/**
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License. See accompanying LICENSE file.
 */
package org.apache.oozie.executor.jpa;

import javax.persistence.EntityManager;
import org.apache.oozie.BundleJobBean;
import org.apache.oozie.util.ParamChecker;

/**
 *  Update the given bundle job bean to DB.
 */
public class BundleJobUpdateJPAExecutor implements JPAExecutor<Void> {

    private BundleJobBean bundleJob = null;

    /**
     * The constructor for class {@link BundleJobUpdateJPAExecutor}
     *
     * @param bundleJob bundle job bean
     */
    public BundleJobUpdateJPAExecutor(BundleJobBean bundleJob) {
        ParamChecker.notNull(bundleJob, "bundleJob");
        this.bundleJob = bundleJob;
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.executor.jpa.JPAExecutor#getName()
     */
    @Override
    public String getName() {
        return "BundleJobUpdateJPAExecutor";
    }

    /* (non-Javadoc)
     * @see org.apache.oozie.executor.jpa.JPAExecutor#execute(javax.persistence.EntityManager)
     */
    @Override
    public Void execute(EntityManager em) throws JPAExecutorException {
        em.merge(bundleJob);
        return null;
    }

}