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 */
018package org.apache.oozie.executor.jpa;
019
020import javax.persistence.EntityManager;
021
022import org.apache.oozie.WorkflowActionBean;
023import org.apache.oozie.util.ParamChecker;
024
025public class WorkflowActionDeleteJPAExecutor implements JPAExecutor<Void> {
026
027    private final String wfActionId;
028
029    /**
030     * @param wfActionId
031     */
032    public WorkflowActionDeleteJPAExecutor(String wfActionId) {
033        ParamChecker.notEmpty(wfActionId, "ActionID");
034        this.wfActionId = wfActionId;
035    }
036
037    /* (non-Javadoc)
038     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
039     */
040    @Override
041    public Void execute(EntityManager em) throws JPAExecutorException {
042        WorkflowActionBean action = em.find(WorkflowActionBean.class, this.wfActionId);
043        if (action != null) {
044            em.remove(action);
045        }
046        return null;
047    }
048
049    /* (non-Javadoc)
050     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
051     */
052    @Override
053    public String getName() {
054        return "WorkflowActionDeleteJPAExecutor";
055    }
056}