Java tutorial
/** * SAHARA Scheduling Server * * Schedules and assigns local laboratory rigs. * * @license See LICENSE in the top level directory for complete license terms. * * Copyright (c) 2010, University of Technology, Sydney * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the University of Technology, Sydney nor the names * of its contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * @author Michael Diponio (mdiponio) * @date 27th March 2010 */ package au.edu.uts.eng.remotelabs.schedserver.dataaccess.dao; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Restrictions; import au.edu.uts.eng.remotelabs.schedserver.dataaccess.entities.ResourcePermission; import au.edu.uts.eng.remotelabs.schedserver.dataaccess.entities.User; import au.edu.uts.eng.remotelabs.schedserver.dataaccess.entities.UserLock; /** * Data access object for the {@link UserLock} entity. */ public class UserLockDao extends GenericDao<UserLock> { public UserLockDao() { super(UserLock.class); } public UserLockDao(Session ses) { super(ses, UserLock.class); } /** * Finds the user lock with is for the specified user and specified * resource permission. * * @param user user who is locked * @param perm resource which is locked * @return user lock or null if not found */ public UserLock findLock(User user, ResourcePermission perm) { Criteria cri = this.session.createCriteria(UserLock.class); cri.add(Restrictions.eq("user", user)); cri.add(Restrictions.eq("resourcePermission", perm)); return (UserLock) cri.uniqueResult(); } }