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 package org.apache.oozie.executor.jpa; 019 020 import javax.persistence.EntityManager; 021 import javax.persistence.Query; 022 023 import org.apache.oozie.ErrorCode; 024 import org.apache.oozie.util.ParamChecker; 025 026 /** 027 * Delete the list of WorkflowAction for a WorkflowJob and return the number of actions been deleted. 028 */ 029 public class WorkflowActionsDeleteForPurgeJPAExecutor implements JPAExecutor<Integer> { 030 031 private String wfId = null; 032 033 public WorkflowActionsDeleteForPurgeJPAExecutor(String wfId) { 034 ParamChecker.notNull(wfId, "wfId"); 035 this.wfId = wfId; 036 } 037 038 /* (non-Javadoc) 039 * @see org.apache.oozie.executor.jpa.JPAExecutor#getName() 040 */ 041 @Override 042 public String getName() { 043 return "WorkflowActionsDeleteForPurgeJPAExecutor"; 044 } 045 046 /* (non-Javadoc) 047 * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager) 048 */ 049 @Override 050 public Integer execute(EntityManager em) throws JPAExecutorException { 051 int actionsDeleted = 0; 052 try { 053 Query g = em.createNamedQuery("DELETE_ACTIONS_FOR_WORKFLOW"); 054 g.setParameter("wfId", wfId); 055 actionsDeleted = g.executeUpdate(); 056 } 057 catch (Exception e) { 058 throw new JPAExecutorException(ErrorCode.E0603, e); 059 } 060 return actionsDeleted; 061 } 062 063 }