From d783aba7dc21aa951a283468822191f23206d79b Mon Sep 17 00:00:00 2001 From: Erhan Karakaya Date: Thu, 9 May 2019 01:31:19 +0300 Subject: [PATCH] BAEL-2839 Added code samples (#6916) --- .../baeldung/derivedquery/entity/User.java | 70 +++++++ .../repository/UserRepository.java | 60 ++++++ .../repository/UserRepositoryTest.java | 172 ++++++++++++++++++ 3 files changed, 302 insertions(+) create mode 100644 persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/entity/User.java create mode 100644 persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/repository/UserRepository.java create mode 100644 persistence-modules/spring-data-jpa-2/src/test/java/com/baeldung/derivedquery/repository/UserRepositoryTest.java diff --git a/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/entity/User.java b/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/entity/User.java new file mode 100644 index 0000000000..e6d38f775b --- /dev/null +++ b/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/entity/User.java @@ -0,0 +1,70 @@ +package com.baeldung.derivedquery.entity; + +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.Id; +import javax.persistence.Table; +import java.time.ZonedDateTime; + +@Table(name = "users") +@Entity +public class User { + + @Id + @GeneratedValue + private Integer id; + private String name; + private Integer age; + private ZonedDateTime birthDate; + private Boolean active; + + public User() { + } + + public User(String name, Integer age, ZonedDateTime birthDate, Boolean active) { + this.name = name; + this.age = age; + this.birthDate = birthDate; + this.active = active; + } + + public Integer getId() { + return id; + } + + public void setId(Integer id) { + this.id = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public Integer getAge() { + return age; + } + + public void setAge(Integer age) { + this.age = age; + } + + public ZonedDateTime getBirthDate() { + return birthDate; + } + + public void setBirthDate(ZonedDateTime birthDate) { + this.birthDate = birthDate; + } + + public Boolean getActive() { + return active; + } + + public void setActive(Boolean active) { + this.active = active; + } +} diff --git a/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/repository/UserRepository.java b/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/repository/UserRepository.java new file mode 100644 index 0000000000..a23855d96d --- /dev/null +++ b/persistence-modules/spring-data-jpa-2/src/main/java/com/baeldung/derivedquery/repository/UserRepository.java @@ -0,0 +1,60 @@ +package com.baeldung.derivedquery.repository; + +import com.baeldung.derivedquery.entity.User; +import org.springframework.data.jpa.repository.JpaRepository; + +import java.time.ZonedDateTime; +import java.util.Collection; +import java.util.List; + +public interface UserRepository extends JpaRepository { + + List findByName(String name); + + List findByNameIs(String name); + + List findByNameEquals(String name); + + List findByNameIsNull(); + + List findByNameNot(String name); + + List findByNameIsNot(String name); + + List findByNameStartingWith(String name); + + List findByNameEndingWith(String name); + + List findByNameContaining(String name); + + List findByNameLike(String name); + + List findByAgeLessThan(Integer age); + + List findByAgeLessThanEqual(Integer age); + + List findByAgeGreaterThan(Integer age); + + List findByAgeGreaterThanEqual(Integer age); + + List findByAgeBetween(Integer startAge, Integer endAge); + + List findByBirthDateAfter(ZonedDateTime birthDate); + + List findByBirthDateBefore(ZonedDateTime birthDate); + + List findByActiveTrue(); + + List findByActiveFalse(); + + List findByAgeIn(Collection ages); + + List findByNameOrBirthDate(String name, ZonedDateTime birthDate); + + List findByNameOrBirthDateAndActive(String name, ZonedDateTime birthDate, Boolean active); + + List findByNameOrderByName(String name); + + List findByNameOrderByNameDesc(String name); + +} diff --git a/persistence-modules/spring-data-jpa-2/src/test/java/com/baeldung/derivedquery/repository/UserRepositoryTest.java b/persistence-modules/spring-data-jpa-2/src/test/java/com/baeldung/derivedquery/repository/UserRepositoryTest.java new file mode 100644 index 0000000000..188ed5d4d0 --- /dev/null +++ b/persistence-modules/spring-data-jpa-2/src/test/java/com/baeldung/derivedquery/repository/UserRepositoryTest.java @@ -0,0 +1,172 @@ +package