org.spc.ofp.tubs.domain.purseseine.TripRepository.java Source code

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Here is the source code for org.spc.ofp.tubs.domain.purseseine.TripRepository.java

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/*
 * Copyright (C) 2011 Secretariat of the Pacific Community
 *
 * This file is part of TUBS.
 *
 * TUBS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * TUBS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with TUBS.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.spc.ofp.tubs.domain.purseseine;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceUnit;

import org.springframework.stereotype.Repository;

/**
 * @author Corey Cole <coreyc@spc.int>
 *
 */
@Repository("purseseine.TripRepository")
public class TripRepository {

    @PersistenceContext
    protected EntityManager em; // Used for read-only stuff

    @PersistenceUnit
    protected EntityManagerFactory emf;

    public void save(final PurseSeineTrip trip) {
        final EntityManager mgr = emf.createEntityManager();
        final EntityTransaction xa = mgr.getTransaction();
        try {
            xa.begin();
            mgr.persist(trip);
            mgr.flush();
            xa.commit();
            mgr.refresh(trip);
        } catch (Exception ex) {
            if (xa.isActive()) {
                xa.rollback();
            }
        } finally {
            mgr.close();
        }
    }

    public void update(final PurseSeineTrip trip) {
        final EntityManager mgr = emf.createEntityManager();
        final EntityTransaction xa = mgr.getTransaction();
        try {
            xa.begin();
            mgr.merge(trip);
            xa.commit();
        } catch (Exception ex) {
            if (xa.isActive()) {
                xa.rollback();
            }
        } finally {
            mgr.close();
        }
    }

    public PurseSeineTrip findById(final long tripId) {
        return em.find(PurseSeineTrip.class, tripId);
    }
}