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    
022    import org.apache.oozie.WorkflowActionBean;
023    import org.apache.oozie.util.ParamChecker;
024    import org.apache.oozie.ErrorCode;
025    
026    /**
027    * Persist the WorkflowAction bean.
028    */
029    public class WorkflowActionUpdateJPAExecutor implements JPAExecutor<String> {
030    
031        private WorkflowActionBean wfAction = null;
032    
033        public WorkflowActionUpdateJPAExecutor(WorkflowActionBean wfAction) {
034            ParamChecker.notNull(wfAction, "wfAction");
035            this.wfAction = wfAction;
036        }
037    
038        @Override
039        public String getName() {
040            return "WorkflowActionUpdateJPAExecutor";
041        }
042    
043        @Override
044        public String execute(EntityManager em) throws JPAExecutorException {
045    
046            try {
047                em.merge(wfAction);
048                return null;
049            }
050            catch (Exception e) {
051                throw new JPAExecutorException(ErrorCode.E0603, e.getMessage(), e);
052            }
053        }
054    
055    }