src.main.java.com.axiastudio.zoefx.persistence.JPADatabaseImpl Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of zoefx-persistence Show documentation
ZoeFX is a MVC framework based on JavaFX.
The newest version!
/*
 * Copyright (c) 2014, AXIA Studio (Tiziano Lattisi) - http://www.axiastudio.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the AXIA Studio nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY AXIA STUDIO ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL AXIA STUDIO BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.axiastudio.zoefx.persistence;

import com.axiastudio.zoefx.core.db.Database;
import com.axiastudio.zoefx.core.db.Manager;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import java.util.Map;

/**
 * User: tiziano
 * Date: 18/03/14
 * Time: 20:46
 */
public class JPADatabaseImpl implements Database {

    private EntityManagerFactory entityManagerFactory;
    private Boolean entityManagerSingleton=true;

    public JPADatabaseImpl() {
        this(Boolean.TRUE);
    }

    public JPADatabaseImpl(Boolean entityManagerSingleton) {
        this.entityManagerSingleton = entityManagerSingleton;
    }

    public EntityManagerFactory getEntityManagerFactory() {
        return entityManagerFactory;
    }

    /**
     * Initialize the entity manager factory.
     *
     * @param persistenceUnit The persistence unit defined in persistence.xml
     *
     */
    @Override
    public void open(String persistenceUnit) {
        this.entityManagerFactory = Persistence.createEntityManagerFactory(persistenceUnit);
    }
    /**
     * Initialize the entity manager factory.
     *
     * @param persistenceUnit The persistence unit defined in persistence.xml
     * @param properties Properties in overriding
     *
     */
    @Override
    public void open(String persistenceUnit, Map properties) {
        this.entityManagerFactory = Persistence.createEntityManagerFactory(persistenceUnit, properties);
    }

    /**
     * Create a controller for the entities of the given class.
     *
     * @param klass The class managed from the controller
     *
     */
    @Override
    public  Manager createManager(Class klass){
        if( entityManagerSingleton ) {
            return new JPAManagerImpl(getEntityManagerFactory(), klass, getEntityManagerFactory().createEntityManager());
        }
        return new JPAManagerImpl(getEntityManagerFactory(), klass);
    }

    /**
     * Create a controller for the entities of the given class, using the same EntityManager
     *
     * @param klass The class managed from the controller
     * @param parentManager The parent manager
     *
     */
    @Override
    public  Manager createManager(Class klass, Manager parentManager) {
        JPAManagerImpl manager = new JPAManagerImpl(((JPAManagerImpl) parentManager).getEntityManagerFactory(), klass, ((JPAManagerImpl) parentManager).getEntityManager());
        return manager;
    }
}