HHH-17135 Add test for issue
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Marco Belladelli
Christian Beikov
parent
1735b984d8
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ae33808f71
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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.jpa.criteria.nulliteral;
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import java.util.List;
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import org.hibernate.annotations.Imported;
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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.CascadeType;
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import jakarta.persistence.Entity;
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import jakarta.persistence.GeneratedValue;
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import jakarta.persistence.Id;
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import jakarta.persistence.JoinColumn;
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import jakarta.persistence.ManyToOne;
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import jakarta.persistence.OneToMany;
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import jakarta.persistence.Tuple;
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import jakarta.persistence.criteria.CriteriaBuilder;
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import jakarta.persistence.criteria.CriteriaQuery;
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import jakarta.persistence.criteria.CriteriaUpdate;
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import jakarta.persistence.criteria.Root;
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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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NullLiteralEntityConstructTest.City.class,
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NullLiteralEntityConstructTest.Country.class,
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NullLiteralEntityConstructTest.CityProjection.class,
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} )
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@SessionFactory
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@Jira( "https://hibernate.atlassian.net/browse/HHH-17135" )
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public class NullLiteralEntityConstructTest {
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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 City( "London", "England", new Country( "United Kingdom", "GBR" ) ) );
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session.persist( new City( "Rome", "Lazio", new Country( "Italy", "ITA" ) ) );
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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 City" ).executeUpdate();
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session.createMutationQuery( "delete from Country" ).executeUpdate();
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} );
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}
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@Test
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public void testNullLiteralSelect(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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final CriteriaBuilder cb = session.getCriteriaBuilder();
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final CriteriaQuery<Tuple> cq = cb.createQuery( Tuple.class );
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final Root<City> cityRoot = cq.from( City.class );
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cq.multiselect( cityRoot.get( "name" ), cb.nullLiteral( Country.class ) )
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.where( cb.equal( cityRoot.get( "name" ), "London" ) );
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final Tuple result = session.createQuery( cq ).getSingleResult();
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assertThat( result.get( 0 ) ).isEqualTo( "London" );
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assertThat( result.get( 1 ) ).isNull();
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} );
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}
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@Test
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public void testNullLiteralConstruct(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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final CriteriaBuilder cb = session.getCriteriaBuilder();
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final CriteriaQuery<CityProjection> cq = cb.createQuery( CityProjection.class );
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final Root<City> cityRoot = cq.from( City.class );
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cq.select( cb.construct(
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CityProjection.class,
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cityRoot.get( "id" ),
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cityRoot.get( "name" ),
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cityRoot.get( "state" ),
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cb.nullLiteral( Country.class )
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) ).where( cb.equal( cityRoot.get( "name" ), "London" ) );
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final CityProjection result = session.createQuery( cq ).getSingleResult();
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assertThat( result.getName() ).isEqualTo( "London" );
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assertThat( result.getCountryName() ).isNull();
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} );
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}
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@Test
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public void testSimpleConstruct(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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final CriteriaBuilder cb = session.getCriteriaBuilder();
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final CriteriaQuery<CityProjection> cq = cb.createQuery( CityProjection.class );
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final Root<City> root = cq.from( City.class );
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cq.select( cb.construct(
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CityProjection.class,
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root.get( "id" ),
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root.get( "name" ),
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root.get( "state" ),
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root.get( "country" )
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) ).where( cb.equal( root.get( "name" ), "London" ) );
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final CityProjection result = session.createQuery( cq ).getSingleResult();
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assertThat( result.getName() ).isEqualTo( "London" );
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assertThat( result.getCountryName() ).isEqualTo( "United Kingdom" );
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} );
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}
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@Test
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public void testSetNullLiteral(SessionFactoryScope scope) {
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scope.inTransaction( session -> {
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final CriteriaBuilder cb = session.getCriteriaBuilder();
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final CriteriaUpdate<City> cu = cb.createCriteriaUpdate( City.class );
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final Root<City> root = cu.from( City.class );
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cu.set( "country", cb.nullLiteral( Country.class ) ).where( cb.equal( root.get( "name" ), "Rome" ) );
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session.createMutationQuery( cu ).executeUpdate();
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} );
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scope.inTransaction( session -> assertThat(
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session.createQuery( "where name = 'Rome'", City.class )
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.getSingleResult()
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.getCountry() ).isNull()
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);
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}
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@Entity( name = "City" )
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public static class City {
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@Id
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@GeneratedValue
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private Long id;
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private String name;
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private String state;
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@ManyToOne( cascade = CascadeType.PERSIST )
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@JoinColumn( name = "country_id" )
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private Country country;
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public City() {
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}
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public City(String name, String state, Country country) {
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this.name = name;
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this.state = state;
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this.country = country;
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}
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public Country getCountry() {
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return country;
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}
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}
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@Imported
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public static class CityProjection {
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private Long id;
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private String name;
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private String state;
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private String countryName;
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public CityProjection(Long id, String name, String state, Country country) {
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this.id = id;
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this.name = name;
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this.state = state;
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if ( country != null ) {
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this.countryName = country.getName();
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}
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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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public String getCountryName() {
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return countryName;
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}
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}
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@Entity( name = "Country" )
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public static class Country {
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@Id
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@GeneratedValue
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private Long id;
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private String name;
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private String isoCode;
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@OneToMany( mappedBy = "country" )
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private List<City> cities;
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public Country() {
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}
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public Country(String name, String isoCode) {
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this.name = name;
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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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}
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