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/*******************************************************************************
* Copyright (c) 2009, 2012 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.jpa.core.internal.context.orm;
import java.util.List;
import org.eclipse.jpt.jpa.core.MappingKeys;
import org.eclipse.jpt.jpa.core.context.AttributeMapping;
import org.eclipse.jpt.jpa.core.context.MappedByRelationship;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinTableRelationship;
import org.eclipse.jpt.jpa.core.context.Relationship;
import org.eclipse.jpt.jpa.core.context.RelationshipMapping;
import org.eclipse.jpt.jpa.core.context.orm.OrmJoinTableRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.orm.OrmManyToManyMapping;
import org.eclipse.jpt.jpa.core.context.orm.OrmManyToManyRelationship;
import org.eclipse.jpt.jpa.core.context.orm.OrmMappedByRelationshipStrategy;
import org.eclipse.jpt.jpa.core.jpa2.context.orm.OrmMappingJoinTableRelationshipStrategy2_0;
import org.eclipse.jpt.jpa.core.jpa2.context.orm.OrmMappingMappedByRelationshipStrategy2_0;
import org.eclipse.jpt.jpa.core.jpa2.context.orm.OrmMappingRelationshipStrategy2_0;
import org.eclipse.jpt.jpa.core.resource.orm.XmlManyToMany;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class GenericOrmManyToManyRelationship
extends AbstractOrmMappingRelationship<OrmManyToManyMapping>
implements OrmManyToManyRelationship
{
protected final OrmMappingMappedByRelationshipStrategy2_0 mappedByStrategy;
protected final OrmMappingJoinTableRelationshipStrategy2_0 joinTableStrategy;
public GenericOrmManyToManyRelationship(OrmManyToManyMapping parent) {
super(parent);
this.mappedByStrategy = this.buildMappedByStrategy();
this.joinTableStrategy = this.buildJoinTableStrategy();
this.strategy = this.buildStrategy();
}
// ********** synchronize/update **********
@Override
public void synchronizeWithResourceModel() {
super.synchronizeWithResourceModel();
this.mappedByStrategy.synchronizeWithResourceModel();
this.joinTableStrategy.synchronizeWithResourceModel();
}
@Override
public void update() {
super.update();
this.mappedByStrategy.update();
this.joinTableStrategy.update();
}
// ********** strategy **********
@Override
protected OrmMappingRelationshipStrategy2_0 buildStrategy() {
if (this.mappedByStrategy.getMappedByAttribute() != null) {
return this.mappedByStrategy;
}
return this.joinTableStrategy;
}
// ********** mapped by strategy **********
public OrmMappedByRelationshipStrategy getMappedByStrategy() {
return this.mappedByStrategy;
}
public boolean strategyIsMappedBy() {
return this.strategy == this.mappedByStrategy;
}
public void setStrategyToMappedBy() {
this.mappedByStrategy.addStrategy();
this.joinTableStrategy.removeStrategy();
this.updateStrategy();
}
public boolean mayBeMappedBy(AttributeMapping mapping) {
return mapping.getKey() == MappingKeys.MANY_TO_MANY_ATTRIBUTE_MAPPING_KEY;
}
protected OrmMappingMappedByRelationshipStrategy2_0 buildMappedByStrategy() {
return new GenericOrmMappedByRelationshipStrategy(this);
}
// ********** join table strategy **********
public OrmJoinTableRelationshipStrategy getJoinTableStrategy() {
return this.joinTableStrategy;
}
public boolean strategyIsJoinTable() {
return this.strategy == this.joinTableStrategy;
}
public void setStrategyToJoinTable() {
// join table is the default strategy, so no need to add to resource
this.mappedByStrategy.removeStrategy();
this.updateStrategy();
}
public boolean mayHaveDefaultJoinTable() {
return this.mappedByStrategy.getMappedByAttribute() == null;
}
protected OrmMappingJoinTableRelationshipStrategy2_0 buildJoinTableStrategy() {
return new GenericOrmMappingJoinTableRelationshipStrategy(this);
}
// ********** conversions **********
public void initializeOn(Relationship newRelationship) {
newRelationship.initializeFromMappedByRelationship(this);
newRelationship.initializeFromJoinTableRelationship(this);
}
@Override
public void initializeFromMappedByRelationship(MappedByRelationship oldRelationship) {
super.initializeFromMappedByRelationship(oldRelationship);
this.mappedByStrategy.initializeFrom(oldRelationship.getMappedByStrategy());
}
@Override
public void initializeFromJoinTableRelationship(ReadOnlyJoinTableRelationship oldRelationship) {
super.initializeFromJoinTableRelationship(oldRelationship);
this.joinTableStrategy.initializeFrom(oldRelationship.getJoinTableStrategy());
}
// ********** misc **********
@Override
protected XmlManyToMany getXmlMapping() {
return (XmlManyToMany) super.getXmlMapping();
}
public XmlManyToMany getXmlContainer() {
return this.getXmlMapping();
}
public boolean isOwner() {
return this.mappedByStrategy.getMappedByAttribute() == null;
}
public boolean isOwnedBy(RelationshipMapping mapping) {
return this.mappedByStrategy.relationshipIsOwnedBy(mapping);
}
// ********** validation **********
@Override
public void validate(List<IMessage> messages, IReporter reporter) {
super.validate(messages, reporter);
this.mappedByStrategy.validate(messages, reporter);
this.joinTableStrategy.validate(messages, reporter);
}
// ********** completion proposals **********
@Override
public Iterable<String> getCompletionProposals(int pos) {
Iterable<String> result = super.getCompletionProposals(pos);
if (result != null) {
return result;
}
result = this.mappedByStrategy.getCompletionProposals(pos);
if (result != null) {
return result;
}
result = this.joinTableStrategy.getCompletionProposals(pos);
if (result != null) {
return result;
}
return null;
}
}
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