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hibernate-orm
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Fix NPE in SingularAssociationAttributeMapping#resolveCircularFetch(...) method

This commit is contained in:
Andrea Boriero 2020-02-01 10:49:46 +00:00
parent 9633345dbb
commit 7de3be2492
3 changed files with 59 additions and 55 deletions
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10
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/SingularAssociationAttributeMapping.java
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@ -13,6 +13,7 @@ import java.util.List;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.NotYetImplementedFor6Exception;
import org.hibernate.boot.model.source.spi.EmbeddedAttributeMapping;
import org.hibernate.engine.FetchStrategy;
import org.hibernate.engine.FetchTiming;
import org.hibernate.mapping.ManyToOne;
@ -47,6 +48,7 @@ import org.hibernate.sql.results.graph.DomainResultCreationState;
import org.hibernate.sql.results.graph.Fetch;
import org.hibernate.sql.results.graph.FetchParent;
import org.hibernate.sql.results.graph.Fetchable;
import org.hibernate.sql.results.graph.embeddable.internal.EmbeddableFetchImpl;
import org.hibernate.sql.results.graph.entity.EntityFetch;
import org.hibernate.sql.results.graph.entity.EntityResultGraphNode;
import org.hibernate.sql.results.graph.entity.EntityValuedFetchable;
@ -210,9 +212,13 @@ public class SingularAssociationAttributeMapping extends AbstractSingularAttribu
}
final FetchParent associationFetchParent = fetchParent.resolveContainingAssociationParent();
assert associationFetchParent.getReferencedModePart() instanceof Association;
if(associationFetchParent == null){
return null;
}
final ModelPart referencedModePart = associationFetchParent.getReferencedModePart();
assert referencedModePart instanceof Association;
final Association associationParent = (Association) associationFetchParent.getReferencedModePart();
final Association associationParent = (Association) referencedModePart;
if ( Arrays.equals( associationParent.getIdentifyingColumnExpressions(), this.getIdentifyingColumnExpressions() ) ) {
// we need to determine the NavigablePath referring to the entity that the bi-dir

4
hibernate-core/src/main/java/org/hibernate/sql/results/graph/embeddable/internal/EmbeddableFetchImpl.java
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@ -10,7 +10,6 @@ import java.util.function.Consumer;
import org.hibernate.LockMode;
import org.hibernate.engine.FetchTiming;
import org.hibernate.sql.results.graph.embeddable.EmbeddableValuedFetchable;
import org.hibernate.metamodel.mapping.EmbeddableMappingType;
import org.hibernate.metamodel.mapping.EmbeddableValuedModelPart;
import org.hibernate.query.NavigablePath;
@ -18,7 +17,6 @@ import org.hibernate.sql.ast.SqlAstJoinType;
import org.hibernate.sql.ast.tree.from.TableGroupJoin;
import org.hibernate.sql.results.graph.AbstractFetchParent;
import org.hibernate.sql.results.graph.AssemblerCreationState;
import org.hibernate.sql.results.graph.embeddable.EmbeddableResultGraphNode;
import org.hibernate.sql.results.graph.DomainResultAssembler;
import org.hibernate.sql.results.graph.DomainResultCreationState;
import org.hibernate.sql.results.graph.Fetch;
@ -26,6 +24,8 @@ import org.hibernate.sql.results.graph.FetchParent;
import org.hibernate.sql.results.graph.FetchParentAccess;
import org.hibernate.sql.results.graph.Fetchable;
import org.hibernate.sql.results.graph.Initializer;
import org.hibernate.sql.results.graph.embeddable.EmbeddableResultGraphNode;
import org.hibernate.sql.results.graph.embeddable.EmbeddableValuedFetchable;
/**
* @author Steve Ebersole

80
hibernate-core/src/test/java/org/hibernate/orm/test/loading/multiLoad/MultiLoadSubSelectCollectionTest.java
View File

