chesshog-db-etude/src/main/java/org/hedgecode/chess/service/jpa/JpaAuthorService.java

   1 /*
   2  * Copyright (c) 2018. Developed by Hedgecode.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *   http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.hedgecode.chess.service.jpa;
  18
  19 import java.util.Date;
  20 import java.util.List;
  21
  22 import javax.persistence.Query;
  23
  24 import org.hedgecode.chess.domain.Author;
  25 import org.hedgecode.chess.service.AuthorService;
  26
  27 /**
  28  *
  29  *
  30  * @author Dmitry Samoshin aka gotty
  31  */
  32 public class JpaAuthorService extends JpaDomainService<Author> implements AuthorService {
  33
  34     @Override
  35     @SuppressWarnings(
  36             "unchecked"
  37     )
  38     public List<Author> findAll() {
  39         return getEntityManager().createNamedQuery(
  40                 Author.FIND_ALL
  41         ).getResultList();
  42     }
  43
  44     @Override
  45     @SuppressWarnings(
  46             "unchecked"
  47     )
  48     public Author findById(Long id) {
  49         Query query = getEntityManager().createNamedQuery(
  50                 Author.FIND_BY_ID
  51         );
  52         query.setParameter(Author.ID_PARAMETER, id);
  53         return (Author) query.getSingleResult();
  54     }
  55
  56     @Override
  57     @SuppressWarnings(
  58             "unchecked"
  59     )
  60     public List<Author> findByName(String name) {
  61         Query query = getEntityManager().createNamedQuery(
  62                 Author.FIND_BY_NAME
  63         );
  64         query.setParameter(Author.NAME_PARAMETER, name);
  65         return query.getResultList();
  66     }
  67
  68     @Override
  69     @SuppressWarnings(
  70             "unchecked"
  71     )
  72     public List<Author> findByBirthDate(Date birthdate) {
  73         Query query = getEntityManager().createNamedQuery(
  74                 Author.FIND_BY_BIRTHDATE
  75         );
  76         query.setParameter(Author.BIRTHDATE_PARAMETER, birthdate);
  77         return query.getResultList();
  78     }
  79
  80 }