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Add support for from-space wide explicit join ordering and thus support entity/cross joins on all JpaFrom elements

This commit is contained in:
Christian Beikov 2021-10-23 18:16:17 +02:00
parent 1456a2dd7f
commit 6745f71f88
27 changed files with 255 additions and 209 deletions
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2
hibernate-core/src/main/java/org/hibernate/loader/ast/internal/LoaderSelectBuilder.java
View File

@ -421,9 +421,9 @@ public class LoaderSelectBuilder {
null,
SqlAstJoinType.LEFT,
true,
false,
sqlAstCreationState
);
rootTableGroup.addTableGroupJoin( tableGroupJoin );
tableGroup = tableGroupJoin.getJoinedGroup();
sqlAstCreationState.getFromClauseAccess().registerTableGroup( navigablePath, tableGroup );
}

11
hibernate-core/src/main/java/org/hibernate/metamodel/internal/AbstractCompositeIdentifierMapping.java
View File

@ -171,7 +171,6 @@ public abstract class AbstractCompositeIdentifierMapping
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -187,15 +186,7 @@ public abstract class AbstractCompositeIdentifierMapping
creationContext
);
final TableGroupJoin join = new TableGroupJoin( navigablePath, SqlAstJoinType.LEFT, tableGroup, null );
if ( nested ) {
lhs.addNestedTableGroupJoin( join );
}
else {
lhs.addTableGroupJoin( join );
}
return join;
return new TableGroupJoin( navigablePath, SqlAstJoinType.LEFT, tableGroup, null );
}
@Override

15
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EmbeddedAttributeMapping.java
View File

@ -284,7 +284,6 @@ public class EmbeddedAttributeMapping
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -300,19 +299,7 @@ public class EmbeddedAttributeMapping
creationContext
);
final TableGroupJoin join = new TableGroupJoin(
navigablePath,
sqlAstJoinType,
tableGroup
);
if ( nested ) {
lhs.addNestedTableGroupJoin( join );
}
else {
lhs.addTableGroupJoin( join );
}
return join;
return new TableGroupJoin( navigablePath, sqlAstJoinType, tableGroup );
}
@Override

15
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EmbeddedCollectionPart.java
View File

@ -202,7 +202,6 @@ public class EmbeddedCollectionPart implements CollectionPart, EmbeddableValuedF
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -218,19 +217,7 @@ public class EmbeddedCollectionPart implements CollectionPart, EmbeddableValuedF
creationContext
);
final TableGroupJoin join = new TableGroupJoin(
navigablePath,
sqlAstJoinType,
tableGroup,
null
);
if ( nested ) {
lhs.addNestedTableGroupJoin( join );
}
else {
lhs.addTableGroupJoin( join );
}
return join;
return new TableGroupJoin( navigablePath, sqlAstJoinType, tableGroup, null );
}
@Override

2
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EmbeddedForeignKeyDescriptor.java
View File

@ -305,9 +305,9 @@ public class EmbeddedForeignKeyDescriptor implements ForeignKeyDescriptor {
null,
SqlAstJoinType.INNER,
true,
false,
creationState.getSqlAstCreationState()
);
tableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);

2
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/EntityCollectionPart.java
View File

@ -273,7 +273,6 @@ public class EntityCollectionPart
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -283,7 +282,6 @@ public class EntityCollectionPart
explicitSourceAlias,
sqlAstJoinType,
fetched,
nested,
aliasBaseGenerator,
sqlExpressionResolver,
creationContext

14
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/PluralAttributeMappingImpl.java
View File

@ -572,9 +572,9 @@ public class PluralAttributeMappingImpl
null,
SqlAstJoinType.LEFT,
true,
false,
creationState.getSqlAstCreationState()
);
lhsTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);
@ -625,7 +625,6 @@ public class PluralAttributeMappingImpl
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -640,7 +639,7 @@ public class PluralAttributeMappingImpl
sqlExpressionResolver,
creationContext
);
final TableGroupJoin join = new TableGroupJoin(
return new TableGroupJoin(
navigablePath,
sqlAstJoinType,
tableGroup,
@ -652,15 +651,6 @@ public class PluralAttributeMappingImpl
creationContext
)
);
if ( nested ) {
lhs.addNestedTableGroupJoin( join );
}
else {
lhs.addTableGroupJoin( join );
}
return join;
}
@Override

58
hibernate-core/src/main/java/org/hibernate/metamodel/mapping/internal/ToOneAttributeMapping.java
View File