@ -20,73 +20,71 @@ import javax.persistence.Table;
import org.hibernate.CacheMode;
import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.annotations.BatchSize;
import org.hibernate.annotations.Fetch;
import org.hibernate.annotations.FetchMode;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.testing.FailureExpected;
import org.hibernate.testing.TestForIssue;
import org.hibernate.testing.junit4.BaseNonConfigCoreFunctionalTestCase;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.ServiceRegistry;
import org.hibernate.testing.orm.junit.SessionFactory;
import org.hibernate.testing.orm.junit.SessionFactoryScope;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static javax.persistence.GenerationType.AUTO;
import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* @author Steve Ebersole
* @author Gail Badner
*/
public class MultiLoadSubSelectCollectionTest extends BaseNonConfigCoreFunctionalTestCase {
@Override
protected Class[] getAnnotatedClasses() {
return new Class[] { Parent.class, Child.class };
}
@DomainModel(annotatedClasses = {
MultiLoadSubSelectCollectionTest.Parent.class,
MultiLoadSubSelectCollectionTest.Child.class
})
@ServiceRegistry
@SessionFactory
public class MultiLoadSubSelectCollectionTest {
protected void addSettings(Map settings) {
settings.put( AvailableSettings.GENERATE_STATISTICS, "true" );
}
@Before
public void before() {
Session session = sessionFactory().openSession();
session.getTransaction().begin();
@BeforeEach
public void before(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.setCacheMode( CacheMode.IGNORE );
for ( int i = 1; i <= 60; i++ ) {
final Parent p = new Parent( i, "Entity #" + i );
for ( int j = 0; j < i ; j++ ) {
for ( int j = 0; j < i; j++ ) {
Child child = new Child();
child.setParent( p );
p.getChildren().add( child );
}
session.persist( p );
}
session.getTransaction().commit();
session.close();
} );
}
@After
public void after() {
Session session = sessionFactory().openSession();
session.getTransaction().begin();
@AfterEach
public void after(SessionFactoryScope scope) {
scope.inTransaction( session -> {
session.createQuery( "delete Child" ).executeUpdate();
session.createQuery( "delete Parent" ).executeUpdate();
session.getTransaction().commit();
session.close();
} );
}
@Test
@TestForIssue( jiraKey = "HHH-12740" )
public void testSubselect() {
doInHibernate(
this::sessionFactory, session -> {
List<Parent> list = session.byMultipleIds( Parent.class ).multiLoad( ids(56) );
@TestForIssue(jiraKey = "HHH-12740")
public void testSubselect(SessionFactoryScope scope) {
scope.inTransaction(
session -> {
List<Parent> list = session.byMultipleIds( Parent.class ).multiLoad( ids( 56 ) );
assertEquals( 56, list.size() );
// None of the collections should be loaded yet
@ -98,13 +96,13 @@ public class MultiLoadSubSelectCollectionTest extends BaseNonConfigCoreFunctiona
// should be loaded.
Hibernate.initialize( list.get( 0 ).children );
for ( int i = 0 ; i < 50 ; i++ ) {
for ( int i = 0; i < 50; i++ ) {
assertTrue( Hibernate.isInitialized( list.get( i ).children ) );
assertEquals( i + 1, list.get( i ).children.size() );
}
// The collections for the 51st through 56th entities should still be uninitialized
for (int i = 50 ; i < 56 ; i ++ ) {
for ( int i = 50; i < 56; i++ ) {
assertFalse( Hibernate.isInitialized( list.get( i ).children ) );
}
@ -112,7 +110,7 @@ public class MultiLoadSubSelectCollectionTest extends BaseNonConfigCoreFunctiona
// also be initialized.
Hibernate.initialize( list.get( 50 ).children );
for ( int i = 50 ; i < 56 ; i++ ) {
for ( int i = 50; i < 56; i++ ) {
assertTrue( Hibernate.isInitialized( list.get( i ).children ) );
assertEquals( i + 1, list.get( i ).children.size() );
}
@ -123,14 +121,14 @@ public class MultiLoadSubSelectCollectionTest extends BaseNonConfigCoreFunctiona
private Integer[] ids(int count) {
Integer[] ids = new Integer[count];
for ( int i = 1; i <= count; i++ ) {
ids[i-1] = i;
ids[i - 1] = i;
}
return ids;
}
@Entity( name = "Parent" )
@Table( name = "Parent" )
@BatchSize( size = 15 )
@Entity(name = "Parent")
@Table(name = "Parent")
@BatchSize(size = 15)
public static class Parent {
Integer id;
String text;
@ -172,7 +170,7 @@ public class MultiLoadSubSelectCollectionTest extends BaseNonConfigCoreFunctiona
}
}
@Entity( name = "Child" )
@Entity(name = "Child")
public static class Child {
@Id