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ForeignKeyDescriptor.java
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ForeignKeyDescriptor.java
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/*
* 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.metamodel.mapping;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.hibernate.query.NavigablePath;
import org.hibernate.sql.ast.SqlAstJoinType;
import org.hibernate.sql.ast.spi.SqlAstCreationContext;
import org.hibernate.sql.ast.spi.SqlExpressionResolver;
import org.hibernate.sql.ast.tree.from.TableGroup;
import org.hibernate.sql.ast.tree.from.TableReference;
import org.hibernate.sql.ast.tree.predicate.Predicate;
import org.hibernate.sql.results.graph.DomainResult;
import org.hibernate.sql.results.graph.DomainResultCreationState;
/**
* @author Steve Ebersole
*/
public interface ForeignKeyDescriptor extends VirtualModelPart {
String PART_NAME = "{fk}";
DomainResult createCollectionFetchDomainResult(
NavigablePath collectionPath,
TableGroup tableGroup,
DomainResultCreationState creationState);
DomainResult createDomainResult(
NavigablePath navigablePath,
TableGroup tableGroup,
DomainResultCreationState creationState);
DomainResult createDomainResult(
NavigablePath navigablePath,
TableGroup tableGroup,
boolean isKeyReferringSide,
DomainResultCreationState creationState);
Predicate generateJoinPredicate(
TableGroup lhs,
TableGroup tableGroup,
SqlAstJoinType sqlAstJoinType,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext);
Predicate generateJoinPredicate(
TableReference lhs,
TableReference rhs,
SqlAstJoinType sqlAstJoinType,
SqlExpressionResolver sqlExpressionResolver,
SqlAstCreationContext creationContext);
@Override
default String getPartName() {
return PART_NAME;
}
/**
* Visits the FK "referring" columns
*/
@Override
default int forEachSelection(int offset, SelectionConsumer consumer) {
return visitReferringColumns( offset, consumer );
}
Object getAssociationKeyFromTarget(Object targetObject, SharedSessionContractImplementor session);
int visitReferringColumns(int offset, SelectionConsumer consumer);
int visitTargetColumns(int offset, SelectionConsumer consumer);
default int visitReferringColumns(SelectionConsumer consumer) {
return visitReferringColumns( 0, consumer );
}
default int visitTargetColumns(SelectionConsumer consumer) {
return visitTargetColumns( 0, consumer );
}
AssociationKey getAssociationKey();
}