Java tutorial
/* * $Id: DeckArchiveDaoImpl.java 1056 2006-10-27 22:49:28Z ivaynberg $ * $Revision: 1056 $ * $Date: 2006-10-27 15:49:28 -0700 (Fri, 27 Oct 2006) $ * * ============================================================================== * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package org.alienlabs.hatchetharry.persistence.dao; import org.alienlabs.hatchetharry.model.DeckArchive; import org.apache.wicket.spring.injection.annot.SpringBean; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.springframework.beans.factory.annotation.Required; import org.springframework.transaction.annotation.Isolation; import org.springframework.transaction.annotation.Transactional; /** * implements {@link DeckArchiveDao}. * * @author igor */ public class DeckArchiveDaoImpl implements DeckArchiveDao { private static final long serialVersionUID = 1L; @SpringBean private SessionFactory factory; public DeckArchiveDaoImpl() { } /** * Setter for session factory. Spring will use this to inject the session * factory into the dao. * * @param _factory * hibernate session factory */ @Required public void setSessionFactory(final SessionFactory _factory) { this.factory = _factory; } /** * Helper method for retrieving hibernate session * * @return hibernate session */ @Override public Session getSession() { return this.factory.getCurrentSession(); } /** * Load a {@link DeckArchive} from the DB, given it's <tt>id</tt> . * * @param id * The id of the DeckArchive to load. * @return DeckArchive */ @Override @Transactional(readOnly = true) public DeckArchive load(final long id) { return (DeckArchive) this.getSession().get(DeckArchive.class, Long.valueOf(id)); } /** * Save the DeckArchive to the DB * * @param deckArchive * @return persistent instance of DeckArchive */ @Override @Transactional(isolation = Isolation.READ_COMMITTED) public Long save(final DeckArchive deckArchive) { return (Long) this.getSession().save(deckArchive); } /** * Delete a {@link DeckArchive} from the DB, given it's <tt>id</tt>. * * @param id * The id of the DeckArchive to delete. */ @Override @Transactional(isolation = Isolation.READ_COMMITTED) public void delete(final long id) { this.getSession().delete(this.load(id)); } }