@ -716,27 +716,33 @@ public class ToOneAttributeMapping
final TableGroup tableGroup;
if ( fetchParent instanceof EntityResultJoinedSubclassImpl &&
( (EntityPersister) fetchParent.getReferencedModePart() ).findDeclaredAttributeMapping( getPartName() ) == null ) {
tableGroup = createTableGroupJoin(
final TableGroupJoin tableGroupJoin = createTableGroupJoin(
fetchablePath,
true,
getJoinType( fetchablePath, parentTableGroup ),
parentTableGroup,
resultVariable,
creationState,
parentTableGroup
getJoinType( fetchablePath, parentTableGroup ),
true,
creationState.getSqlAstCreationState()
);
parentTableGroup.addTableGroupJoin( tableGroupJoin );
tableGroup = tableGroupJoin.getJoinedGroup();
fromClauseAccess.registerTableGroup( fetchablePath, tableGroup );
}
else {
tableGroup = fromClauseAccess.resolveTableGroup(
fetchablePath,
np ->
createTableGroupJoin(
fetchablePath,
true,
resultVariable,
creationState,
parentTableGroup
)
np -> {
final TableGroupJoin tableGroupJoin = createTableGroupJoin(
fetchablePath,
parentTableGroup,
resultVariable,
getDefaultSqlAstJoinType( parentTableGroup ),
true,
creationState.getSqlAstCreationState()
);
parentTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);
}
@ -839,9 +845,9 @@ public class ToOneAttributeMapping
null,
getDefaultSqlAstJoinType( tableGroup ),
true,
false,
creationState.getSqlAstCreationState()
);
tableGroup.addTableGroupJoin( tableGroupJoin );
creationState.getSqlAstCreationState().getFromClauseAccess().registerTableGroup(
navigablePath,
@ -867,22 +873,6 @@ public class ToOneAttributeMapping
}
}
private TableGroup createTableGroupJoin(
NavigablePath fetchablePath,
boolean fetched,
String sourceAlias,
DomainResultCreationState creationState,
TableGroup parentTableGroup) {
return createTableGroupJoin(
fetchablePath,
fetched,
getDefaultSqlAstJoinType( parentTableGroup ),
sourceAlias,
creationState,
parentTableGroup
);
}
@Override
public SqlAstJoinType getDefaultSqlAstJoinType(TableGroup parentTableGroup) {
if ( isNullable ) {
@ -912,7 +902,6 @@ public class ToOneAttributeMapping
sourceAlias,
sqlAstJoinType,
fetched,
false,
creationState.getSqlAstCreationState()
);
@ -931,7 +920,6 @@ public class ToOneAttributeMapping
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext) {
@ -967,12 +955,6 @@ public class ToOneAttributeMapping
)
)
);
if ( nested ) {
lhs.addNestedTableGroupJoin( join );
}
else {
lhs.addTableGroupJoin( join );
}
if ( sqlAstJoinType == SqlAstJoinType.INNER && isNullable ) {
// Force initialization of the underlying table group join to retain cardinality

11
hibernate-core/src/main/java/org/hibernate/query/criteria/JpaFrom.java
View File

@ -6,6 +6,9 @@
*/
package org.hibernate.query.criteria;
import org.hibernate.metamodel.model.domain.EntityDomainType;
import org.hibernate.query.sqm.tree.SqmJoinType;
import jakarta.persistence.criteria.From;
/**
@ -16,4 +19,12 @@ import jakarta.persistence.criteria.From;
public interface JpaFrom<O,T> extends JpaPath<T>, JpaFetchParent<O,T>, From<O,T> {
@Override
JpaFrom<O,T> getCorrelationParent();
<X> JpaEntityJoin<X> join(Class<X> entityJavaType);
<X> JpaEntityJoin<X> join(EntityDomainType<X> entity);
<X> JpaEntityJoin<X> join(Class<X> entityJavaType, SqmJoinType joinType);
<X> JpaEntityJoin<X> join(EntityDomainType<X> entity, SqmJoinType joinType);
}

9
hibernate-core/src/main/java/org/hibernate/query/criteria/JpaRoot.java
View File

@ -9,7 +9,6 @@ package org.hibernate.query.criteria;
import jakarta.persistence.criteria.Root;
import org.hibernate.metamodel.model.domain.EntityDomainType;
import org.hibernate.query.sqm.tree.SqmJoinType;
/**
* @author Steve Ebersole
@ -19,12 +18,4 @@ public interface JpaRoot<T> extends JpaFrom<T,T>, Root<T> {
EntityDomainType<T> getModel();
EntityDomainType<T> getManagedType();
<X> JpaEntityJoin<X> join(Class<X> entityJavaType);
<X> JpaEntityJoin<X> join(EntityDomainType<X> entity);
<X> JpaEntityJoin<X> join(Class<X> entityJavaType, SqmJoinType joinType);
<X> JpaEntityJoin<X> join(EntityDomainType<X> entity, SqmJoinType joinType);
}

14
hibernate-core/src/main/java/org/hibernate/query/hql/internal/SemanticQueryBuilder.java
View File

