ResourceProducer.java

/*
  Copyright 2011-2014 Red Hat, Inc

  This file is part of PressGang CCMS.

  PressGang CCMS is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  PressGang CCMS 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 Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with PressGang CCMS.  If not, see <http://www.gnu.org/licenses/>.
*/

package org.jboss.pressgang.ccms.server.utils;

import javax.enterprise.context.RequestScoped;
import javax.enterprise.inject.Disposes;
import javax.enterprise.inject.Produces;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.FlushModeType;
import javax.persistence.PersistenceUnit;

public class ResourceProducer {
    public static final String PERSISTENCE_UNIT_NAME = "PressGangCCMS";

    @PersistenceUnit(unitName = PERSISTENCE_UNIT_NAME)
    protected EntityManagerFactory entityManagerFactory;

    @Produces
    @RequestScoped
    public EntityManager createEntityManager() {
        final EntityManager entityManager = entityManagerFactory.createEntityManager();
        entityManager.setFlushMode(FlushModeType.AUTO);
        return entityManager;
    }

    public void dispose(@Disposes EntityManager entityManager) {
        if (entityManager.isOpen()) {
            entityManager.close();
        }
    }
}