diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/query/ManyToManyGroupByOrderByTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/query/ManyToManyGroupByOrderByTest.java new file mode 100644 index 0000000000..3ce4623b6c --- /dev/null +++ b/hibernate-core/src/test/java/org/hibernate/orm/test/query/ManyToManyGroupByOrderByTest.java @@ -0,0 +1,173 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * License: GNU Lesser General Public License (LGPL), version 2.1 or later + * See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html + */ +package org.hibernate.orm.test.query; + +import java.util.HashSet; +import java.util.Set; + +import org.hibernate.testing.orm.junit.DomainModel; +import org.hibernate.testing.orm.junit.Jira; +import org.hibernate.testing.orm.junit.SessionFactory; +import org.hibernate.testing.orm.junit.SessionFactoryScope; +import org.junit.jupiter.api.AfterAll; +import org.junit.jupiter.api.BeforeAll; +import org.junit.jupiter.api.Test; + +import jakarta.persistence.Entity; +import jakarta.persistence.GeneratedValue; +import jakarta.persistence.Id; +import jakarta.persistence.JoinTable; +import jakarta.persistence.ManyToMany; +import jakarta.persistence.Tuple; + +import static org.assertj.core.api.Assertions.assertThat; + +/** + * @author Marco Belladelli + */ +@DomainModel( annotatedClasses = { + ManyToManyGroupByOrderByTest.Person.class, + ManyToManyGroupByOrderByTest.Cat.class, +} ) +@SessionFactory +@Jira( "https://hibernate.atlassian.net/browse/HHH-17837" ) +public class ManyToManyGroupByOrderByTest { + @Test + public void testSelectEntity(SessionFactoryScope scope) { + // explicit join group by + scope.inTransaction( session -> { + final Person result = session.createQuery( + "select owner from Cat cat join cat.owners owner group by owner", + Person.class + ).getSingleResult(); + assertThat( result.getId() ).isEqualTo( 1L ); + } ); + // explicit join group by + order by + scope.inTransaction( session -> { + final Person result = session.createQuery( + "select owner from Cat cat join cat.owners owner group by owner order by owner", + Person.class + ).getSingleResult(); + assertThat( result.getId() ).isEqualTo( 1L ); + } ); + // implicit join group by + scope.inTransaction( session -> { + final Person result = session.createQuery( + "select element(cat.owners) from Cat cat group by element(cat.owners)", + Person.class + ).getSingleResult(); + assertThat( result.getId() ).isEqualTo( 1L ); + } ); + // implicit join group by + order by + scope.inTransaction( session -> { + final Person result = session.createQuery( + "select element(cat.owners) from Cat cat group by element(cat.owners) order by element(cat.owners)", + Person.class + ).getSingleResult(); + assertThat( result.getId() ).isEqualTo( 1L ); + } ); + } + + @Test + public void testSelectAssociationId(SessionFactoryScope scope) { + // explicit join group by + scope.inTransaction( session -> { + final Tuple result = session.createQuery( + "select owner.id, owner.name from Cat cat join cat.owners owner group by owner", + Tuple.class + ).getSingleResult(); + assertThat( result.get( 0, Long.class ) ).isEqualTo( 1L ); + assertThat( result.get( 1, String.class ) ).isEqualTo( "Marco" ); + } ); + // explicit join group by + order by + scope.inTransaction( session -> { + final Tuple result = session.createQuery( + "select owner.id, owner.name from Cat cat join cat.owners owner group by owner order by owner", + Tuple.class + ).getSingleResult(); + assertThat( result.get( 0, Long.class ) ).isEqualTo( 1L ); + assertThat( result.get( 1, String.class ) ).isEqualTo( "Marco" ); + } ); + // implicit join group by + scope.inTransaction( session -> { + final Tuple result = session.createQuery( + "select element(cat.owners).id from Cat cat group by element(cat.owners)", + Tuple.class + ).getSingleResult(); + assertThat( result.get( 0, Long.class ) ).isEqualTo( 1L ); + } ); + // implicit join group by + order by + scope.inTransaction( session -> { + final Tuple result = session.createQuery( + "select element(cat.owners).id from Cat cat group by element(cat.owners) order by element(cat.owners)", + Tuple.class + ).getSingleResult(); + assertThat( result.get( 0, Long.class ) ).isEqualTo( 1L ); + } ); + } + + @BeforeAll + public void setUp(SessionFactoryScope scope) { + scope.inTransaction( session -> { + final Cat cat = new Cat(); + final Person owner = new Person( 1L, "Marco" ); + cat.addToOwners( owner ); + session.persist( owner ); + session.persist( cat ); + } ); + } + + @AfterAll + public void tearDown(SessionFactoryScope scope) { + scope.inTransaction( session -> { + session.createMutationQuery( "delete from Cat" ).executeUpdate(); + session.createMutationQuery( "delete from Person" ).executeUpdate(); + } ); + } + + @Entity( name = "Person" ) + static class Person { + @Id + private Long id; + + private String name; + + public Person() { + } + + public Person(Long id, String name) { + this.id = id; + this.name = name; + } + + @ManyToMany( mappedBy = "owners" ) + protected Set ownedCats = new HashSet<>(); + + public Long getId() { + return id; + } + } + + @Entity( name = "Cat" ) + static class Cat { + @Id + @GeneratedValue + protected Long id; + + @JoinTable + @ManyToMany + private Set owners = new HashSet(); + + public Set getOwners() { + return this.owners; + } + + public void addToOwners(Person person) { + owners.add( person ); + } + } +}