@ -1628,7 +1628,7 @@ public class SemanticQueryBuilder<R> extends HqlParserBaseVisitor<Object> implem
}
@SuppressWarnings("WeakerAccess")
protected void consumeQualifiedJoin(HqlParser.QualifiedJoinContext parserJoin, SqmRoot<?> sqmRoot) {
protected <X> void consumeQualifiedJoin(HqlParser.QualifiedJoinContext parserJoin, SqmRoot<X> sqmRoot) {
final SqmJoinType joinType;
final int firstJoinTypeSymbolType;
if ( parserJoin.getChild( 0 ) instanceof HqlParser.JoinTypeQualifierContext
@ -1676,22 +1676,22 @@ public class SemanticQueryBuilder<R> extends HqlParserBaseVisitor<Object> implem
);
try {
//noinspection rawtypes
final SqmQualifiedJoin join = (SqmQualifiedJoin) qualifiedJoinRhsContext.getChild( 0 ).accept( this );
//noinspection unchecked
final SqmQualifiedJoin<X, ?> join = (SqmQualifiedJoin<X, ?>) qualifiedJoinRhsContext.getChild( 0 ).accept( this );
// we need to set the alias here because the path could be treated - the treat operator is
// not consumed by the identifierConsumer
join.setExplicitAlias( alias );
final HqlParser.QualifiedJoinPredicateContext qualifiedJoinPredicateContext = parserJoin.qualifiedJoinPredicate();
if ( join instanceof SqmEntityJoin ) {
//noinspection unchecked
if ( join instanceof SqmEntityJoin<?> ) {
sqmRoot.addSqmJoin( join );
}
else {
final SqmAttributeJoin<?, ?> attributeJoin = (SqmAttributeJoin<?, ?>) join;
if ( getCreationOptions().useStrictJpaCompliance() ) {
if ( join.getExplicitAlias() != null ) {
if ( ( (SqmAttributeJoin<?, ?>) join ).isFetched() ) {
if ( attributeJoin.isFetched() ) {
throw new StrictJpaComplianceViolation(
"Encountered aliased fetch join, but strict JPQL compliance was requested",
StrictJpaComplianceViolation.Type.ALIASED_FETCH_JOIN
@ -1699,7 +1699,7 @@ public class SemanticQueryBuilder<R> extends HqlParserBaseVisitor<Object> implem
}
}
}
if ( qualifiedJoinPredicateContext != null && ( (SqmAttributeJoin<?, ?>) join ).isFetched() ) {
if ( qualifiedJoinPredicateContext != null && attributeJoin.isFetched() ) {
throw new SemanticException( "with-clause not allowed on fetched associations; use filters" );
}
}

5
hibernate-core/src/main/java/org/hibernate/query/results/TableGroupImpl.java
View File

@ -91,9 +91,8 @@ public class TableGroupImpl implements TableGroup {
if ( tableGroupJoins == null ) {
tableGroupJoins = new ArrayList<>();
}
if ( !tableGroupJoins.contains( join ) ) {
tableGroupJoins.add( join );
}
assert !tableGroupJoins.contains( join );
tableGroupJoins.add( join );
}
@Override

2
hibernate-core/src/main/java/org/hibernate/query/results/dynamic/DynamicFetchBuilderLegacy.java
View File

@ -118,11 +118,11 @@ public class DynamicFetchBuilderLegacy implements DynamicFetchBuilder, NativeQue
tableAlias,
SqlAstJoinType.INNER,
true,
false,
s -> sqlAliasBase,
creationState.getSqlExpressionResolver(),
creationState.getCreationContext()
);
ownerTableGroup.addTableGroupJoin( tableGroupJoin );
creationState.getFromClauseAccess().registerTableGroup( fetchPath, tableGroup = tableGroupJoin.getJoinedGroup() );
}
else {

2
hibernate-core/src/main/java/org/hibernate/query/results/implicit/ImplicitFetchBuilderEmbeddable.java
View File

@ -89,9 +89,9 @@ public class ImplicitFetchBuilderEmbeddable implements ImplicitFetchBuilder {
null,
SqlAstJoinType.INNER,
true,
false,
creationStateImpl
);
parentTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);

1
hibernate-core/src/main/java/org/hibernate/query/results/implicit/ImplicitModelPartResultBuilderEmbeddable.java
View File

@ -70,7 +70,6 @@ public class ImplicitModelPartResultBuilderEmbeddable
null,
SqlAstJoinType.INNER,
true,
false,
creationStateImpl
);

157
hibernate-core/src/main/java/org/hibernate/query/sqm/sql/BaseSqmToSqlAstConverter.java
View File

