HHH-17113 Add test for issue
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Marco Belladelli
Christian Beikov
parent
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/*
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* Hibernate, Relational Persistence for Idiomatic Java
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*
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* License: GNU Lesser General Public License (LGPL), version 2.1 or later
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* See the lgpl.txt file in the root directory or http://www.gnu.org/licenses/lgpl-2.1.html
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*/
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package org.hibernate.orm.test.inheritance.discriminator;
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import java.util.ArrayList;
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import java.util.List;
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import org.hibernate.Hibernate;
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import org.hibernate.annotations.DiscriminatorOptions;
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import org.hibernate.testing.jdbc.SQLStatementInspector;
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import org.hibernate.testing.orm.junit.DomainModel;
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import org.hibernate.testing.orm.junit.Jira;
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import org.hibernate.testing.orm.junit.SessionFactory;
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import org.hibernate.testing.orm.junit.SessionFactoryScope;
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import org.junit.jupiter.api.AfterAll;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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import jakarta.persistence.DiscriminatorColumn;
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import jakarta.persistence.DiscriminatorValue;
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import jakarta.persistence.Entity;
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import jakarta.persistence.FetchType;
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import jakarta.persistence.Id;
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import jakarta.persistence.Inheritance;
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import jakarta.persistence.InheritanceType;
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import jakarta.persistence.JoinColumn;
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import jakarta.persistence.OneToMany;
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import jakarta.persistence.Table;
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import static org.assertj.core.api.Assertions.assertThat;
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/**
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* @author Andrea Boriero
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* @author Marco Belladelli
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*/
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@DomainModel( annotatedClasses = {
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JoinedInheritanceForceDiscriminatorTest.CommonBase.class,
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JoinedInheritanceForceDiscriminatorTest.ElementEntity.class,
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JoinedInheritanceForceDiscriminatorTest.AnotherEntity.class,
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JoinedInheritanceForceDiscriminatorTest.ElementGroup.class
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} )
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@SessionFactory( useCollectingStatementInspector = true )
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@Jira( "https://hibernate.atlassian.net/browse/HHH-17113" )
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public class JoinedInheritanceForceDiscriminatorTest {
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@BeforeAll
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public void setUp(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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final ElementEntity element = new ElementEntity( 1L, "element_1" );
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session.persist( element );
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final AnotherEntity another = new AnotherEntity( 2L, "another_2" );
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session.persist( another );
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final ElementGroup elementGroup = new ElementGroup( 3L );
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elementGroup.addElement( element );
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session.persist( elementGroup );
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} );
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scope.inTransaction( session -> {
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// Emulate association with AnotherEntity on the same element_table
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session.createNativeMutationQuery( "update element_table set group_id = 3 where id = 2" ).executeUpdate();
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} );
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}
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@AfterAll
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public void tearDown(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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session.createMutationQuery( "delete from CommonBase" ).executeUpdate();
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session.createMutationQuery( "delete from ElementGroup" ).executeUpdate();
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} );
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}
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@Test
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public void testFindAndLoad(SessionFactoryScope scope) {
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final SQLStatementInspector inspector = scope.getCollectingStatementInspector();
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scope.inTransaction( session -> {
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final ElementGroup group = session.find( ElementGroup.class, 3L );
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inspector.clear();
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final List<ElementEntity> elements = group.getElements();
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assertThat( Hibernate.isInitialized( elements ) ).isFalse();
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assertThat( elements ).hasSize( 1 );
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inspector.assertNumberOfOccurrenceInQueryNoSpace( 0, "disc_col", 1 );
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final CommonBase commonBase = elements.get( 0 );
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assertThat( commonBase.getId() ).isEqualTo( 1L );
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assertThat( commonBase.getName() ).isEqualTo( "element_1" );
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} );
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}
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@Test
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public void testQueryAndLoad(SessionFactoryScope scope) {
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final SQLStatementInspector inspector = scope.getCollectingStatementInspector();
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scope.inTransaction( session -> {
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final ElementGroup group = session.createQuery(
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"from ElementGroup",
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ElementGroup.class
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).getSingleResult();
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inspector.clear();
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final List<ElementEntity> elements = group.getElements();
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assertThat( Hibernate.isInitialized( elements ) ).isFalse();
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assertThat( elements ).hasSize( 1 );
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inspector.assertNumberOfOccurrenceInQueryNoSpace( 0, "disc_col", 1 );
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final CommonBase commonBase = elements.get( 0 );
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assertThat( commonBase.getId() ).isEqualTo( 1L );
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assertThat( commonBase.getName() ).isEqualTo( "element_1" );
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} );
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}
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@Test
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public void testQueryAndJoinFetch(SessionFactoryScope scope) {
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final SQLStatementInspector inspector = scope.getCollectingStatementInspector();
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scope.inTransaction( session -> {
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final ElementGroup group = session.createQuery(
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"from ElementGroup g join fetch g.elements",
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ElementGroup.class
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).getSingleResult();
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inspector.assertNumberOfOccurrenceInQueryNoSpace( 0, "disc_col", 1 );
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final List<ElementEntity> elements = group.getElements();
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assertThat( Hibernate.isInitialized( elements ) ).isTrue();
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assertThat( elements ).hasSize( 1 );
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final CommonBase commonBase = elements.get( 0 );
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assertThat( commonBase.getId() ).isEqualTo( 1L );
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assertThat( commonBase.getName() ).isEqualTo( "element_1" );
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} );
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}
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@Inheritance( strategy = InheritanceType.JOINED )
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@DiscriminatorColumn( name = "disc_col" )
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@DiscriminatorOptions( force = true )
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@Entity( name = "CommonBase" )
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public static class CommonBase {
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@Id
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protected Long id;
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protected String name;
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public CommonBase() {
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}
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public CommonBase(Long id, String name) {
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this.id = id;
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this.name = name;
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}
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public Long getId() {
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return id;
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}
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public String getName() {
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return name;
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}
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}
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@Entity( name = "ElementEntity" )
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@DiscriminatorValue( "element" )
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@Table( name = "element_table" )
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public static class ElementEntity extends CommonBase {
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public ElementEntity() {
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}
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public ElementEntity(Long id, String name) {
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super( id, name );
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}
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}
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@Entity( name = "AnotherEntity" )
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@DiscriminatorValue( "another" )
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@Table( name = "element_table" )
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public static class AnotherEntity extends CommonBase {
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public AnotherEntity() {
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}
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public AnotherEntity(Long id, String name) {
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super( id, name );
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}
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}
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@Entity( name = "ElementGroup" )
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public static class ElementGroup {
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@Id
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protected Long id;
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@OneToMany( fetch = FetchType.LAZY )
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@JoinColumn( name = "group_id" )
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private List<ElementEntity> elements = new ArrayList<>();
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public ElementGroup() {
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}
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public ElementGroup(Long id) {
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this.id = id;
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}
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public Long getId() {
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return id;
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}
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public List<ElementEntity> getElements() {
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return elements;
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}
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public void addElement(ElementEntity element) {
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elements.add( element );
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}
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}
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}
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