001    /**
002    * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
003    * Licensed under the Apache License, Version 2.0 (the "License");
004    * you may not use this file except in compliance with the License.
005    * You may obtain a copy of the License at
006    *
007    * http://www.apache.org/licenses/LICENSE-2.0
008    *
009    * Unless required by applicable law or agreed to in writing, software
010    * distributed under the License is distributed on an "AS IS" BASIS,
011    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    * See the License for the specific language governing permissions and
013    * limitations under the License. See accompanying LICENSE file.
014    */
015    package org.apache.oozie.executor.jpa;
016    
017    import javax.persistence.EntityManager;
018    
019    import org.apache.oozie.WorkflowActionBean;
020    import org.apache.oozie.util.ParamChecker;
021    import org.apache.oozie.ErrorCode;
022    
023    /**
024    * Persist the WorkflowAction bean.
025    */
026    public class WorkflowActionUpdateJPAExecutor implements JPAExecutor<String> {
027    
028        private WorkflowActionBean wfAction = null;
029    
030        public WorkflowActionUpdateJPAExecutor(WorkflowActionBean wfAction) {
031            ParamChecker.notNull(wfAction, "wfAction");
032            this.wfAction = wfAction;
033        }
034    
035        @Override
036        public String getName() {
037            return "WorkflowActionUpdateJPAExecutor";
038        }
039    
040        @Override
041        public String execute(EntityManager em) throws JPAExecutorException {
042    
043            try {
044                em.merge(wfAction);
045                return null;
046            }
047            catch (Exception e) {
048                throw new JPAExecutorException(ErrorCode.E0603, e);
049            }
050        }
051    
052    }