@ -82,6 +82,9 @@ import org.hibernate.metamodel.model.domain.internal.CompositeSqmPathSource;
import org.hibernate.query.criteria.JpaPath;
import org.hibernate.query.sqm.function.SelfRenderingFunctionSqlAstExpression;
import org.hibernate.query.sqm.produce.function.internal.PatternRenderer;
import org.hibernate.query.sqm.tree.SqmJoinType;
import org.hibernate.query.sqm.tree.domain.SqmCorrelatedRootJoin;
import org.hibernate.query.sqm.tree.domain.SqmCorrelation;
import org.hibernate.sql.exec.internal.VersionTypeSeedParameterSpecification;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.entity.EntityPersister;
@ -1926,12 +1929,24 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
final TableGroup tableGroup;
if ( sqmRoot.isCorrelated() ) {
final SessionFactoryImplementor sessionFactory = creationContext.getSessionFactory();
final TableGroup parentTableGroup = fromClauseIndex.findTableGroup(
sqmRoot.getCorrelationParent().getNavigablePath()
);
final EntityPersister entityDescriptor = resolveEntityPersister( sqmRoot.getReferencedPathSource() );
if ( sqmRoot.containsOnlyInnerJoins() ) {
// If we have just inner joins against a correlated root, we can render the joins as references
final SqmFrom<?, ?> from;
// If we correlate a join, we have to create a special SqmRoot shell called SqmCorrelatedRootJoin.
// The only purpose of that is to serve as SqmRoot, which is needed for the FROM clause.
// It will always contain just a single correlated join though, which is what is actually correlated
if ( sqmRoot instanceof SqmCorrelatedRootJoin<?> ) {
assert sqmRoot.getSqmJoins().size() == 1;
assert sqmRoot.getSqmJoins().get( 0 ).isCorrelated();
from = sqmRoot.getSqmJoins().get( 0 );
}
else {
from = sqmRoot;
}
final TableGroup parentTableGroup = fromClauseIndex.findTableGroup(
from.getCorrelationParent().getNavigablePath()
);
final SqlAliasBase sqlAliasBase = sqlAliasBaseManager.createSqlAliasBase( parentTableGroup.getGroupAlias() );
tableGroup = new CorrelatedTableGroup(
parentTableGroup,
@ -1945,11 +1960,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
);
log.tracef( "Resolved SqmRoot [%s] to correlated TableGroup [%s]", sqmRoot, tableGroup );
consumeExplicitJoins( sqmRoot, tableGroup );
consumeExplicitJoins( from, tableGroup );
return;
}
else {
final TableGroup parentTableGroup = fromClauseIndex.findTableGroup(
sqmRoot.getCorrelationParent().getNavigablePath()
);
// If we have non-inner joins against a correlated root, we must render the root with a correlation predicate
tableGroup = entityDescriptor.createRootTableGroup(
true,
@ -2042,7 +2059,33 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
fromClauseIndex.register( sqmRoot, tableGroup );
currentQuerySpec.getFromClause().addRoot( tableGroup );
consumeExplicitJoins( sqmRoot, tableGroup );
if ( sqmRoot.getOrderedJoins() == null ) {
consumeExplicitJoins( sqmRoot, tableGroup );
}
else {
if ( log.isTraceEnabled() ) {
log.tracef( "Visiting explicit joins for `%s`", sqmRoot.getNavigablePath() );
}
TableGroup lastTableGroup = tableGroup;
for ( SqmJoin<?, ?> join : sqmRoot.getOrderedJoins() ) {
final TableGroup ownerTableGroup;
if ( join.getLhs() == null ) {
ownerTableGroup = tableGroup;
}
else {
if ( join.getLhs() instanceof SqmCorrelation<?, ?> ) {
ownerTableGroup = fromClauseIndex.findTableGroup(
( (SqmCorrelation<?, ?>) join.getLhs() ).getCorrelatedRoot().getNavigablePath()
);
}
else {
ownerTableGroup = fromClauseIndex.findTableGroup( join.getLhs().getNavigablePath() );
}
}
assert ownerTableGroup != null;
lastTableGroup = consumeExplicitJoin( join, lastTableGroup, ownerTableGroup, false );
}
}
}
private EntityPersister resolveEntityPersister(EntityDomainType<?> entityDomainType) {
@ -2054,29 +2097,38 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
log.tracef( "Visiting explicit joins for `%s`", sqmFrom.getNavigablePath() );
}
sqmFrom.visitSqmJoins(
sqmJoin -> consumeExplicitJoin( sqmJoin, lhsTableGroup )
sqmJoin -> consumeExplicitJoin( sqmJoin, lhsTableGroup, lhsTableGroup, true )
);
}
@SuppressWarnings("WeakerAccess")
protected void consumeExplicitJoin(SqmJoin<?, ?> sqmJoin, TableGroup lhsTableGroup) {
protected TableGroup consumeExplicitJoin(
SqmJoin<?, ?> sqmJoin,
TableGroup lhsTableGroup,
TableGroup ownerTableGroup,
boolean transitive) {
if ( sqmJoin instanceof SqmAttributeJoin<?, ?> ) {
consumeAttributeJoin( ( (SqmAttributeJoin<?, ?>) sqmJoin ), lhsTableGroup );
return consumeAttributeJoin( ( (SqmAttributeJoin<?, ?>) sqmJoin ), lhsTableGroup, ownerTableGroup, transitive );
}
else if ( sqmJoin instanceof SqmCrossJoin<?> ) {
consumeCrossJoin( ( (SqmCrossJoin<?>) sqmJoin ), lhsTableGroup );
return consumeCrossJoin( ( (SqmCrossJoin<?>) sqmJoin ), lhsTableGroup, transitive );
}
else if ( sqmJoin instanceof SqmEntityJoin<?> ) {
consumeEntityJoin( ( (SqmEntityJoin<?>) sqmJoin ), lhsTableGroup );
return consumeEntityJoin( ( (SqmEntityJoin<?>) sqmJoin ), lhsTableGroup, transitive );
}
else {
throw new InterpretationException( "Could not resolve SqmJoin [" + sqmJoin.getNavigablePath() + "] to TableGroupJoin" );
}
}
private void consumeAttributeJoin(SqmAttributeJoin<?, ?> sqmJoin, TableGroup lhsTableGroup) {
private TableGroup consumeAttributeJoin(
SqmAttributeJoin<?, ?> sqmJoin,
TableGroup lhsTableGroup,
TableGroup ownerTableGroup,
boolean transitive) {
final SqmPathSource<?> pathSource = sqmJoin.getReferencedPathSource();
final SqmJoinType sqmJoinType = sqmJoin.getSqmJoinType();
final TableGroupJoin joinedTableGroupJoin;
final TableGroup joinedTableGroup;
@ -2084,7 +2136,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
final NavigablePath sqmJoinNavigablePath = sqmJoin.getNavigablePath();
final NavigablePath parentNavigablePath = sqmJoinNavigablePath.getParent();
