/*
Copyright 2008-2013 Josh Drummond
This file is part of WebPasswordSafe.
WebPasswordSafe 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 2 of the License, or
(at your option) any later version.
WebPasswordSafe 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 WebPasswordSafe; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package net.webpasswordsafe.server.dao;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.util.List;
import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.criterion.Criterion;
import org.hibernate.criterion.Example;
import org.hibernate.criterion.Order;
import org.springframework.beans.factory.annotation.Autowired;
/**
* Generic DAO implementation for Hibernate
*
* @author Josh Drummond
*
*/
public abstract class GenericHibernateDAO<T, ID extends Serializable> implements GenericDAO<T, ID> {
private Class<T> persistenceClass;
@Autowired
private SessionFactory sessionFactory;
@SuppressWarnings({"unchecked"})
protected GenericHibernateDAO() {
this.persistenceClass = (Class<T>) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];
}
public SessionFactory getSessionFactory()
{
return this.sessionFactory;
}
public Session getSession()
{
return getSessionFactory().getCurrentSession();
}
public void setSessionFactory(SessionFactory sessionFactory)
{
this.sessionFactory = sessionFactory;
}
public Class<T> getPersistentClass() {
return this.persistenceClass;
}
@Override
@SuppressWarnings({"unchecked"})
public T findById(ID id) {
return (T) getSession().load(getPersistentClass(), id);
}
@Override
public List<T> findAll() {
return findByCriteria();
}
@Override
@SuppressWarnings({"unchecked"})
public List<T> findByExample(T exampleInstance, String... excludeProperty) {
Criteria crit = getSession().createCriteria(getPersistentClass());
Example example = Example.create(exampleInstance);
for (String exclude : excludeProperty) {
example.excludeProperty(exclude);
}
crit.add(example);
return crit.list();
}
@Override
public T makePersistent(T entity) {
getSession().saveOrUpdate(entity);
return entity;
}
@Override
public T makeTransient(T entity) {
getSession().delete(entity);
return entity;
}
@Override
public void flush() {
getSession().flush();
}
@Override
public void clear() {
getSession().clear();
}
protected List<T> findByCriteria(Criterion... criterion) {
return findByCriteria(null, criterion);
}
@SuppressWarnings({"unchecked"})
protected List<T> findByCriteria(Order order, Criterion... criterion) {
Criteria crit = getSession().createCriteria(getPersistentClass());
for (Criterion c : criterion) {
crit.add(c);
}
if (null != order)
{
crit.addOrder(order);
}
return crit.list();
}
}