org.n52.sos.feeder.baw.hibernate.InitSessionFactory.java Source code

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Here is the source code for org.n52.sos.feeder.baw.hibernate.InitSessionFactory.java

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/**
 * Copyright (C) 2014-2014 52North Initiative for Geospatial Open Source
 * Software GmbH
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 2 as publishedby the Free
 * Software Foundation.
 *
 * If the program is linked with libraries which are licensed under one of the
 * following licenses, the combination of the program with the linked library is
 * not considered a "derivative work" of the program:
 *
 *     - Apache License, version 2.0
 *     - Apache Software License, version 1.0
 *     - GNU Lesser General Public License, version 3
 *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
 *     - Common Development and Distribution License (CDDL), version 1.0
 *
 * Therefore the distribution of the program linked with libraries licensed under
 * the aforementioned licenses, is permitted by the copyright holders if the
 * distribution is compliant with both the GNU General Public License version 2
 * and the aforementioned licenses.
 *
 * This program 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 General Public License for more details.
 */
package org.n52.sos.feeder.baw.hibernate;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.n52.sos.feeder.baw.utils.Strings;

/**
 * Initialize a connection to the database.
 * @author Jan Schulte
 * 
 */
public class InitSessionFactory {

    /** The session factory. */
    private static SessionFactory sessionFactory;

    /**
     * Gets the single instance of InitSessionFactory.
     *
     * @return The SessionFactory
     */
    public static SessionFactory getInstance() {
        if (sessionFactory == null) {
            final Configuration cfg = new Configuration();
            cfg.configure(Strings.getString("Hibernate.configFile"));
            sessionFactory = cfg.buildSessionFactory();
        }
        return sessionFactory;
    }
}