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/*******************************************************************************
* Copyright (c) 2006, 2008 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.context.java;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.context.Entity;
import org.eclipse.jpt.core.context.FetchType;
import org.eclipse.jpt.core.context.TypeMapping;
import org.eclipse.jpt.core.context.java.JavaPersistentAttribute;
import org.eclipse.jpt.core.context.java.JavaRelationshipMapping;
import org.eclipse.jpt.core.internal.context.MappingTools;
import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages;
import org.eclipse.jpt.core.internal.validation.JpaValidationMessages;
import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute;
import org.eclipse.jpt.core.resource.java.RelationshipMappingAnnotation;
import org.eclipse.jpt.core.utility.TextRange;
import org.eclipse.jpt.utility.Filter;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.jpt.utility.internal.iterators.EmptyIterator;
import org.eclipse.jpt.utility.internal.iterators.FilteringIterator;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
/**
*
*/
public abstract class AbstractJavaRelationshipMapping<T extends RelationshipMappingAnnotation>
extends AbstractJavaAttributeMapping<T>
implements JavaRelationshipMapping
{
protected String specifiedTargetEntity;
protected String defaultTargetEntity;
protected Entity resolvedTargetEntity;
protected final JavaCascade cascade;
protected FetchType specifiedFetch;
protected AbstractJavaRelationshipMapping(JavaPersistentAttribute parent) {
super(parent);
this.cascade = new JavaCascade(this);
}
@Override
public JavaPersistentAttribute getParent() {
return (JavaPersistentAttribute) super.getParent();
}
// ********** target entity **********
public String getTargetEntity() {
return (this.specifiedTargetEntity != null) ? this.specifiedTargetEntity : this.defaultTargetEntity;
}
public String getSpecifiedTargetEntity() {
return this.specifiedTargetEntity;
}
public void setSpecifiedTargetEntity(String targetEntity) {
String old = this.specifiedTargetEntity;
this.specifiedTargetEntity = targetEntity;
this.getResourceMapping().setTargetEntity(targetEntity);
this.firePropertyChanged(SPECIFIED_TARGET_ENTITY_PROPERTY, old, targetEntity);
}
protected void setSpecifiedTargetEntity_(String targetEntity) {
String old = this.specifiedTargetEntity;
this.specifiedTargetEntity = targetEntity;
this.firePropertyChanged(SPECIFIED_TARGET_ENTITY_PROPERTY, old, targetEntity);
}
public String getDefaultTargetEntity() {
return this.defaultTargetEntity;
}
protected void setDefaultTargetEntity(String targetEntity) {
String old = this.defaultTargetEntity;
this.defaultTargetEntity = targetEntity;
this.firePropertyChanged(DEFAULT_TARGET_ENTITY_PROPERTY, old, targetEntity);
}
public Entity getResolvedTargetEntity() {
return this.resolvedTargetEntity;
}
protected void setResolvedTargetEntity(Entity entity) {
Entity old = this.resolvedTargetEntity;
this.resolvedTargetEntity = entity;
this.firePropertyChanged(RESOLVED_TARGET_ENTITY_PROPERTY, old, entity);
}
// ********** cascade **********
public JavaCascade getCascade() {
return this.cascade;
}
// ********** fetch **********
public FetchType getFetch() {
return (this.specifiedFetch != null) ? this.specifiedFetch : this.getDefaultFetch();
}
public FetchType getSpecifiedFetch() {
return this.specifiedFetch;
}
public void setSpecifiedFetch(FetchType fetch) {
FetchType old = this.specifiedFetch;
this.specifiedFetch = fetch;
this.getResourceMapping().setFetch(FetchType.toJavaResourceModel(fetch));
this.firePropertyChanged(SPECIFIED_FETCH_PROPERTY, old, fetch);
}
protected void setSpecifiedFetch_(FetchType fetch) {
FetchType old = this.specifiedFetch;
this.specifiedFetch = fetch;
this.firePropertyChanged(SPECIFIED_FETCH_PROPERTY, old, fetch);
}
// ********** resource => context **********
@Override
public void initialize(JavaResourcePersistentAttribute jrpa) {