final ModelPart modelPart = lhsTableGroup.getModelPart().findSubPart(
final ModelPart modelPart = ownerTableGroup.getModelPart().findSubPart(
pathSource.getPathName(),
SqmMappingModelHelper.resolveExplicitTreatTarget( sqmJoin, this )
);
@ -2108,11 +2160,10 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
joinedTableGroupJoin = pluralAttributeMapping.createTableGroupJoin(
joinPath,
lhsTableGroup,
ownerTableGroup,
sqmJoin.getExplicitAlias(),
sqmJoin.getSqmJoinType().getCorrespondingSqlJoinType(),
sqmJoinType.getCorrespondingSqlJoinType(),
sqmJoin.isFetched(),
false,
this
);
}
@ -2123,13 +2174,19 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
joinedTableGroupJoin = ( (TableGroupJoinProducer) modelPart ).createTableGroupJoin(
joinPath,
lhsTableGroup,
ownerTableGroup,
sqmJoin.getExplicitAlias(),
sqmJoin.getSqmJoinType().getCorrespondingSqlJoinType(),
sqmJoinType.getCorrespondingSqlJoinType(),
sqmJoin.isFetched(),
false,
this
);
// Since this is an explicit join, we force the initialization of a possible lazy table group
// to retain the cardinality, but only if this is a non-trivial attribute join.
// Left or inner singular attribute joins without a predicate can be safely optimized away
if ( sqmJoin.getJoinPredicate() != null || sqmJoinType != SqmJoinType.INNER && sqmJoinType != SqmJoinType.LEFT ) {
joinedTableGroupJoin.getJoinedGroup().getPrimaryTableReference();
}
}
joinedTableGroup = joinedTableGroupJoin.getJoinedGroup();
@ -2153,7 +2210,10 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
currentlyProcessingJoin = oldJoin;
}
consumeExplicitJoins( sqmJoin, joinedTableGroup );
if ( transitive ) {
consumeExplicitJoins( sqmJoin, joinedTableGroup );
}
return joinedTableGroup;
}
private NavigablePath getJoinNavigablePath(
@ -2173,7 +2233,7 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
}
}
private void consumeCrossJoin(SqmCrossJoin sqmJoin, TableGroup lhsTableGroup) {
private TableGroup consumeCrossJoin(SqmCrossJoin<?> sqmJoin, TableGroup lhsTableGroup, boolean transitive) {
final EntityPersister entityDescriptor = resolveEntityPersister( sqmJoin.getReferencedPathSource() );
final TableGroup tableGroup = entityDescriptor.createRootTableGroup(
@ -2198,10 +2258,13 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
getFromClauseIndex().register( sqmJoin, tableGroup );
consumeExplicitJoins( sqmJoin, tableGroupJoin.getJoinedGroup() );
if ( transitive ) {
consumeExplicitJoins( sqmJoin, tableGroupJoin.getJoinedGroup() );
}
return tableGroup;
}
private void consumeEntityJoin(SqmEntityJoin sqmJoin, TableGroup lhsTableGroup) {
private TableGroup consumeEntityJoin(SqmEntityJoin<?> sqmJoin, TableGroup lhsTableGroup, boolean transitive) {
final EntityPersister entityDescriptor = resolveEntityPersister( sqmJoin.getReferencedPathSource() );
final SqlAstJoinType correspondingSqlJoinType = sqmJoin.getSqmJoinType().getCorrespondingSqlJoinType();
@ -2236,8 +2299,10 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
// Note that we add the entity join after processing the predicate because implicit joins needed in there
// can be just ordered right before the entity join without changing the semantics
lhsTableGroup.addTableGroupJoin( tableGroupJoin );
consumeExplicitJoins( sqmJoin, tableGroupJoin.getJoinedGroup() );
if ( transitive ) {
consumeExplicitJoins( sqmJoin, tableGroupJoin.getJoinedGroup() );
}
return tableGroup;
}
private <X> X prepareReusablePath(SqmPath<?> sqmPath, Supplier<X> supplier) {
@ -2354,13 +2419,20 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
null,
defaultSqlAstJoinType,
false,
// Implicit joins in the ON clause need to be added as nested table group joins
currentClauseStack.getCurrent() == Clause.FROM
// Except for entity joins, as we can order the implicit joins before the entity join
// See consumeEntityJoin for details
&& !( currentlyProcessingJoin instanceof SqmEntityJoin<?> ),
this
);
// Implicit joins in the ON clause of attribute joins need to be added as nested table group joins
// We don't have to do that for entity joins etc. as these do not have an inherent dependency on the lhs.
// We can just add the implicit join before the currently processing join
// See consumeEntityJoin for details
final boolean nested = currentClauseStack.getCurrent() == Clause.FROM
&& currentlyProcessingJoin instanceof SqmAttributeJoin<?, ?>;
if ( nested ) {
parentTableGroup.addNestedTableGroupJoin( tableGroupJoin );
}
else {
parentTableGroup.addTableGroupJoin( tableGroupJoin );
}
tableGroup = tableGroupJoin.getJoinedGroup();
}
@ -2822,12 +2894,12 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
null,
SqlAstJoinType.INNER,
false,
false,
sqlAliasBaseManager,
getSqlExpressionResolver(),
creationContext
);
parentTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);
@ -4657,16 +4729,17 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
).getExpressionType();
// The creation of the table group join against the correlated table group
// has the side effect that the from and where clause of the sub-query are set
pluralAttributeMapping.createTableGroupJoin(
pluralPathNavPath,
tableGroup,
sqmPluralPath.getExplicitAlias(),
SqlAstJoinType.INNER,
false,
false,
sqlAliasBaseManager,
subQueryState,
creationContext
tableGroup.addTableGroupJoin(
pluralAttributeMapping.createTableGroupJoin(
pluralPathNavPath,
tableGroup,
sqmPluralPath.getExplicitAlias(),
SqlAstJoinType.INNER,
false,
sqlAliasBaseManager,
subQueryState,
creationContext
)
);
final ForeignKeyDescriptor collectionKeyDescriptor = pluralAttributeMapping.getKeyDescriptor();
@ -5072,9 +5145,9 @@ public abstract class BaseSqmToSqlAstConverter<T extends Statement> extends Base
alias,
tableGroupJoinProducer.getDefaultSqlAstJoinType( lhs ),
true,
false,
this
);
lhs.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);

