001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018 019package org.apache.oozie.executor.jpa; 020 021import java.util.List; 022 023import javax.persistence.EntityManager; 024import javax.persistence.Query; 025 026import org.apache.oozie.ErrorCode; 027 028/** 029 * Load the list of CoordinatorJob with the passed in parentId 030 */ 031public class CoordJobsGetFromParentIdJPAExecutor implements JPAExecutor<List<String>> { 032 033 private String parentId; 034 private int limit; 035 private int offset; 036 037 public CoordJobsGetFromParentIdJPAExecutor(String parentId, int limit) { 038 this(parentId, 0, limit); 039 } 040 041 public CoordJobsGetFromParentIdJPAExecutor(String parentId, int offset, int limit) { 042 this.parentId = parentId; 043 this.offset = offset; 044 this.limit = limit; 045 } 046 047 /* (non-Javadoc) 048 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 049 */ 050 @Override 051 public String getName() { 052 return "CoordJobsGetFromParentIdJPAExecutor"; 053 } 054 055 /* (non-Javadoc) 056 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 057 */ 058 @Override 059 @SuppressWarnings("unchecked") 060 public List<String> execute(EntityManager em) throws JPAExecutorException { 061 List<String> coords = null; 062 try { 063 Query jobQ = em.createNamedQuery("GET_COORD_JOBS_WITH_PARENT_ID"); 064 jobQ.setParameter("parentId", parentId); 065 jobQ.setMaxResults(limit); 066 jobQ.setFirstResult(offset); 067 coords = jobQ.getResultList(); 068 } 069 catch (Exception e) { 070 throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e); 071 } 072 return coords; 073 } 074 075}