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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.jpa.core.internal.jpa1.context.java;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.common.utility.internal.CollectionTools;
import org.eclipse.jpt.common.utility.internal.iterators.EmptyIterator;
import org.eclipse.jpt.common.utility.internal.iterators.FilteringIterator;
import org.eclipse.jpt.jpa.core.MappingKeys;
import org.eclipse.jpt.jpa.core.context.TypeMapping;
import org.eclipse.jpt.jpa.core.context.java.JavaAttributeOverrideContainer;
import org.eclipse.jpt.jpa.core.context.java.JavaEmbeddedIdMapping;
import org.eclipse.jpt.jpa.core.context.java.JavaPersistentAttribute;
import org.eclipse.jpt.jpa.core.internal.context.TypeMappingTools;
import org.eclipse.jpt.jpa.core.internal.context.java.AbstractJavaBaseEmbeddedMapping;
import org.eclipse.jpt.jpa.core.internal.validation.DefaultJpaValidationMessages;
import org.eclipse.jpt.jpa.core.internal.validation.JpaValidationMessages;
import org.eclipse.jpt.jpa.core.jpa2.context.EmbeddedIdMapping2_0;
import org.eclipse.jpt.jpa.core.resource.java.EmbeddedIdAnnotation;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
/**
* Java embedded ID mapping
*/
public class GenericJavaEmbeddedIdMapping
extends AbstractJavaBaseEmbeddedMapping<EmbeddedIdAnnotation>
implements EmbeddedIdMapping2_0, JavaEmbeddedIdMapping
{
/* 2.0 feature - a relationship may map this embedded id */
protected boolean mappedByRelationship;
public GenericJavaEmbeddedIdMapping(JavaPersistentAttribute parent) {
super(parent);
}
// ********** synchronize/update **********
@Override
public void update() {
super.update();
this.setMappedByRelationship(this.buildMappedByRelationship());
}
// ********** mapped by relationship **********
public boolean isMappedByRelationship() {
return this.mappedByRelationship;
}
protected void setMappedByRelationship(boolean value) {
boolean old = this.mappedByRelationship;
this.mappedByRelationship = value;
this.firePropertyChanged(MAPPED_BY_RELATIONSHIP_PROPERTY, old, value);
}
protected boolean buildMappedByRelationship() {
return this.isJpa2_0Compatible() && this.buildMappedByRelationship_();
}
protected boolean buildMappedByRelationship_() {
return CollectionTools.contains(this.getMappedByRelationshipAttributeNames(), this.getName());
}
protected Iterable<String> getMappedByRelationshipAttributeNames() {
return TypeMappingTools.getMappedByRelationshipAttributeNames(this.getTypeMapping());
}
// ********** misc **********
public String getKey() {
return MappingKeys.EMBEDDED_ID_ATTRIBUTE_MAPPING_KEY;
}
@Override
protected String getAnnotationName() {
return EmbeddedIdAnnotation.ANNOTATION_NAME;
}
@Override
protected Iterator<String> embeddableOverridableAttributeMappingNames() {
return (this.mappedByRelationship) ?
EmptyIterator.<String>instance() :
super.embeddableOverridableAttributeMappingNames();
}
@Override
protected JavaAttributeOverrideContainer.Owner buildAttributeOverrideContainerOwner() {
return new AttributeOverrideContainerOwner();
}
// ********** validation **********
@Override
public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) {
super.validate(messages, reporter, astRoot);
// [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 (this.mappedByRelationship
&& (this.attributeOverrideContainer.specifiedOverridesSize() > 0)) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.EMBEDDED_ID_MAPPING_MAPPED_BY_RELATIONSHIP_AND_ATTRIBUTE_OVERRIDES_SPECIFIED,
EMPTY_STRING_ARRAY,
this.attributeOverrideContainer,
this.attributeOverrideContainer.getValidationTextRange(astRoot)
)
);
}
}
// ********** attribute override container owner *********
protected class AttributeOverrideContainerOwner
extends AbstractJavaBaseEmbeddedMapping<EmbeddedIdAnnotation>.AttributeOverrideContainerOwner
{
@Override
public Iterator<String> allOverridableNames() {
return GenericJavaEmbeddedIdMapping.this.isMappedByRelationship() ?
EmptyIterator.<String>instance() :
super.allOverridableNames();
}
@Override
protected Iterator<String> allOverridableAttributeNames_(TypeMapping typeMapping) {
final Set<String> mappedByRelationshipAttributeNames = this.buildMappedByRelationshipAttributeNames();
if (mappedByRelationshipAttributeNames.isEmpty()) {
return super.allOverridableAttributeNames_(typeMapping);
}
return new FilteringIterator<String>(super.allOverridableAttributeNames_(typeMapping)) {
@Override
protected boolean accept(String attributeName) {
// overridable names are (usually?) qualified with a container mapping,
// which may also be the one mapped by a relationship
int dotIndex = attributeName.indexOf('.');
String qualifier = (dotIndex > 0) ? attributeName.substring(0, dotIndex) : attributeName;
return ! mappedByRelationshipAttributeNames.contains(qualifier);
}
};
}
protected Set<String> buildMappedByRelationshipAttributeNames() {
return CollectionTools.set(GenericJavaEmbeddedIdMapping.this.getMappedByRelationshipAttributeNames());
}
}
}
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