org.harms.orm.upgrade.Jpa21TestDao.java Source code

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Here is the source code for org.harms.orm.upgrade.Jpa21TestDao.java

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/**
 * The MIT License
 * Copyright (c) 2016 Flemming Harms
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.harms.orm.upgrade;

import org.hibernate.Session;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

/**
 * Test the Hibernate 5.2 is in play as we expected.
 */
@Stateless
public class Jpa21TestDao {

    @PersistenceContext
    private EntityManager entityManager;

    public Jpa21TestEntity save(Jpa21TestEntity entity) {
        Session session = entityManager.unwrap(Session.class);
        session.persist(entity);
        session.flush();
        session.clear();

        session.flush();
        session.clear();

        // EntityManager methods exposed through Session only as of 5.2
        return session.find(Jpa21TestEntity.class, entity.getId());
    }

}