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