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HHH-18493 Resolving already initialized collection elements leads to assertion error

This commit is contained in:
Christian Beikov 2024-08-15 11:34:40 +02:00
parent ab4439622b
commit 9b1eb785e5
6 changed files with 341 additions and 37 deletions
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9
hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/ArrayInitializer.java
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@ -6,6 +6,7 @@
*/
package org.hibernate.sql.results.graph.collection.internal;
import java.lang.reflect.Array;
import java.util.Iterator;
import java.util.List;
import java.util.function.BiConsumer;
@ -131,9 +132,11 @@ public class ArrayInitializer extends AbstractImmediateCollectionInitializer<Abs
final Initializer<?> initializer = elementAssembler.getInitializer();
if ( initializer != null ) {
final RowProcessingState rowProcessingState = data.getRowProcessingState();
final Iterator iter = getCollectionInstance( data ).elements();
while ( iter.hasNext() ) {
initializer.resolveInstance( iter.next(), rowProcessingState );
final Integer index = listIndexAssembler.assemble( rowProcessingState );
if ( index != null ) {
final PersistentArrayHolder<?> arrayHolder = getCollectionInstance( data );
assert arrayHolder != null;
initializer.resolveInstance( Array.get( arrayHolder.getArray(), index ), rowProcessingState );
}
}
}

14
hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/BagInitializer.java
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@ -123,19 +123,7 @@ public class BagInitializer extends AbstractImmediateCollectionInitializer<Abstr
protected void resolveInstanceSubInitializers(ImmediateCollectionInitializerData data) {
final Initializer<?> initializer = elementAssembler.getInitializer();
if ( initializer != null ) {
final RowProcessingState rowProcessingState = data.getRowProcessingState();
final PersistentCollection<?> persistentCollection = getCollectionInstance( data );
assert persistentCollection != null;
if ( persistentCollection instanceof PersistentBag<?> ) {
for ( Object element : ( (PersistentBag<?>) persistentCollection ) ) {
initializer.resolveInstance( element, rowProcessingState );
}
}
else {
for ( Object element : ( (PersistentIdentifierBag<?>) persistentCollection ) ) {
initializer.resolveInstance( element, rowProcessingState );
}
}
initializer.resolveKey( data.getRowProcessingState() );
}
}

5
hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/ListInitializer.java
View File

@ -123,10 +123,11 @@ public class ListInitializer extends AbstractImmediateCollectionInitializer<Abst
final Initializer<?> initializer = elementAssembler.getInitializer();
if ( initializer != null ) {
final RowProcessingState rowProcessingState = data.getRowProcessingState();
final Integer index = listIndexAssembler.assemble( rowProcessingState );
if ( index != null ) {
final PersistentList<?> list = getCollectionInstance( data );
assert list != null;
for ( Object element : list ) {
initializer.resolveInstance( element, rowProcessingState );
initializer.resolveInstance( list.get( index ), rowProcessingState );
}
}
}

20
hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/MapInitializer.java
View File

@ -121,17 +121,27 @@ public class MapInitializer extends AbstractImmediateCollectionInitializer<Abstr
protected void resolveInstanceSubInitializers(ImmediateCollectionInitializerData data) {
final Initializer<?> keyInitializer = mapKeyAssembler.getInitializer();
final Initializer<?> valueInitializer = mapValueAssembler.getInitializer();
if ( keyInitializer != null || valueInitializer != null ) {
final RowProcessingState rowProcessingState = data.getRowProcessingState();
if ( keyInitializer == null && valueInitializer != null ) {
// For now, we only support resolving the value initializer instance when keys have no initializer,
// though we could also support map keys with an initializer given that the initialized java type:
// * is an entity that uses only the primary key in equals/hashCode.
// If the primary key type is an embeddable, the next condition must hold for that
// * or is an embeddable that has no initializers for fields being used in the equals/hashCode
// which violate this same requirement (recursion)
final Object key = mapKeyAssembler.assemble( rowProcessingState );
if ( key != null ) {
final PersistentMap<?, ?> map = getCollectionInstance( data );
assert map != null;
for ( Map.Entry<?, ?> entry : map.entrySet() ) {
valueInitializer.resolveInstance( map.get( key ), rowProcessingState );
}
}
else {
if ( keyInitializer != null ) {
keyInitializer.resolveInstance( entry.getKey(), rowProcessingState );
keyInitializer.resolveKey( rowProcessingState );
}
if ( valueInitializer != null ) {
valueInitializer.resolveInstance( entry.getValue(), rowProcessingState );
}
valueInitializer.resolveKey( rowProcessingState );
}
}
}

7
hibernate-core/src/main/java/org/hibernate/sql/results/graph/collection/internal/SetInitializer.java
View File

@ -97,12 +97,7 @@ public class SetInitializer extends AbstractImmediateCollectionInitializer<Abstr
protected void resolveInstanceSubInitializers(ImmediateCollectionInitializerData data) {
final Initializer<?> initializer = elementAssembler.getInitializer();
if ( initializer != null ) {
final RowProcessingState rowProcessingState = data.getRowProcessingState();
final PersistentSet<?> set = getCollectionInstance( data );
assert set != null;
for ( Object element : set ) {
initializer.resolveInstance( element, rowProcessingState );
}
initializer.resolveKey( data.getRowProcessingState() );
}
}

