Java tutorial
/* * Copyright 2011-2016 CAST, Inc. * * This file is part of the CAST Wicket Modules: * see <http://code.google.com/p/cast-wicket-modules>. * * The CAST Wicket Modules are free software: you can redistribute and/or * modify them under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * The CAST Wicket Modules are distributed in the hope that they will be * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this software. If not, see <http://www.gnu.org/licenses/>. */ package org.cast.cwm.data.builders; import lombok.Getter; import lombok.Setter; import net.databinder.models.hib.CriteriaBuilder; import org.apache.wicket.model.IDetachable; import org.hibernate.Criteria; import org.hibernate.criterion.Restrictions; /** * A simple CriteriaBuilder that locates a Prompt by its identifier. * * @author bgoldowsky * */ @Getter @Setter public class PromptCriteriaBuilder implements CriteriaBuilder, IDetachable { private static final long serialVersionUID = 1L; private String identifier; public PromptCriteriaBuilder(String identifier) { this.identifier = identifier; } @Override public void build(Criteria criteria) { if (identifier != null) { criteria.add(Restrictions.eq("identifier", identifier)); criteria.setMaxResults(1); // identifier is unique } criteria.setCacheable(true); } @Override public void detach() { // Nothing to detach, yet, but following other Criteria Builder Conventions. } }