3
hibernate-core/src/main/java/org/hibernate/query/sqm/sql/internal/EntityValuedPathInterpretation.java
View File

@ -311,10 +311,9 @@ public class EntityValuedPathInterpretation<T> extends AbstractSqmPathInterpreta
null,
SqlAstJoinType.INNER,
false,
false,
sqlAstCreationState
);
parentTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);

28
hibernate-core/src/main/java/org/hibernate/query/sqm/tree/domain/AbstractSqmFrom.java
View File

@ -32,6 +32,7 @@ import org.hibernate.metamodel.model.domain.PluralPersistentAttribute;
import org.hibernate.metamodel.model.domain.SetPersistentAttribute;
import org.hibernate.metamodel.model.domain.SingularPersistentAttribute;
import org.hibernate.query.NavigablePath;
import org.hibernate.query.criteria.JpaEntityJoin;
import org.hibernate.query.criteria.JpaPath;
import org.hibernate.query.criteria.JpaSelection;
import org.hibernate.query.sqm.NodeBuilder;
@ -43,6 +44,7 @@ import org.hibernate.query.hql.spi.SqmCreationState;
import org.hibernate.query.sqm.spi.SqmCreationHelper;
import org.hibernate.query.sqm.tree.SqmJoinType;
import org.hibernate.query.sqm.tree.from.SqmAttributeJoin;
import org.hibernate.query.sqm.tree.from.SqmEntityJoin;
import org.hibernate.query.sqm.tree.from.SqmFrom;
import org.hibernate.query.sqm.tree.from.SqmJoin;
import org.hibernate.query.sqm.tree.from.SqmRoot;
@ -142,7 +144,7 @@ public abstract class AbstractSqmFrom<O,T> extends AbstractSqmPath<T> implements
@Override
public boolean hasJoins() {
return ! (joins == null || joins.isEmpty() );
return !( joins == null || joins.isEmpty() );
}
@Override
@ -156,6 +158,7 @@ public abstract class AbstractSqmFrom<O,T> extends AbstractSqmPath<T> implements
joins = new ArrayList<>();
}
joins.add( join );
findRoot().addOrderedJoin( join );
}
@Override
@ -408,6 +411,29 @@ public abstract class AbstractSqmFrom<O,T> extends AbstractSqmPath<T> implements
);
}
@Override
public <X> JpaEntityJoin<X> join(Class<X> entityJavaType) {
return join( nodeBuilder().getDomainModel().entity( entityJavaType ) );
}
@Override
public <X> JpaEntityJoin<X> join(EntityDomainType<X> entity) {
return join( entity, SqmJoinType.INNER );
}
@Override
public <X> JpaEntityJoin<X> join(Class<X> entityJavaType, SqmJoinType joinType) {
return join( nodeBuilder().getDomainModel().entity( entityJavaType ), joinType );
}
@Override
public <X> JpaEntityJoin<X> join(EntityDomainType<X> entity, SqmJoinType joinType) {
final SqmEntityJoin<X> join = new SqmEntityJoin<>( entity, null, joinType, findRoot() );
//noinspection unchecked
addSqmJoin( (SqmJoin<T, ?>) join );
return join;
}
@Override
public Set<Fetch<T, ?>> getFetches() {
//noinspection unchecked