307
hibernate-core/src/test/java/org/hibernate/orm/test/inheritance/join/ReloadMultipleCollectionElementsTest.java Normal file
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@ -0,0 +1,307 @@
/*
* 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.inheritance.join;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.hibernate.Hibernate;
import org.hibernate.testing.orm.junit.DomainModel;
import org.hibernate.testing.orm.junit.Jira;
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 jakarta.persistence.CascadeType;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.FetchType;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;
import jakarta.persistence.Id;
import jakarta.persistence.JoinColumn;
import jakarta.persistence.ManyToMany;
import jakarta.persistence.ManyToOne;
import jakarta.persistence.OneToMany;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
@DomainModel( annotatedClasses = {
ReloadMultipleCollectionElementsTest.Flight.class,
ReloadMultipleCollectionElementsTest.Ticket.class,
ReloadMultipleCollectionElementsTest.Customer.class,
ReloadMultipleCollectionElementsTest.Company.class
} )
@SessionFactory
@Jira("https://hibernate.atlassian.net/browse/HHH-18493")
public class ReloadMultipleCollectionElementsTest {
@BeforeEach
public void setup(SessionFactoryScope scope) {
scope.inTransaction( s -> {
Flight f2 = new Flight();
f2.setId(1L);
f2.setName("Flight two");
Company us = new Company();
us.setName("Airline 2");
f2.setCompany(us);
Customer c1 = new Customer();
c1.setId( 1L );
c1.setName("Tom");
Customer c2 = new Customer();
c2.setId( 2L );
c2.setName("Pete");
Ticket t1 = new Ticket();
t1.setId(1L);
t1.setCustomer(c2);
t1.setNumber( "123" );
Ticket t2 = new Ticket();
t2.setId(2L);
t2.setCustomer(c2);
t2.setNumber( "456" );
f2.setCustomers(Set.of(c1, c2));
s.persist(c1);
s.persist(c2);
s.persist(f2);
s.persist(t1);
s.persist(t2);
} );
}
@AfterEach
public void cleanup(SessionFactoryScope scope) {
scope.inTransaction( s -> {
s.createMutationQuery( "delete from Ticket" ).executeUpdate();
s.createMutationQuery( "delete from Flight" ).executeUpdate();
s.createMutationQuery( "delete from Customer" ).executeUpdate();
s.createMutationQuery( "delete from Company" ).executeUpdate();
} );
}
@Test
public void testResolveElementOfInitializedCollection(SessionFactoryScope scope) {
scope.inTransaction( s -> {
// First load all customers with their flights collection and corresponding customers
List<Customer> customers = s.createQuery(
"from Customer c join fetch c.flights f join fetch f.customers order by c.id",
Customer.class
).getResultList();
assertEquals( 2, customers.size() );
assertFalse( Hibernate.isInitialized( customers.get( 0 ).getTickets() ) );
assertFalse( Hibernate.isInitialized( customers.get( 1 ).getTickets() ) );
// Then load all flights with their customers collection, but in addition, also the customers tickets
// This will trigger resolveInstance(Object, Data) with the existing collection and will
// fetch tickets data into existing customers
s.createQuery( "from Flight f join fetch f.customers c left join fetch c.tickets", Flight.class ).getResultList();
assertTrue( Hibernate.isInitialized( customers.get( 0 ).getTickets() ) );
assertTrue( Hibernate.isInitialized( customers.get( 1 ).getTickets() ) );
assertEquals( 0, customers.get( 0 ).getTickets().size() );
assertEquals( 2, customers.get( 1 ).getTickets().size() );
} );
}
@Entity( name = "Flight" )
public static class Flight {
private Long id;
private String name;
private Company company;
private Set<Customer> customers;
public Flight() {
}
@Id
@Column(name = "flight_id")
public Long getId() {
return id;
}
public void setId(Long long1) {
id = long1;
}
@Column(updatable = false, name = "flight_name", nullable = false, length = 50)
public String getName() {
return name;
}
public void setName(String string) {
name = string;
}
@ManyToOne(cascade = {CascadeType.ALL})
@JoinColumn(name = "comp_id")
public Company getCompany() {
return company;
}
public void setCompany(Company company) {
this.company = company;
}
@ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, fetch = FetchType.EAGER)
public Set<Customer> getCustomers() {
return customers;
}
public void setCustomers(Set<Customer> customers) {
this.customers = customers;
}
}
@Entity( name = "Ticket" )
public static class Ticket {
Long id;
String number;
Customer customer;
public Ticket() {
}
@Id
public Long getId() {
return id;
}
public void setId(Long long1) {
id = long1;
}
@Column(name = "nr")
public String getNumber() {
return number;
}
public void setNumber(String string) {
number = string;
}
@ManyToOne(cascade = CascadeType.ALL)
@JoinColumn(name = "CUSTOMER_ID")
public Customer getCustomer() {
return customer;
}
public void setCustomer(Customer customer) {
this.customer = customer;
}
}
@Entity( name = "Customer" )
public static class Customer {
private Long id;
private String name;
private String address;
private Set<Ticket> tickets;
private Set<Flight> flights;
// Address address;
public Customer() {
}
@Id
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@OneToMany(cascade = CascadeType.ALL, mappedBy = "customer")
public Set<Ticket> getTickets() {
return tickets;
}
public void setTickets(Set<Ticket> tickets) {
this.tickets = tickets;
}
@ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE}, mappedBy = "customers")
public Set<Flight> getFlights() {
return flights;
}
public void setFlights(Set<Flight> flights) {
this.flights = flights;
}
}
@Entity( name = "Company" )
public static class Company {
private Long id;
private String name;
private Set<Flight> flights = new HashSet<Flight>();
public Company() {
}
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "comp_id")
public Long getId() {
return id;
}
public String getName() {
return name;
}
public void setId(Long newId) {
id = newId;
}
public void setName(String string) {
name = string;
}
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "company")
@Column(name = "flight_id")
public Set<Flight> getFlights() {
return flights;
}
public void setFlights(Set<Flight> flights) {
this.flights = flights;
}
}
}