HHH-17413 Add test for issue
This commit is contained in:
Marco Belladelli
Christian Beikov
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ef155c22c1
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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.List;
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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.Entity;
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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.Tuple;
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import static org.assertj.core.api.Assertions.assertThat;
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/**
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* @author Marco Belladelli
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*/
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@DomainModel( annotatedClasses = {
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CaseStatementWithTypeTest.SingleParent.class,
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CaseStatementWithTypeTest.SingleChildA.class,
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CaseStatementWithTypeTest.SingleChildB.class,
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CaseStatementWithTypeTest.JoinedParent.class,
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CaseStatementWithTypeTest.JoinedChildA.class,
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CaseStatementWithTypeTest.JoinedChildB.class,
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CaseStatementWithTypeTest.UnionParent.class,
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CaseStatementWithTypeTest.UnionChildA.class,
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CaseStatementWithTypeTest.UnionChildB.class,
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} )
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@SessionFactory
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@Jira( "https://hibernate.atlassian.net/browse/HHH-17413" )
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public class CaseStatementWithTypeTest {
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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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session.persist( new SingleChildA( 1L ) );
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session.persist( new SingleChildB( 2L ) );
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session.persist( new JoinedChildA( 1L ) );
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session.persist( new JoinedChildB( 2L ) );
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session.persist( new UnionChildA( 1L ) );
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session.persist( new UnionChildB( 2L ) );
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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 SingleParent" ).executeUpdate();
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session.createMutationQuery( "delete from JoinedParent" ).executeUpdate();
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session.createMutationQuery( "delete from UnionParent" ).executeUpdate();
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} );
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}
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@Test
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public void testSingleTableInheritance(SessionFactoryScope scope) {
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executeQuery( scope, SingleParent.class, SingleChildA.class, SingleChildB.class, false );
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executeQuery( scope, SingleParent.class, SingleChildA.class, SingleChildB.class, true );
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}
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@Test
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public void testJoinedInheritance(SessionFactoryScope scope) {
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executeQuery( scope, JoinedParent.class, JoinedChildA.class, JoinedChildB.class, false );
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executeQuery( scope, JoinedParent.class, JoinedChildA.class, JoinedChildB.class, true );
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}
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@Test
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public void testTablePerClassInheritance(SessionFactoryScope scope) {
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executeQuery( scope, UnionParent.class, UnionChildA.class, UnionChildB.class, false );
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executeQuery( scope, UnionParent.class, UnionChildA.class, UnionChildB.class, true );
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}
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private <T> void executeQuery(
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SessionFactoryScope scope,
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Class<T> parent,
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Class<? extends T> childA,
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Class<? extends T> childB,
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boolean orderBy) {
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scope.inTransaction( session -> {
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final StringBuilder sb = new StringBuilder( "select p.id" );
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final String caseExpression = String.format(
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"case type(p) when %s then 'A' when %s then 'B' else null end",
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childA.getSimpleName(),
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childB.getSimpleName()
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);
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if ( orderBy ) {
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sb.append( String.format( " from %s p order by %s", parent.getSimpleName(), caseExpression ) );
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}
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else {
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sb.append( String.format( ", %s from %s p", caseExpression, parent.getSimpleName() ) );
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}
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final List<Tuple> resultList = session.createQuery( sb.toString(), Tuple.class ).getResultList();
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assertThat( resultList ).hasSize( 2 );
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if ( orderBy ) {
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assertThat( resultList.stream().map( t -> t.get( 0, Long.class ) ) ).containsExactly( 1L, 2L );
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}
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else {
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assertThat( resultList.stream().map( t -> t.get( 1, String.class ) ) ).contains( "A", "B" );
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}
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} );
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}
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@Entity( name = "SingleParent" )
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@Inheritance( strategy = InheritanceType.SINGLE_TABLE )
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public static class SingleParent {
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@Id
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private Long id;
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public SingleParent() {
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}
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public SingleParent(Long id) {
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this.id = id;
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}
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}
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@Entity( name = "SingleChildA" )
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public static class SingleChildA extends SingleParent {
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public SingleChildA() {
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}
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public SingleChildA(Long id) {
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super( id );
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}
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}
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@Entity( name = "SingleChildB" )
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public static class SingleChildB extends SingleParent {
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public SingleChildB() {
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}
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public SingleChildB(Long id) {
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super( id );
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}
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}
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@Entity( name = "JoinedParent" )
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@Inheritance( strategy = InheritanceType.JOINED )
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public static class JoinedParent {
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@Id
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private Long id;
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public JoinedParent() {
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}
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public JoinedParent(Long id) {
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this.id = id;
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}
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}
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@Entity( name = "JoinedChildA" )
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public static class JoinedChildA extends JoinedParent {
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public JoinedChildA() {
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}
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public JoinedChildA(Long id) {
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super( id );
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}
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}
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@Entity( name = "JoinedChildB" )
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public static class JoinedChildB extends JoinedParent {
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public JoinedChildB() {
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}
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public JoinedChildB(Long id) {
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super( id );
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}
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}
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@Entity( name = "UnionParent" )
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@Inheritance( strategy = InheritanceType.TABLE_PER_CLASS )
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public static class UnionParent {
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@Id
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private Long id;
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public UnionParent() {
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}
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public UnionParent(Long id) {
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this.id = id;
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}
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}
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@Entity( name = "UnionChildA" )
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public static class UnionChildA extends UnionParent {
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public UnionChildA() {
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}
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public UnionChildA(Long id) {
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super( id );
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}
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}
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@Entity( name = "UnionChildB" )
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public static class UnionChildB extends UnionParent {
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public UnionChildB() {
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}
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public UnionChildB(Long id) {
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super( id );
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}
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}
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}
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