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Merge pull request #15391 from azhwani/BAEL-7280 

BAEL-7280: How to get last record ordered by date in Spring Data
This commit is contained in:
davidmartinezbarua 2023-12-19 19:57:14 -03:00 committed by GitHub
parent af2476da3a 841599a579
commit af56780cfa
5 changed files with 109 additions and 1 deletions
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40
persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/listrepositories/lastrecord/Post.java Normal file
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@ -0,0 +1,40 @@
package com.baeldung.spring.data.jpa.listrepositories.lastrecord;
import java.time.LocalDate;
import jakarta.persistence.Entity;
import jakarta.persistence.Id;
@Entity
public class Post {
@Id
private Long id;
private String title;
private LocalDate publicationDate;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public LocalDate getPublicationDate() {
return publicationDate;
}
public void setPublicationDate(LocalDate publicationDate) {
this.publicationDate = publicationDate;
}
}

15
persistence-modules/spring-data-jpa-repo-3/src/main/java/com/baeldung/spring/data/jpa/listrepositories/lastrecord/PostRepository.java Normal file
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@ -0,0 +1,15 @@
package com.baeldung.spring.data.jpa.listrepositories.lastrecord;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
public interface PostRepository extends JpaRepository<Post, Integer> {
Post findFirstByOrderByPublicationDateDesc();
Post findTopByOrderByPublicationDateDesc();
@Query("SELECT p FROM Post p ORDER BY p.publicationDate DESC LIMIT 1")
Post findLastPost();
}

8
persistence-modules/spring-data-jpa-repo-3/src/main/resources/data.sql
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@ -1,4 +1,10 @@
INSERT INTO person (id, first_name, last_name) VALUES(1, 'Azhrioun', 'Abderrahim');
INSERT INTO person (id, first_name, last_name) VALUES(2, 'Brian', 'Wheeler');
INSERT INTO person (id, first_name, last_name) VALUES(3, 'Stella', 'Anderson');
INSERT INTO person (id, first_name, last_name) VALUES(4, 'Stella', 'Wheeler');
INSERT INTO person (id, first_name, last_name) VALUES(4, 'Stella', 'Wheeler');
INSERT INTO post (id, title, publication_date) VALUES(1, 'Facebook post', '2020-11-10');
INSERT INTO post (id, title, publication_date) VALUES(2, 'Instagram post', '2020-12-24');
INSERT INTO post (id, title, publication_date) VALUES(3, 'Twitter post', '2023-01-10');
INSERT INTO post (id, title, publication_date) VALUES(4, 'tiktok post', '2023-03-18');
INSERT INTO post (id, title, publication_date) VALUES(5, 'Pinterest post', '2023-09-09');

7
persistence-modules/spring-data-jpa-repo-3/src/main/resources/schema.sql
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@ -3,4 +3,11 @@ CREATE TABLE person(
id INT PRIMARY KEY,
first_name VARCHAR(200),
last_name VARCHAR(200)
);
DROP TABLE IF EXISTS post;
CREATE TABLE post(
id INT PRIMARY KEY,
title VARCHAR(200),
publication_date DATE
)

40
persistence-modules/spring-data-jpa-repo-3/src/test/java/com/baeldung/spring/data/jpa/listrepositories/lastrecord/PostRepositoryIntegrationTest.java Normal file
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package com.baeldung.spring.data.jpa.listrepositories.lastrecord;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
@DataJpaTest
class PostRepositoryIntegrationTest {
@Autowired
private PostRepository postRepository;
@Test
void givenPosts_whenUsingFindFirstDerivedQuery_thenReturnLastPost() {
Post post = postRepository.findFirstByOrderByPublicationDateDesc();
assertNotNull(post);
assertEquals(5, post.getId());
}
@Test
void givenPosts_whenUsingFindTopDerivedQuery_thenReturnLastPost() {
Post post = postRepository.findTopByOrderByPublicationDateDesc();
assertNotNull(post);
assertEquals(5, post.getId());
}
@Test
void givenPosts_whenUsingQueryAnnotation_thenReturnLastPost() {
Post post = postRepository.findLastPost();
assertNotNull(post);
assertEquals(5, post.getId());
}
}