| /** |
| * 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.oozie.executor.jpa; |
| |
| import java.util.List; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.Query; |
| |
| import org.apache.oozie.client.rest.JsonBean; |
| import org.apache.oozie.service.JPAService; |
| import org.apache.oozie.service.Services; |
| |
| /** |
| * Base Class of Query Executor |
| */ |
| public abstract class QueryExecutor<T, E extends Enum<E>> { |
| |
| protected QueryExecutor() { |
| } |
| |
| public abstract int executeUpdate(E namedQuery, T jobBean) throws JPAExecutorException; |
| |
| public void insert(final JsonBean bean) throws JPAExecutorException { |
| if (bean != null) { |
| JPAService jpaService = Services.get().get(JPAService.class); |
| jpaService.execute(new JsonBeanPersisterExecutor(bean)); |
| } |
| } |
| |
| public abstract T get(E namedQuery, Object... parameters) throws JPAExecutorException; |
| |
| public abstract List<T> getList(E namedQuery, Object... parameters) throws JPAExecutorException; |
| |
| public abstract Query getUpdateQuery(E namedQuery, T wfBean, EntityManager em) throws JPAExecutorException; |
| |
| public abstract Query getSelectQuery(E namedQuery, EntityManager em, Object... parameters) |
| throws JPAExecutorException; |
| |
| public abstract Object getSingleValue(E namedQuery, Object... parameters) |
| throws JPAExecutorException; |
| |
| public abstract T getIfExist(E namedQuery, Object... parameters) throws JPAExecutorException; |
| |
| } |