this.defaultTargetEntity = this.buildDefaultTargetEntity(jrpa);
super.initialize(jrpa);
}
@Override
public void update(JavaResourcePersistentAttribute jrpa) {
this.setDefaultTargetEntity(this.buildDefaultTargetEntity(jrpa));
super.update(jrpa);
}
@Override
protected void initialize(T relationshipMappingAnnotation) {
this.specifiedFetch = this.buildFetch(relationshipMappingAnnotation);
this.cascade.initialize(relationshipMappingAnnotation);
this.specifiedTargetEntity = this.buildSpecifiedTargetEntity(relationshipMappingAnnotation);
this.resolvedTargetEntity = this.buildResolvedTargetEntity(relationshipMappingAnnotation);
}
@Override
protected void update(T relationshipMappingAnnotation) {
super.update(relationshipMappingAnnotation);
this.setSpecifiedFetch_(this.buildFetch(relationshipMappingAnnotation));
this.cascade.update(relationshipMappingAnnotation);
this.setSpecifiedTargetEntity_(this.buildSpecifiedTargetEntity(relationshipMappingAnnotation));
this.setResolvedTargetEntity(this.buildResolvedTargetEntity(relationshipMappingAnnotation));
}
protected FetchType buildFetch(T relationshipMappingAnnotation) {
return FetchType.fromJavaResourceModel(relationshipMappingAnnotation.getFetch());
}
protected String buildSpecifiedTargetEntity(T relationshipMappingAnnotation) {
return relationshipMappingAnnotation.getTargetEntity();
}
protected abstract String buildDefaultTargetEntity(JavaResourcePersistentAttribute jrpa);
protected Entity buildResolvedTargetEntity(T relationshipMappingAnnotation) {
String qualifiedTargetEntity = getDefaultTargetEntity();
if (getSpecifiedTargetEntity() != null) {
qualifiedTargetEntity = relationshipMappingAnnotation.getFullyQualifiedTargetEntity();
}
if (qualifiedTargetEntity == null) {
return null;
}
return getPersistenceUnit().getEntity(qualifiedTargetEntity);
}
// ********** RelationshipMapping implementation **********
public Entity getEntity() {
TypeMapping typeMapping = this.getTypeMapping();
return (typeMapping instanceof Entity) ? (Entity) typeMapping : null;
}
public String getJoinTableDefaultName() {
return MappingTools.buildJoinTableDefaultName(this);
}
// ********** convenience methods **********
protected Iterator<String> allTargetEntityAttributeNames() {
Entity targetEntity = this.getResolvedTargetEntity();
return (targetEntity == null) ? EmptyIterator.<String> instance() : targetEntity.getPersistentType().allAttributeNames();
}
public Iterator<String> candidateMappedByAttributeNames() {
return this.allTargetEntityAttributeNames();
}
protected Iterator<String> candidateMappedByAttributeNames(Filter<String> filter) {
return new FilteringIterator<String, String>(this.candidateMappedByAttributeNames(), filter);
}
protected Iterator<String> javaCandidateMappedByAttributeNames(Filter<String> filter) {
return StringTools.convertToJavaStringLiterals(this.candidateMappedByAttributeNames(filter));
}
@Override
public void validate(List<IMessage> messages, CompilationUnit astRoot) {
super.validate(messages, astRoot);
validateTargetEntity(messages, astRoot);
}
protected void validateTargetEntity(List<IMessage> messages, CompilationUnit astRoot) {
if (getTargetEntity() == null) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.TARGET_ENTITY_NOT_DEFINED,
new String[] {this.getAttributeName()},
this,
this.getValidationTextRange(astRoot)
)
);
}
else if (getResolvedTargetEntity() == null) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.TARGET_ENTITY_IS_NOT_AN_ENTITY,
new String[] {getTargetEntity(), this.getAttributeName()},
this,
this.getTargetEntityTextRange(astRoot)
)
);
}
}
protected TextRange getTextRange(TextRange textRange, CompilationUnit astRoot) {
return (textRange != null) ? textRange : this.getParent().getValidationTextRange(astRoot);
}
protected TextRange getTargetEntityTextRange(CompilationUnit astRoot) {
return this.getTextRange(this.getResourceMapping().getTargetEntityTextRange(astRoot), astRoot);
}
}
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