com.baeldung.derivedquery.repository; + +import com.baeldung.Application; +import com.baeldung.derivedquery.entity.User; +import com.baeldung.derivedquery.repository.UserRepository; +import java.time.ZonedDateTime; +import java.util.Arrays; +import java.util.List; +import org.junit.After; +import org.junit.Before; +import org.junit.Test; +import org.junit.runner.RunWith; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.boot.test.context.SpringBootTest; +import org.springframework.test.context.junit4.SpringRunner; + +import static org.junit.Assert.assertEquals; + +@RunWith(SpringRunner.class) +@SpringBootTest(classes = Application.class) +public class UserRepositoryTest { + + private static final String USER_NAME_ADAM = "Adam"; + private static final String USER_NAME_EVE = "Eve"; + private static final ZonedDateTime BIRTHDATE = ZonedDateTime.now(); + + @Autowired + private UserRepository userRepository; + + @Before + public void setUp() { + + User user1 = new User(USER_NAME_ADAM, 25, BIRTHDATE, true); + User user2 = new User(USER_NAME_ADAM, 20, BIRTHDATE, false); + User user3 = new User(USER_NAME_EVE, 20, BIRTHDATE, true); + User user4 = new User(null, 30, BIRTHDATE, false); + + userRepository.saveAll(Arrays.asList(user1, user2, user3, user4)); + } + + @After + public void tearDown() { + + userRepository.deleteAll(); + } + + @Test + public void whenFindByName_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByName(USER_NAME_ADAM).size()); + } + + @Test + public void whenFindByNameIsNull_thenReturnsCorrectResult() { + + assertEquals(1, userRepository.findByNameIsNull().size()); + } + + @Test + public void whenFindByNameNot_thenReturnsCorrectResult() { + + assertEquals(USER_NAME_EVE, userRepository.findByNameNot(USER_NAME_ADAM).get(0).getName()); + } + + @Test + public void whenFindByNameStartingWith_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByNameStartingWith("A").size()); + } + + @Test + public void whenFindByNameEndingWith_thenReturnsCorrectResult() { + + assertEquals(1, userRepository.findByNameEndingWith("e").size()); + } + + @Test + public void whenByNameContaining_thenReturnsCorrectResult() { + + assertEquals(1, userRepository.findByNameContaining("v").size()); + } + + + @Test + public void whenByNameLike_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByNameEndingWith("%d%m").size()); + } + + @Test + public void whenByAgeLessThan_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByAgeLessThan(25).size()); + } + + + @Test + public void whenByAgeLessThanEqual_thenReturnsCorrectResult() { + + assertEquals(3, userRepository.findByAgeLessThanEqual(25).size()); + } + + @Test + public void whenByAgeGreaterThan_thenReturnsCorrectResult() { + + assertEquals(1, userRepository.findByAgeGreaterThan(25).size()); + } + + @Test + public void whenByAgeGreaterThanEqual_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByAgeGreaterThanEqual(25).size()); + } + + @Test + public void whenByAgeBetween_thenReturnsCorrectResult() { + + assertEquals(4, userRepository.findByAgeBetween(20, 30).size()); + } + + @Test + public void whenByBirthDateAfter_thenReturnsCorrectResult() { + + final ZonedDateTime yesterday = BIRTHDATE.minusDays(1); + assertEquals(4, userRepository.findByBirthDateAfter(yesterday).size()); + } + + @Test + public void whenByBirthDateBefore_thenReturnsCorrectResult() { + + final ZonedDateTime yesterday = BIRTHDATE.minusDays(1); + assertEquals(0, userRepository.findByBirthDateBefore(yesterday).size()); + } + + @Test + public void whenByActiveTrue_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByActiveTrue().size()); + } + + @Test + public void whenByActiveFalse_thenReturnsCorrectResult() { + + assertEquals(2, userRepository.findByActiveFalse().size()); + } + + + @Test + public void whenByAgeIn_thenReturnsCorrectResult() { + + final List ages = Arrays.asList(20, 25); + assertEquals(3, userRepository.findByAgeIn(ages).size()); + } + + @Test + public void whenByNameOrBirthDate() { + + assertEquals(4, userRepository.findByNameOrBirthDate(USER_NAME_ADAM, BIRTHDATE).size()); + } + + @Test + public void whenByNameOrBirthDateAndActive() { + + assertEquals(3, userRepository.findByNameOrBirthDateAndActive(USER_NAME_ADAM, BIRTHDATE, false).size()); + } + + @Test + public void whenByNameOrderByName() { + + assertEquals(2, userRepository.findByNameOrderByName(USER_NAME_ADAM).size()); + } +} \ No newline at end of file