49
hibernate-core/src/main/java/org/hibernate/query/sqm/tree/from/SqmRoot.java
View File

@ -6,6 +6,9 @@
*/
package org.hibernate.query.sqm.tree.from;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.metamodel.model.domain.EntityDomainType;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.query.NavigablePath;
@ -31,6 +34,7 @@ import org.hibernate.sql.results.graph.DomainResultCreationState;
public class SqmRoot<E> extends AbstractSqmFrom<E,E> implements JpaRoot<E>, DomainResultProducer<E> {
private final boolean allowJoins;
private List<SqmJoin<?, ?>> orderedJoins;
public SqmRoot(
EntityDomainType<E> entityType,
@ -68,6 +72,28 @@ public class SqmRoot<E> extends AbstractSqmFrom<E,E> implements JpaRoot<E>, Doma
return allowJoins;
}
public List<SqmJoin<?, ?>> getOrderedJoins() {
return orderedJoins;
}
public void addOrderedJoin(SqmJoin<?, ?> join) {
if ( orderedJoins == null ) {
// If we encounter anything but an attribute join, we need to order joins strictly
if ( !( join instanceof SqmAttributeJoin<?, ?> ) ) {
orderedJoins = new ArrayList<>();
visitSqmJoins( this::addOrderedJoinTransitive );
}
}
else {
orderedJoins.add( join );
}
}
private void addOrderedJoinTransitive(SqmJoin<?, ?> join) {
orderedJoins.add( join );
join.visitSqmJoins( this::addOrderedJoinTransitive );
}
@Override
public void addSqmJoin(SqmJoin<E, ?> join) {
if ( !allowJoins ) {
@ -127,29 +153,6 @@ public class SqmRoot<E> extends AbstractSqmFrom<E,E> implements JpaRoot<E>, Doma
return true;
}
@Override
public <X> JpaEntityJoin<X> join(Class<X> entityJavaType) {
return join( nodeBuilder().getDomainModel().entity( entityJavaType ) );
}
@Override
public <X> JpaEntityJoin<X> join(EntityDomainType<X> entity) {
return join( entity, SqmJoinType.INNER );
}
@Override
public <X> JpaEntityJoin<X> join(Class<X> entityJavaType, SqmJoinType joinType) {
return join( nodeBuilder().getDomainModel().entity( entityJavaType ), joinType );
}
@Override
public <X> JpaEntityJoin<X> join(EntityDomainType<X> entity, SqmJoinType joinType) {
final SqmEntityJoin<X> join = new SqmEntityJoin<>( entity, null, joinType, this );
//noinspection unchecked
addSqmJoin( (SqmJoin<E, ?>) join );
return join;
}
@Override
public EntityDomainType<E> getModel() {
return getReferencedPathSource();

10
hibernate-core/src/main/java/org/hibernate/sql/ast/tree/from/AbstractTableGroup.java
View File

@ -107,9 +107,8 @@ public abstract class AbstractTableGroup extends AbstractColumnReferenceQualifie
if ( tableGroupJoins == null ) {
tableGroupJoins = new ArrayList<>();
}
if ( !tableGroupJoins.contains( join ) ) {
tableGroupJoins.add( join );
}
assert !tableGroupJoins.contains( join );
tableGroupJoins.add( join );
}
@Override
@ -117,9 +116,8 @@ public abstract class AbstractTableGroup extends AbstractColumnReferenceQualifie
if ( nestedTableGroupJoins == null ) {
nestedTableGroupJoins = new ArrayList<>();
}
if ( !nestedTableGroupJoins.contains( join ) ) {
nestedTableGroupJoins.add( join );
}
assert !nestedTableGroupJoins.contains( join );
nestedTableGroupJoins.add( join );
}
@Override

10
hibernate-core/src/main/java/org/hibernate/sql/ast/tree/from/CompositeTableGroup.java
View File

