Java tutorial
/* * Copyright (c) 2012 Brown Bag Consulting. * This file is part of the ExpressUI project. * Author: Juan Osuna * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License Version 3 * as published by the Free Software Foundation with the addition of the * following permission added to Section 15 as permitted in Section 7(a): * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY * Brown Bag Consulting, Brown Bag Consulting DISCLAIMS THE WARRANTY OF * NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * This program 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License. * * You can be released from the requirements of the license by purchasing * a commercial license. Buying such a license is mandatory as soon as you * develop commercial activities involving the ExpressUI software without * disclosing the source code of your own applications. These activities * include: offering paid services to customers as an ASP, providing * services from a web application, shipping ExpressUI with a closed * source product. * * For more information, please contact Brown Bag Consulting at this * address: juan@brownbagconsulting.com. */ package com.expressui.sample.dao.query; import com.expressui.core.dao.query.StructuredEntityQuery; import com.expressui.core.entity.security.User; import com.expressui.sample.entity.Profile; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Component; import javax.persistence.TypedQuery; import javax.persistence.criteria.*; import java.io.Serializable; import java.util.ArrayList; import java.util.List; import static org.springframework.beans.factory.config.BeanDefinition.SCOPE_PROTOTYPE; @Component @Scope(SCOPE_PROTOTYPE) public class ProfileQuery extends StructuredEntityQuery<Profile> { private String loginName; public String getLoginName() { return loginName; } public void setLoginName(String loginName) { this.loginName = loginName; } @Override public List<Predicate> buildCriteria(CriteriaBuilder builder, CriteriaQuery<Profile> query, Root<Profile> profile) { List<Predicate> predicates = new ArrayList<Predicate>(); if (hasValue(loginName)) { ParameterExpression<String> loginNameExp = builder.parameter(String.class, "loginName"); predicates.add( builder.like(builder.upper(profile.<User>get("user").<String>get("loginName")), loginNameExp)); } return predicates; } @Override public void setParameters(TypedQuery<Serializable> typedQuery) { if (hasValue(loginName)) { typedQuery.setParameter("loginName", "%" + loginName.toUpperCase() + "%"); } } @Override public Path buildOrderBy(Root<Profile> profile) { if (getOrderByPropertyId().equals("user.loginName")) { return profile.join("user", JoinType.LEFT).get("loginName"); } else { return null; } } @Override public void addFetchJoins(Root<Profile> profile) { profile.fetch("user", JoinType.LEFT); } @Override public String toString() { return "ProfileQuery{" + "loginName='" + loginName + '\'' + '}'; } }