dupirefr/dupire.francois+pro@gmail.com [BAEL-1981] Query entities by dates and times with Spring Data JPA (#4737)

* [BAEL-1981] Article entity and repository + tests

* [BAEL-1981] Removing unnecessary fields

spring-boot-persistence/src/main/java/com/baeldung/domain/Article.java

@@ -0,0 +1,23 @@
+package com.baeldung.domain;
+
+import javax.persistence.*;
+import java.util.Date;
+
+@Entity
+public class Article {
+
+    @Id
+    @GeneratedValue
+    private Integer id;
+    @Temporal(TemporalType.DATE)
+    private Date publicationDate;
+    @Temporal(TemporalType.TIME)
+    private Date publicationTime;
+    @Temporal(TemporalType.TIMESTAMP)
+    private Date creationDateTime;
+
+    public Integer getId() {
+        return id;
+    }
+
+}

spring-boot-persistence/src/main/java/com/baeldung/repository/ArticleRepository.java

@@ -0,0 +1,22 @@
+package com.baeldung.repository;
+
+import com.baeldung.domain.Article;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.data.repository.query.Param;
+
+import java.util.Date;
+import java.util.List;
+
+public interface ArticleRepository extends JpaRepository<Article, Integer> {
+
+    List<Article> findAllByPublicationDate(Date publicationDate);
+
+    List<Article> findAllByPublicationTimeBetween(Date publicationTimeStart,
+                                                  Date publicationTimeEnd);
+
+    @Query("select a from Article a where a.creationDateTime <= :creationDateTime")
+    List<Article> findAllWithCreationDateTimeBefore(
+      @Param("creationDateTime") Date creationDateTime);
+
+}

spring-boot-persistence/src/test/java/com/baeldung/repository/ArticleRepositoryIntegrationTest.java

@@ -0,0 +1,66 @@
+package com.baeldung.repository;
+
+import com.baeldung.domain.Article;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.text.SimpleDateFormat;
+import java.util.Arrays;
+import java.util.List;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+@RunWith(SpringRunner.class)
+@DataJpaTest
+public class ArticleRepositoryIntegrationTest {
+
+    @Autowired
+    private ArticleRepository repository;
+
+    @Test
+    public void givenImportedArticlesWhenFindAllByPublicationDateThenArticles1And2Returned()
+      throws Exception {
+        List<Article> result = repository.findAllByPublicationDate(
+          new SimpleDateFormat("yyyy-MM-dd").parse("2018-01-01")
+        );
+
+        assertEquals(2, result.size());
+        assertTrue(result.stream()
+          .map(Article::getId)
+          .allMatch(id -> Arrays.asList(1, 2).contains(id))
+        );
+    }
+
+    @Test
+    public void givenImportedArticlesWhenFindAllByPublicationTimeBetweenThenArticles2And3Returned()
+      throws Exception {
+        List<Article> result = repository.findAllByPublicationTimeBetween(
+          new SimpleDateFormat("HH:mm").parse("15:15"),
+          new SimpleDateFormat("HH:mm").parse("16:30")
+        );
+
+        assertEquals(2, result.size());
+        assertTrue(result.stream()
+          .map(Article::getId)
+          .allMatch(id -> Arrays.asList(2, 3).contains(id))
+        );
+    }
+
+    @Test
+    public void givenImportedArticlesWhenFindAllWithCreationDateTimeBeforeThenArticles2And3Returned() throws Exception {
+        List<Article> result = repository.findAllWithCreationDateTimeBefore(
+          new SimpleDateFormat("yyyy-MM-dd HH:mm").parse("2017-12-15 10:00")
+        );
+
+        assertEquals(2, result.size());
+        assertTrue(result.stream()
+          .map(Article::getId)
+          .allMatch(id -> Arrays.asList(2, 3).contains(id))
+        );
+    }
+
+}

spring-boot-persistence/src/test/resources/application.properties

@@ -13,4 +13,4 @@ hibernate.cache.use_query_cache=true
 hibernate.cache.region.factory_class=org.hibernate.cache.ehcache.EhCacheRegionFactory
 
 spring.jpa.properties.hibernate.hbm2ddl.import_files=migrated_users.sql
-spring.datasource.data=import_*_users.sql
+spring.datasource.data=import_*_users.sql,import_articles.sql

spring-boot-persistence/src/test/resources/import_articles.sql

@@ -0,0 +1,3 @@
+insert into Article(id, publication_date, publication_time, creation_date_time) values(1, TO_DATE('01/01/2018', 'DD/MM/YYYY'), TO_DATE('15:00', 'HH24:MI'), TO_DATE('31/12/2017 07:30', 'DD/MM/YYYY HH24:MI'));
+insert into Article(id, publication_date, publication_time, creation_date_time) values(2, TO_DATE('01/01/2018', 'DD/MM/YYYY'), TO_DATE('15:30', 'HH24:MI'), TO_DATE('15/12/2017 08:00', 'DD/MM/YYYY HH24:MI'));
+insert into Article(id, publication_date, publication_time, creation_date_time) values(3, TO_DATE('15/12/2017', 'DD/MM/YYYY'), TO_DATE('16:00', 'HH24:MI'), TO_DATE('01/12/2017 13:45', 'DD/MM/YYYY HH24:MI'));