@ -94,9 +94,8 @@ public class CompositeTableGroup implements VirtualTableGroup {
if ( tableGroupJoins == null ) {
tableGroupJoins = new ArrayList<>();
}
if ( !tableGroupJoins.contains( join ) ) {
tableGroupJoins.add( join );
}
assert !tableGroupJoins.contains( join );
tableGroupJoins.add( join );
}
@Override
@ -104,9 +103,8 @@ public class CompositeTableGroup implements VirtualTableGroup {
if ( nestedTableGroupJoins == null ) {
nestedTableGroupJoins = new ArrayList<>();
}
if ( !nestedTableGroupJoins.contains( join ) ) {
nestedTableGroupJoins.add( join );
}
assert !nestedTableGroupJoins.contains( join );
nestedTableGroupJoins.add( join );
}
@Override

4
hibernate-core/src/main/java/org/hibernate/sql/ast/tree/from/CorrelatedTableGroup.java
View File

@ -49,9 +49,7 @@ public class CorrelatedTableGroup extends AbstractTableGroup {
@Override
public void addTableGroupJoin(TableGroupJoin join) {
if ( getTableGroupJoins().contains( join ) ) {
return;
}
assert !getTableGroupJoins().contains( join );
assert join.getJoinType() == SqlAstJoinType.INNER;
querySpec.getFromClause().addRoot( join.getJoinedGroup() );
joinPredicateConsumer.accept( join.getPredicate() );

3
hibernate-core/src/main/java/org/hibernate/sql/ast/tree/from/TableGroupJoinProducer.java
View File

@ -32,7 +32,6 @@ public interface TableGroupJoinProducer extends TableGroupProducer {
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAstCreationState creationState) {
return createTableGroupJoin(
navigablePath,
@ -40,7 +39,6 @@ public interface TableGroupJoinProducer extends TableGroupProducer {
explicitSourceAlias,
sqlAstJoinType,
fetched,
nested,
creationState.getSqlAliasBaseGenerator(),
creationState.getSqlExpressionResolver(),
creationState.getCreationContext()
@ -56,7 +54,6 @@ public interface TableGroupJoinProducer extends TableGroupProducer {
String explicitSourceAlias,
SqlAstJoinType sqlAstJoinType,
boolean fetched,
boolean nested,
SqlAliasBaseGenerator aliasBaseGenerator,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext);

10
hibernate-core/src/main/java/org/hibernate/sql/ast/tree/from/UnionTableGroup.java
View File

@ -92,9 +92,8 @@ public class UnionTableGroup implements VirtualTableGroup {
if ( tableGroupJoins == null ) {
tableGroupJoins = new ArrayList<>();
}
if ( !tableGroupJoins.contains( join ) ) {
tableGroupJoins.add( join );
}
assert !tableGroupJoins.contains( join );
tableGroupJoins.add( join );
}
@Override
@ -102,9 +101,8 @@ public class UnionTableGroup implements VirtualTableGroup {
if ( nestedTableGroupJoins == null ) {
nestedTableGroupJoins = new ArrayList<>();
}
if ( !nestedTableGroupJoins.contains( join ) ) {
nestedTableGroupJoins.add( join );
}
assert !nestedTableGroupJoins.contains( join );
nestedTableGroupJoins.add( join );
}
@Override

2
hibernate-core/src/main/java/org/hibernate/sql/results/graph/embeddable/internal/EmbeddableFetchImpl.java
View File

@ -68,9 +68,9 @@ public class EmbeddableFetchImpl extends AbstractFetchParent implements Embeddab
null,
nullable ? SqlAstJoinType.LEFT : SqlAstJoinType.INNER,
true,
false,
creationState.getSqlAstCreationState()
);
lhsTableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}

3
hibernate-core/src/main/java/org/hibernate/sql/results/graph/embeddable/internal/EmbeddableResultImpl.java
View File

@ -54,10 +54,9 @@ public class EmbeddableResultImpl<T> extends AbstractFetchParent implements Embe
resultVariable,
SqlAstJoinType.INNER,
true,
false,
creationState.getSqlAstCreationState()
);
tableGroup.addTableGroupJoin( tableGroupJoin );
return tableGroupJoin.getJoinedGroup();
}
);

22
hibernate-core/src/test/java/org/hibernate/orm/test/join/OuterJoinTest.java
View File

@ -128,6 +128,28 @@ public class OuterJoinTest {
} );
}
@Test
public void testJoinOrderAttributeJoinDependsOnEntityJoin(EntityManagerFactoryScope scope) {
scope.inTransaction( em -> {
List<Tuple> resultList = em.createQuery(
"SELECT a.value, b.value, c.value " +
"FROM A a " +
"INNER JOIN a.cAssociationByKey c " +
"INNER JOIN B b ON a.key = b.key " +
"INNER JOIN c.association ca ON ca.key = b.key " +
"ORDER BY a.key, b.key, c.key",
Tuple.class
)
.getResultList();
assertEquals( 1, resultList.size() );
assertEquals( "a", resultList.get( 0 ).get( 0 ) );
assertEquals( "d", resultList.get( 0 ).get( 1 ) );
assertEquals( "g", resultList.get( 0 ).get( 2 ) );
} );
}
@Test
public void testJoinOrderWithRightNormalJoin(EntityManagerFactoryScope scope) {
scope.inTransaction( em -> {