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/**
* <copyright>
*
* Copyright (c) 2005, 2006, 2007, 2008 Springsite BV (The Netherlands) and others
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Martin Taal
* </copyright>
*
* $Id: OneToOneReferenceAnnotator.java,v 1.11 2009/03/30 07:53:04 mtaal Exp $
*/
package org.eclipse.emf.teneo.annotations.mapper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.teneo.annotations.pamodel.PAnnotatedEReference;
import org.eclipse.emf.teneo.annotations.pannotation.OneToOne;
import org.eclipse.emf.teneo.extension.ExtensionPoint;
/**
* Annotates an ereference.
*
* @author <a href="mailto:mtaal@elver.org">Martin Taal</a>
* @version $Revision: 1.11 $
*/
public class OneToOneReferenceAnnotator extends BaseEFeatureAnnotator implements ExtensionPoint {
// The logger
protected static final Log log = LogFactory.getLog(OneToOneReferenceAnnotator.class);
/** Annotate it */
public void annotate(PAnnotatedEReference aReference) {
final String logStr = aReference.getModelEReference().getName() + "/"
+ aReference.getModelEReference().getEContainingClass().getName();
if (aReference.getOneToMany() != null || aReference.getManyToMany() != null
|| aReference.getManyToOne() != null) {
throw new StoreMappingException("The feature/eclass " + logStr + " should be a OneToOne but "
+ "it already has a OneToMany, ManyToMany or ManyToOne annotation");
}
final EReference eReference = (EReference) aReference.getModelElement();
OneToOne oto = aReference.getOneToOne();
if (oto == null) {
if (log.isDebugEnabled()) {
log.debug("EReference + " + logStr + " does not have a onetoone annotation, adding one");
}
oto = getFactory().createOneToOne();
aReference.setOneToOne(oto);
// removed unsettable because it is not used to define optional, it
// is used
// to allow distinction between the default value set or a feature
// which has not been
// set, this is used in validation
// oto.setOptional(!eReference.isRequired() ||
// eReference.isUnsettable());
oto.setOptional(!eReference.isRequired());
oto.setEModelElement(eReference);
} else if (log.isDebugEnabled()) {
log.debug("EReference + " + logStr
+ " has an onetoone annotation setting defaults if required");
}
if (!oto.isSetFetch()) {
oto.setFetch(getFetch(aReference.getAReferenceType()));
}
// determine where to put the mapped-by
if (oto.getMappedBy() == null && setMappedBy(eReference)) {
oto.setMappedBy(eReference.getEOpposite().getName());
}
if (oto.getCascade().isEmpty() && eReference.isContainment()
&& getPersistenceOptions().isSetCascadeAllOnContainment()) {
oto.setOrphanRemoval(true);
}
if (getPersistenceOptions().isSetForeignKeyNames() && aReference.getForeignKey() == null) {
// See bugzilla 211798: handle a specific case when this is a
// bidirectional
// association. In that case the foreign key name has to be
// the same on both sides and is set on the many-side. So use the
// annotated reference from the other side to ensure that the same
// foreign key name
// is used.
if (eReference.getEOpposite() != null && !eReference.getEOpposite().isTransient()) {
final PAnnotatedEReference aOpposite = aReference.getPaModel().getPAnnotated(
eReference.getEOpposite());
if (aOpposite != null && aOpposite.getTransient() == null) {
// don't do anything as otherwise hibernate will create two
// fk's with the same name
// if (aOpposite.getForeignKey() != null) {
// final ForeignKey fk = getFactory().createForeignKey();
// fk.setName(aOpposite.getForeignKey().getName());
// aReference.setForeignKey(fk);
// } else {
// aReference.setForeignKey(createFK(aOpposite));
// }
} else {
aReference.setForeignKey(createFK(aReference));
}
} else {
aReference.setForeignKey(createFK(aReference));
}
}
setCascade(oto.getCascade(), eReference.isContainment());
if (getPersistenceOptions().isMapEmbeddableAsEmbedded()
&& aReference.getAReferenceType().getEmbeddable() != null) {
aReference.setEmbedded(getFactory().createEmbedded());
}
// Note: Sometimes EMF generated getters/setters have a
// very generic type (EObject), if the type can be derived here then
// this should
// be added here
if (oto.getTargetEntity() == null) {
if (aReference.getAReferenceType() != null
&& aReference.getAReferenceType().getEntity() != null
&& aReference.getAReferenceType().getEntity().getName() != null) {
oto.setTargetEntity(aReference.getAReferenceType().getEntity().getName());
} else {
oto.setTargetEntity(getEntityName(eReference.getEReferenceType()));
}
}
}
}
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