diff --git a/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/instantiation/DynamicInstantiationWithJoinAndGroupByAndParameterTest.java b/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/instantiation/DynamicInstantiationWithJoinAndGroupByAndParameterTest.java new file mode 100644 index 0000000000..0977e3ffc3 --- /dev/null +++ b/hibernate-core/src/test/java/org/hibernate/orm/test/query/hql/instantiation/DynamicInstantiationWithJoinAndGroupByAndParameterTest.java @@ -0,0 +1,187 @@ +/* + * 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.hql.instantiation; + +import java.util.List; + +import org.hibernate.testing.orm.junit.EntityManagerFactoryScope; +import org.hibernate.testing.orm.junit.JiraKey; +import org.hibernate.testing.orm.junit.Jpa; +import org.junit.jupiter.api.AfterAll; +import org.junit.jupiter.api.BeforeAll; +import org.junit.jupiter.api.Test; + +import jakarta.persistence.CascadeType; +import jakarta.persistence.Entity; +import jakarta.persistence.FetchType; +import jakarta.persistence.GeneratedValue; +import jakarta.persistence.Id; +import jakarta.persistence.JoinColumn; +import jakarta.persistence.ManyToOne; +import jakarta.persistence.Table; +import jakarta.persistence.TypedQuery; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +/** + * @author Marco Belladelli + */ +@Jpa(annotatedClasses = { + DynamicInstantiationWithJoinAndGroupByAndParameterTest.Action.class, + DynamicInstantiationWithJoinAndGroupByAndParameterTest.UserEntity.class +}) +@JiraKey("HHH-15991") +public class DynamicInstantiationWithJoinAndGroupByAndParameterTest { + private static final String PARTNER_NUMBER = "1111111111"; + + @BeforeAll + public void setUp(EntityManagerFactoryScope scope) { + scope.inTransaction( entityManager -> { + final UserEntity user1 = new UserEntity( "John", "Tester" ); + entityManager.persist( user1 ); + entityManager.persist( new Action( PARTNER_NUMBER, "Test 1", user1 ) ); + entityManager.persist( new Action( PARTNER_NUMBER, "Test 2", user1 ) ); + } ); + } + + @AfterAll + public void tearDown(EntityManagerFactoryScope scope) { + scope.inTransaction( entityManager -> { + entityManager.createQuery( "delete from Action" ).executeUpdate(); + entityManager.createQuery( "delete from UserEntity" ).executeUpdate(); + } ); + } + + @Test + public void testIt(EntityManagerFactoryScope scope) { + scope.inTransaction( entityManager -> { + TypedQuery query = entityManager.createQuery( + "select new " + getClass().getName() + "$UserStatistic(u, count(a))" + + " from Action a inner join a.user u" + + " where a.partnerNumber = :partnerNumber" + + " group by u", + UserStatistic.class + ); + query.setParameter( "partnerNumber", PARTNER_NUMBER ); + UserStatistic result = query.getSingleResult(); + assertEquals( "John Tester", result.getName() ); + assertEquals( 2, result.getCount() ); + } ); + } + + @Entity(name = "UserEntity") + @Table(name = "UserEntity") + public static class UserEntity { + @Id + @GeneratedValue + private Long id; + + private String firstname; + + private String lastname; + + public UserEntity() { + } + + public UserEntity(String firstname, String lastname) { + this.firstname = firstname; + this.lastname = lastname; + } + + public Long getId() { + return id; + } + + public String getFirstname() { + return firstname; + } + + public void setFirstname(String firstname) { + this.firstname = firstname; + } + + public String getLastname() { + return lastname; + } + + public void setLastname(String lastname) { + this.lastname = lastname; + } + } + + @Entity(name = "Action") + @Table(name = "Action") + public static class Action { + @Id + @GeneratedValue + private Long id; + + private String partnerNumber; + + private String title; + + @ManyToOne(fetch = FetchType.LAZY, cascade = { CascadeType.MERGE }) + @JoinColumn(name = "fk_user_id") + private UserEntity user; + + public Action() { + } + + public Action(String partnerNumber, String title, UserEntity user) { + this.partnerNumber = partnerNumber; + this.title = title; + this.user = user; + } + + public Long getId() { + return id; + } + + public String getPartnerNumber() { + return partnerNumber; + } + + public void setPartnerNumber(String partnerNumber) { + this.partnerNumber = partnerNumber; + } + + public String getTitle() { + return title; + } + + public void setTitle(String title) { + this.title = title; + } + + public UserEntity getUser() { + return user; + } + + public void setUser(UserEntity user) { + this.user = user; + } + } + + public static class UserStatistic { + private final String name; + + private final Long count; + + public UserStatistic(UserEntity user, Long count) { + this.name = user != null ? user.getFirstname() + " " + user.getLastname() : null; + this.count = count; + } + + public String getName() { + return name; + } + + public Integer getCount() { + return count.intValue(); + } + } +}