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/*******************************************************************************
* Copyright (c) 2009 Oracle.
* 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:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.eclipselink.core.internal.context.java;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.AttributeMapping;
import org.eclipse.jpt.core.context.JoiningStrategy;
import org.eclipse.jpt.core.context.java.JavaJoinColumnEnabledRelationshipReference;
import org.eclipse.jpt.core.context.java.JavaJoinColumnJoiningStrategy;
import org.eclipse.jpt.core.internal.context.java.AbstractJavaOneToManyRelationshipReference;
import org.eclipse.jpt.core.internal.context.java.GenericJavaJoinColumnJoiningStrategy;
import org.eclipse.jpt.eclipselink.core.context.EclipseLinkOneToManyRelationshipReference;
import org.eclipse.jpt.utility.Filter;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class EclipseLinkJavaOneToManyRelationshipReference
extends AbstractJavaOneToManyRelationshipReference
implements EclipseLinkOneToManyRelationshipReference,
JavaJoinColumnEnabledRelationshipReference
{
protected final JavaJoinColumnJoiningStrategy joinColumnJoiningStrategy;
public EclipseLinkJavaOneToManyRelationshipReference(
EclipseLinkJavaOneToManyMapping parent) {
super(parent);
this.joinColumnJoiningStrategy = buildJoinColumnJoiningStrategy();
}
protected JavaJoinColumnJoiningStrategy buildJoinColumnJoiningStrategy() {
return new GenericJavaJoinColumnJoiningStrategy(this);
}
@Override
public EclipseLinkJavaOneToManyMapping getRelationshipMapping() {
return (EclipseLinkJavaOneToManyMapping) getParent();
}
@Override
protected JoiningStrategy calculatePredominantJoiningStrategy() {
if (this.mappedByJoiningStrategy.getMappedByAttribute() != null) {
return this.mappedByJoiningStrategy;
}
else if (this.joinColumnJoiningStrategy.hasSpecifiedJoinColumns()) {
return this.joinColumnJoiningStrategy;
}
else {
return this.joinTableJoiningStrategy;
}
}
@Override
public Iterator<String> javaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) {
Iterator<String> result = super.javaCompletionProposals(pos, filter, astRoot);
if (result == null) {
result = this.joinColumnJoiningStrategy.javaCompletionProposals(pos, filter, astRoot);
}
return result;
}
// **************** mapped by **********************************************
@Override
public void setMappedByJoiningStrategy() {
super.setMappedByJoiningStrategy();
this.joinColumnJoiningStrategy.removeStrategy();
}
@Override
public boolean mayBeMappedBy(AttributeMapping mappedByMapping) {
return super.mayBeMappedBy(mappedByMapping) ||
mappedByMapping.getKey() == MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY;
}
// **************** join table *********************************************
@Override
public void setJoinTableJoiningStrategy() {
super.setJoinTableJoiningStrategy();
this.joinColumnJoiningStrategy.removeStrategy();
}
@Override
public boolean mayHaveDefaultJoinTable() {
return super.mayHaveDefaultJoinTable()
&& ! this.joinColumnJoiningStrategy.hasSpecifiedJoinColumns();
}
// **************** join columns *******************************************
public JavaJoinColumnJoiningStrategy getJoinColumnJoiningStrategy() {
return this.joinColumnJoiningStrategy;
}
public boolean usesJoinColumnJoiningStrategy() {
return getPredominantJoiningStrategy() == this.joinColumnJoiningStrategy;
}
public void setJoinColumnJoiningStrategy() {
this.joinColumnJoiningStrategy.addStrategy();
this.mappedByJoiningStrategy.removeStrategy();
this.joinTableJoiningStrategy.removeStrategy();
}
public void unsetJoinColumnJoiningStrategy() {
this.joinColumnJoiningStrategy.removeStrategy();
}
public boolean mayHaveDefaultJoinColumn() {
return this.mappedByJoiningStrategy.getMappedByAttribute() == null
&& this.joinTableJoiningStrategy.getJoinTable() == null;
}
// **************** resource => context ************************************
@Override
protected void initializeJoiningStrategies() {
this.joinColumnJoiningStrategy.initialize();
super.initializeJoiningStrategies();
}
@Override
protected void updateJoiningStrategies() {
this.joinColumnJoiningStrategy.update();
super.updateJoiningStrategies();
}
// **************** Validation *********************************************
@Override
public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) {
super.validate(messages, reporter, astRoot);
this.joinColumnJoiningStrategy.validate(messages, reporter, astRoot);
}
}