/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 2.1 of
* the License, or (at your option) any later version.
*
* This software 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 this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.seam.resteasy;
import org.jboss.seam.framework.EntityHome;
import org.jboss.seam.framework.HibernateEntityHome;
import org.jboss.seam.framework.Home;
/**
* This class provides an unified interface for accessing EntityHome and
* HibernateEntityHome instances.
*
* @author Jozef Hartinger
* @see org.jboss.seam.framework.EntityHome
* @see org.jboss.seam.framework.HibernateEntityHome
*/
public class EntityHomeWrapper<T>
{
private Home<?, T> home = null;
private boolean hibernate;
/**
* EntityHome or HibernateEntityHome instance is expected.
*/
public EntityHomeWrapper(Home<?, T> entityHome)
{
if (entityHome instanceof EntityHome)
{
hibernate = false;
}
else if (entityHome instanceof HibernateEntityHome)
{
hibernate = true;
}
else
{
throw new IllegalArgumentException("You must use either EntityHome or HibernateEntityHome instance.");
}
this.home = entityHome;
}
public Object getId()
{
return home.getId();
}
public void setId(Object id)
{
home.setId(id);
}
public T getInstance()
{
return home.getInstance();
}
public void setInstance(T instance)
{
home.setInstance(instance);
}
public T find()
{
if (hibernate)
{
return getHibernateEntityHome().find();
}
else
{
return getEntityHome().find();
}
}
public void persist()
{
if (hibernate)
{
getHibernateEntityHome().persist();
}
else
{
getEntityHome().persist();
}
}
public void remove()
{
if (hibernate)
{
getHibernateEntityHome().remove();
}
else
{
getEntityHome().remove();
}
}
/**
* Merge the state of the given entity with the current persistence context.
*/
public void merge(T object)
{
if (hibernate)
{
getHibernateEntityHome().getSession().merge(object);
getHibernateEntityHome().update();
}
else
{
getEntityHome().getEntityManager().merge(object);
getEntityHome().update();
}
}
public Class<T> getEntityClass()
{
return home.getEntityClass();
}
private EntityHome<T> getEntityHome()
{
return (EntityHome<T>) home;
}
private HibernateEntityHome<T> getHibernateEntityHome()
{
return (HibernateEntityHome<T>) home;
}
/**
* Return the underlying EntityHome or HibernateEntityHome instance.
*/
public Home<?, T> unwrap()
{
if (hibernate)
{
return getHibernateEntityHome();
}
else
{
return getEntityHome();
}
}
}