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/*******************************************************************************
* Copyright (c) 2007, 2010 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.core.internal.jpa1.context.orm;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.AttributeMapping;
import org.eclipse.jpt.core.context.TypeMapping;
import org.eclipse.jpt.core.context.orm.OrmAttributeMapping;
import org.eclipse.jpt.core.context.orm.OrmAttributeOverrideContainer;
import org.eclipse.jpt.core.context.orm.OrmEmbeddedIdMapping;
import org.eclipse.jpt.core.context.orm.OrmPersistentAttribute;
import org.eclipse.jpt.core.internal.context.orm.AbstractOrmBaseEmbeddedMapping;
import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages;
import org.eclipse.jpt.core.internal.validation.JpaValidationMessages;
import org.eclipse.jpt.core.jpa2.context.EmbeddedIdMapping2_0;
import org.eclipse.jpt.core.jpa2.context.SingleRelationshipMapping2_0;
import org.eclipse.jpt.core.resource.orm.Attributes;
import org.eclipse.jpt.core.resource.orm.XmlEmbeddedId;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.Tools;
import org.eclipse.jpt.utility.internal.iterables.CompositeIterable;
import org.eclipse.jpt.utility.internal.iterables.FilteringIterable;
import org.eclipse.jpt.utility.internal.iterables.SubIterableWrapper;
import org.eclipse.jpt.utility.internal.iterators.EmptyIterator;
import org.eclipse.jpt.utility.internal.iterators.FilteringIterator;
import org.eclipse.jpt.utility.internal.iterators.TransformationIterator;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class GenericOrmEmbeddedIdMapping
extends AbstractOrmBaseEmbeddedMapping<XmlEmbeddedId>
implements EmbeddedIdMapping2_0, OrmEmbeddedIdMapping
{
/* 2.0 feature - a relationship may map this embedded id */
protected boolean mappedByRelationship;
public GenericOrmEmbeddedIdMapping(OrmPersistentAttribute parent, XmlEmbeddedId resourceMapping) {
super(parent, resourceMapping);
this.mappedByRelationship = calculateMappedByRelationship();
}
public void initializeOn(OrmAttributeMapping newMapping) {
newMapping.initializeFromOrmEmbeddedIdMapping(this);
}
public int getXmlSequence() {
return 10;
}
//*************** AttributeMapping implementation *********************
public String getKey() {
return MappingKeys.EMBEDDED_ID_ATTRIBUTE_MAPPING_KEY;
}
public void addToResourceModel(Attributes resourceAttributes) {
resourceAttributes.getEmbeddedIds().add(this.resourceAttributeMapping);
}
public void removeFromResourceModel(Attributes resourceAttributes) {
resourceAttributes.getEmbeddedIds().remove(this.resourceAttributeMapping);
}
// **************** EmbeddedId2_0 impl ************************************
public boolean isMappedByRelationship() {
return this.mappedByRelationship;
}
protected void setMappedByRelationship(boolean newValue) {
boolean oldValue = this.mappedByRelationship;
this.mappedByRelationship = newValue;
firePropertyChanged(MAPPED_BY_RELATIONSHIP_PROPERTY, oldValue, newValue);
}
protected boolean calculateMappedByRelationship() {
for (SingleRelationshipMapping2_0 each : getMapsIdRelationships()) {
if (Tools.valuesAreEqual(getName(), each.getDerivedIdentity().getMapsIdDerivedIdentityStrategy().getValue())) {
return true;
}
}
return false;
}
protected Iterable<SingleRelationshipMapping2_0> getMapsIdRelationships() {
return new FilteringIterable<SingleRelationshipMapping2_0>(
new SubIterableWrapper<AttributeMapping, SingleRelationshipMapping2_0>(
new CompositeIterable<AttributeMapping>(
getTypeMapping().getAllAttributeMappings(MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY),
getTypeMapping().getAllAttributeMappings(MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY)))) {
@Override
protected boolean accept(SingleRelationshipMapping2_0 o) {
return o.getDerivedIdentity().usesMapsIdDerivedIdentityStrategy();
}
};
}
// **************** overrides *********************************************
@Override
protected Iterator<String> embeddableOverrideableAttributeMappingNames() {
return (isMappedByRelationship()) ?
EmptyIterator.<String>instance()
: super.embeddableOverrideableAttributeMappingNames();
}
@Override
protected OrmAttributeOverrideContainer.Owner buildAttributeOverrideContainerOwner() {
return new AttributeOverrideContainerOwner();
}
protected class AttributeOverrideContainerOwner
extends AbstractOrmBaseEmbeddedMapping.AttributeOverrideContainerOwner
{
@Override
public Iterator<String> allOverridableNames() {
return (GenericOrmEmbeddedIdMapping.this.isMappedByRelationship()) ?
EmptyIterator.<String>instance()
: super.allOverridableNames();
}
@Override
protected Iterator<String> allOverridableAttributeNames_(TypeMapping typeMapping) {
final Collection<String> mappedByRelationshipAttributes = CollectionTools.collection(
new TransformationIterator<SingleRelationshipMapping2_0, String>(getMapsIdRelationships()) {
@Override
protected String transform(SingleRelationshipMapping2_0 next) {
return next.getDerivedIdentity().getMapsIdDerivedIdentityStrategy().getValue();
}
});
return new FilteringIterator<String>(super.allOverridableAttributeNames_(typeMapping)) {
@Override
protected boolean accept(String o) {
if (mappedByRelationshipAttributes.isEmpty()) {
return true;
}
// overrideable names are (usually?) qualified with a container mapping,
// which may also be the one mapped by a relationship
String qualifier =
(o.indexOf('.') > 0) ?
o.substring(0, o.indexOf('.'))
: o;
return ! mappedByRelationshipAttributes.contains(qualifier);
}
};
}
}
// **************** resource -> context ***********************************
@Override
public void update() {
super.update();
setMappedByRelationship(calculateMappedByRelationship());
}
// **************** validation ********************************************
@Override
public void validate(List<IMessage> messages, IReporter reporter) {
super.validate(messages, reporter);
// [JPA 2.0] if the embedded id is mapped by a relationship, then any specified
// attribute overrides are in error
// (in JPA 1.0, this will obviously never be reached)
if (isMappedByRelationship()
&& getAttributeOverrideContainer().specifiedAttributeOverridesSize() > 0) {
TextRange textRange = getAttributeOverrideContainer().getValidationTextRange();
if (!isVirtual()) {
textRange = getAttributeOverrideContainer().specifiedAttributeOverrides().next().getValidationTextRange();
}
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.EMBEDDED_ID_MAPPING_MAPPED_BY_RELATIONSHIP_AND_ATTRIBUTE_OVERRIDES_SPECIFIED,
new String[] {},
getAttributeOverrideContainer(),
textRange));
}
}
}
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