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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.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.AttributeMapping;
import org.eclipse.jpt.core.context.Entity;
import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.context.RelationshipMapping;
import org.eclipse.jpt.core.context.java.JavaMappedByJoiningStrategy;
import org.eclipse.jpt.core.context.java.JavaOwnableRelationshipReference;
import org.eclipse.jpt.core.context.java.JavaRelationshipMapping;
import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages;
import org.eclipse.jpt.core.internal.validation.JpaValidationMessages;
import org.eclipse.jpt.core.resource.java.OwnableRelationshipMappingAnnotation;
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.FilteringIterator;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class GenericJavaMappedByJoiningStrategy
extends AbstractJavaJpaContextNode
implements JavaMappedByJoiningStrategy
{
protected OwnableRelationshipMappingAnnotation mappingAnnotation;
protected String mappedByAttribute;
public GenericJavaMappedByJoiningStrategy(JavaOwnableRelationshipReference parent) {
super(parent);
}
@Override
public JavaOwnableRelationshipReference getParent() {
return (JavaOwnableRelationshipReference) super.getParent();
}
public JavaOwnableRelationshipReference getRelationshipReference() {
return this.getParent();
}
public JavaRelationshipMapping getRelationshipMapping() {
return getParent().getRelationshipMapping();
}
public boolean relationshipIsOwnedBy(RelationshipMapping otherMapping) {
String thisEntity =
(getRelationshipMapping().getEntity()) == null ?
null : getRelationshipMapping().getEntity().getName();
String targetEntity =
(getRelationshipMapping().getResolvedTargetEntity() == null) ?
null : getRelationshipMapping().getResolvedTargetEntity().getName();
return StringTools.stringsAreEqual(
thisEntity,
targetEntity)
&& StringTools.stringsAreEqual(
getMappedByAttribute(),
otherMapping.getName());
}
public String getMappedByAttribute() {
return this.mappedByAttribute;
}
public void setMappedByAttribute(String newMappedByAttribute) {
String oldMappedByAttribute = this.mappedByAttribute;
this.mappedByAttribute = newMappedByAttribute;
this.mappingAnnotation.setMappedBy(newMappedByAttribute);
firePropertyChanged(MAPPED_BY_ATTRIBUTE_PROPERTY, oldMappedByAttribute, newMappedByAttribute);
}
protected void setMappedByAttribute_(String newMappedByAttribute) {
String oldMappedByAttribute = this.mappedByAttribute;
this.mappedByAttribute = newMappedByAttribute;
firePropertyChanged(MAPPED_BY_ATTRIBUTE_PROPERTY, oldMappedByAttribute, newMappedByAttribute);
}
public void addStrategy() {
if (this.mappedByAttribute == null) {
setMappedByAttribute("");
}
}
public void removeStrategy() {
if (this.mappedByAttribute != null) {
setMappedByAttribute(null);
}
}
public void initialize() {
this.mappingAnnotation = this.getRelationshipReference().getMappingAnnotation();
this.mappedByAttribute = this.mappingAnnotation.getMappedBy();
}
public void update() {
this.mappingAnnotation = this.getRelationshipReference().getMappingAnnotation();
setMappedByAttribute_(this.mappingAnnotation.getMappedBy());
}
@Override
public Iterator<String> javaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) {
Iterator<String> result = super.javaCompletionProposals(pos, filter, astRoot);
if (result != null) {
return result;
}
if (this.mappingAnnotation.mappedByTouches(pos, astRoot)) {
result = javaCandidateMappedByAttributeNames(filter);
}
return result;
}
public Iterator<String> candidateMappedByAttributeNames() {
return getRelationshipMapping().allTargetEntityAttributeNames();
}
public 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));
}
// **************** validation *********************************************
@Override
public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) {
super.validate(messages, reporter, astRoot);
if (getMappedByAttribute() == null) {
return;
}
Entity targetEntity = this.getRelationshipMapping().getResolvedTargetEntity();
if (targetEntity == null) {
return; // null target entity is validated elsewhere
}
PersistentAttribute attribute = targetEntity.getPersistentType().resolveAttribute(this.mappedByAttribute);
if (attribute == null) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.MAPPING_UNRESOLVED_MAPPED_BY,
new String[] {this.mappedByAttribute},
this,
this.getValidationTextRange(astRoot)
)
);
return;
}
AttributeMapping mappedByMapping = attribute.getMapping();
if ( ! this.getRelationshipReference().mayBeMappedBy(mappedByMapping)) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.MAPPING_INVALID_MAPPED_BY,
new String[] {this.mappedByAttribute},
this,
this.getValidationTextRange(astRoot)
)
);
return;
}
// if mappedByMapping is not a relationship owner, then it should have
// been flagged in above rule (mappedByIsValid)
if (! ((RelationshipMapping) mappedByMapping).isRelationshipOwner()) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.MAPPING_MAPPED_BY_ON_BOTH_SIDES,
this,
this.getValidationTextRange(astRoot)
)
);
}
}
public TextRange getValidationTextRange(CompilationUnit astRoot) {
return this.mappingAnnotation.getMappedByTextRange(astRoot);
}
}
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