| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.superbiz.injection.h3jpa; |
| |
| import javax.ejb.Stateful; |
| import javax.persistence.EntityManager; |
| import javax.persistence.PersistenceContext; |
| import javax.persistence.PersistenceContextType; |
| import javax.persistence.Query; |
| import javax.persistence.criteria.*; |
| import javax.persistence.metamodel.EntityType; |
| import java.util.List; |
| |
| @Stateful |
| public class Movies { |
| |
| @PersistenceContext(unitName = "movie-unit", type = PersistenceContextType.EXTENDED) |
| private EntityManager entityManager; |
| |
| public void addMovie(Movie movie) throws Exception { |
| entityManager.persist(movie); |
| } |
| |
| public void deleteMovie(Movie movie) throws Exception { |
| entityManager.remove(movie); |
| } |
| |
| public List<Movie> getMovies() throws Exception { |
| Query query = entityManager.createQuery("SELECT m from Movie as m"); |
| return query.getResultList(); |
| } |
| |
| public int count(String field, String searchTerm) { |
| CriteriaBuilder qb = entityManager.getCriteriaBuilder(); |
| CriteriaQuery<Long> cq = qb.createQuery(Long.class); |
| Root<Movie> root = cq.from(Movie.class); |
| EntityType<Movie> type = entityManager.getMetamodel().entity(Movie.class); |
| cq.select(qb.count(root)); |
| if (field != null && searchTerm != null && !"".equals(field.trim()) && !"".equals(searchTerm.trim())) { |
| Path<String> path = root.get(type.getDeclaredSingularAttribute(field.trim(), String.class)); |
| Predicate condition = qb.like(path, "%" + searchTerm.trim() + "%"); |
| cq.where(condition); |
| } |
| return entityManager.createQuery(cq).getSingleResult().intValue(); |
| } |
| |
| } |