org.hibernate.cfg.ToOneBinder Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
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*/
package org.hibernate.cfg;
import javax.persistence.ManyToOne;
import javax.persistence.OneToOne;
import org.hibernate.AssertionFailure;
import org.hibernate.annotations.common.reflection.XClass;
import org.hibernate.annotations.common.reflection.XProperty;
/**
* Work in progress
* The goal of this class is to aggregate all operations
* related to ToOne binding operations
*
* @author Emmanuel Bernard
*/
public class ToOneBinder {
public static String getReferenceEntityName(PropertyData propertyData, XClass targetEntity, Mappings mappings) {
if ( AnnotationBinder.isDefault( targetEntity, mappings ) ) {
return propertyData.getClassOrElementName();
}
else {
return targetEntity.getName();
}
}
public static String getReferenceEntityName(PropertyData propertyData, Mappings mappings) {
XClass targetEntity = getTargetEntity( propertyData, mappings );
if ( AnnotationBinder.isDefault( targetEntity, mappings ) ) {
return propertyData.getClassOrElementName();
}
else {
return targetEntity.getName();
}
}
public static XClass getTargetEntity(PropertyData propertyData, Mappings mappings) {
XProperty property = propertyData.getProperty();
return mappings.getReflectionManager().toXClass( getTargetEntityClass( property ) );
}
private static Class getTargetEntityClass(XProperty property) {
final ManyToOne mTo = property.getAnnotation( ManyToOne.class );
if (mTo != null) {
return mTo.targetEntity();
}
final OneToOne oTo = property.getAnnotation( OneToOne.class );
if (oTo != null) {
return oTo.targetEntity();
}
throw new AssertionFailure("Unexpected discovery of a targetEntity: " + property.getName() );
}
}