 1 | /* |
| 2 | * Copyright 2006-2013 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.springframework.batch.item.database.orm; |
| 18 | |
| 19 | import javax.persistence.EntityManager; |
| 20 | import javax.persistence.Query; |
| 21 | |
| 22 | import org.springframework.beans.factory.InitializingBean; |
| 23 | |
| 24 | /** |
| 25 | * <p> |
| 26 | * Abstract JPA Query Provider to serve as a base class for all JPA |
| 27 | * {@link Query} providers. |
| 28 | * </p> |
| 29 | * |
| 30 | * @author Anatoly Polinsky |
| 31 | * @author Dave Syer |
| 32 | * |
| 33 | * @since 2.1 |
| 34 | */ |
| 35 | public abstract class AbstractJpaQueryProvider implements JpaQueryProvider, InitializingBean { |
| 36 | |
| 37 | private EntityManager entityManager; |
| 38 | |
| 39 | /** |
| 40 | * <p> |
| 41 | * Public setter to override the entityManager that was created by this |
| 42 | * {@link HibernateQueryProvider}. This is currently needed to allow |
| 43 | * {@link HibernateQueryProvider} to participate in a user's managed transaction. |
| 44 | * </p> |
| 45 | * |
| 46 | * @param entityManager |
| 47 | */ |
| 48 | @Override |
| 49 | public void setEntityManager(EntityManager entityManager) { |
| 50 | this.entityManager = entityManager; |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * <p> |
| 55 | * Getter for {@link EntityManager} |
| 56 | * </p> |
| 57 | * |
| 58 | * @return entityManager the injected {@link EntityManager} |
| 59 | */ |
| 60 | protected EntityManager getEntityManager() { |
| 61 | return entityManager; |
| 62 | } |
| 63 | } |