Java tutorial
/** * The contents of this file are subject to the OpenMRS Public License * Version 1.0 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://license.openmrs.org * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the * License for the specific language governing rights and limitations * under the License. * * Copyright (C) OpenMRS, LLC. All Rights Reserved. */ package org.openmrs.module.logmanager.db.hibernate; import java.util.List; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.hibernate.SQLQuery; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.openmrs.api.db.DAOException; import org.openmrs.module.logmanager.Preset; import org.openmrs.module.logmanager.db.LogManagerDAO; /** * Hibernate implementation of the module data access object interface */ public class HibernateLogManagerDAO implements LogManagerDAO { protected static final Log log = LogFactory.getLog(HibernateLogManagerDAO.class); protected SessionFactory sessionFactory; /** * Set session factory * @param sessionFactory */ public void setSessionFactory(SessionFactory sessionFactory) { this.sessionFactory = sessionFactory; } /** * @see LogManagerDAO#getMySQLVersion() */ public String getMySQLVersion() throws DAOException { Session session = sessionFactory.getCurrentSession(); SQLQuery query = session.createSQLQuery("SELECT VERSION();"); return query.uniqueResult().toString(); } /** * @see LogManagerDAO#getPreset(int) */ public Preset getPreset(int presetId) throws DAOException { Session session = sessionFactory.getCurrentSession(); return (Preset) session.load(Preset.class, presetId); } /** * @see LogManagerDAO#getPresets() */ @SuppressWarnings("unchecked") public List<Preset> getPresets() throws DAOException { Session session = sessionFactory.getCurrentSession(); return session.createCriteria(Preset.class).list(); } /** * @see LogManagerDAO#savePreset(Preset) */ public void savePreset(Preset preset) throws DAOException { Session session = sessionFactory.getCurrentSession(); session.saveOrUpdate(preset); } /** * @see LogManagerDAO#deletePreset(Preset) */ public void deletePreset(Preset preset) throws DAOException { Session session = sessionFactory.getCurrentSession(); session.delete(preset); } }