org.hibernate.graph.internal.parse.PathQualifierType Maven / Gradle / Ivy
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Hibernate's core ORM functionality
/*
* 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.graph.internal.parse;
import org.hibernate.graph.CannotContainSubGraphException;
import org.hibernate.metamodel.model.domain.spi.ManagedTypeDescriptor;
import org.hibernate.metamodel.model.domain.spi.SimpleTypeDescriptor;
/**
* @author Steve Ebersole
*/
@SuppressWarnings("unchecked")
public enum PathQualifierType {
KEY(
(attributeNode, subTypeName, sessionFactory) ->
attributeNode.makeKeySubGraph(
resolveSubTypeManagedType(
attributeNode.getAttributeDescriptor().getKeyGraphType(),
subTypeName
)
)
),
VALUE(
(attributeNode, subTypeName, sessionFactory) ->
attributeNode.makeSubGraph(
resolveSubTypeManagedType(
attributeNode.getAttributeDescriptor().getValueGraphType(),
subTypeName
)
)
);
private static ManagedTypeDescriptor resolveSubTypeManagedType(
SimpleTypeDescriptor graphType,
String subTypeName) {
if ( !( graphType instanceof ManagedTypeDescriptor ) ) {
throw new CannotContainSubGraphException( "The given type [" + graphType + "] is not a ManagedType" );
}
ManagedTypeDescriptor managedType = (ManagedTypeDescriptor) graphType;
if ( subTypeName != null ) {
managedType = managedType.findSubType( subTypeName );
}
return managedType;
}
private final SubGraphGenerator subGraphCreator;
PathQualifierType(SubGraphGenerator subGraphCreator) {
this.subGraphCreator = subGraphCreator;
}
public SubGraphGenerator getSubGraphCreator() {
return subGraphCreator;
}
}