com.tysanclan.site.projectewok.dataaccess.EwokHibernateDAO.java Source code

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Here is the source code for com.tysanclan.site.projectewok.dataaccess.EwokHibernateDAO.java

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/**
 * Tysan Clan Website
 * Copyright (C) 2008-2013 Jeroen Steenbeeke and Ties van de Ven
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.tysanclan.site.projectewok.dataaccess;

import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.FlushMode;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.jeroensteenbeeke.hyperion.data.DomainObject;
import com.jeroensteenbeeke.hyperion.data.HibernateDAO;

/**
 * A Data Access Object that uses the Hibernate ORM package
 * 
 * @author Jeroen Steenbeeke
 * @param <T>
 *            The domain object loadable by this DAO
 */
@SuppressWarnings("unchecked")
@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)
public abstract class EwokHibernateDAO<T extends DomainObject> extends HibernateDAO<T> implements EwokDAO<T> {
    private Class<T> domainClass = (Class<T>) ((ParameterizedType) getClass().getGenericSuperclass())
            .getActualTypeArguments()[0];
    private SessionFactory sessionFactory;

    /**
     * Get a list of all objects
     * 
     * @return The list of objects, which may be empty
     */
    @Override
    public List<T> findAll() {
        Criteria crit = getSession().createCriteria(domainClass);
        return crit.list();
    }

    /**
     * @return The Session for this factory
     */
    @Override
    public Session getSession() {
        Session session = sessionFactory.getCurrentSession();
        session.setFlushMode(FlushMode.COMMIT);
        return session;
    }

    /**
     * @return The session factory
     */
    @Override
    public SessionFactory getSessionFactory() {
        return sessionFactory;
    }

    @Override
    public T load(Serializable id) {
        return (T) getSession().load(domainClass, id);
    }

    @Override
    public T get(Serializable id) {

        return (T) getSession().get(domainClass, id);
    }

    /**
     * Save the indicated object
     * 
     * @param object
     *            The object to save
     */
    @Override
    @Transactional(propagation = Propagation.REQUIRED, readOnly = false)
    public void save(T object) {
        getSession().save(object);
    }

    @Override
    @Transactional(propagation = Propagation.REQUIRED, readOnly = false)
    public void update(T object) {
        getSession().update(object);
    }

    /**
     * Sets the session factory of this DAO
     * 
     * @param sessionFactory
     *            The factory to set
     */
    @Override
    @Autowired
    public void setSessionFactory(SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }
}