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/*******************************************************************************
* Copyright (c) 2010, 2011 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.java;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jpt.core.context.OverrideRelationship;
import org.eclipse.jpt.core.context.Entity;
import org.eclipse.jpt.core.context.RelationshipMapping;
import org.eclipse.jpt.core.context.Relationship;
import org.eclipse.jpt.core.context.TypeMapping;
import org.eclipse.jpt.core.context.java.JavaVirtualAssociationOverride;
import org.eclipse.jpt.core.context.java.JavaVirtualJoinColumnRelationshipStrategy;
import org.eclipse.jpt.core.context.java.JavaVirtualJoinTableRelationshipStrategy;
import org.eclipse.jpt.core.context.java.JavaVirtualRelationshipStrategy;
import org.eclipse.jpt.core.internal.context.java.AbstractJavaJpaContextNode;
import org.eclipse.jpt.core.internal.jpa2.context.java.GenericJavaVirtualOverrideJoinTableRelationshipStrategy2_0;
import org.eclipse.jpt.core.jpa2.context.java.JavaVirtualOverrideRelationship2_0;
import org.eclipse.jpt.core.utility.TextRange;
public class GenericJavaVirtualOverrideRelationship
extends AbstractJavaJpaContextNode
implements JavaVirtualOverrideRelationship2_0
{
protected JavaVirtualRelationshipStrategy strategy;
protected final JavaVirtualJoinColumnRelationshipStrategy joinColumnStrategy;
// JPA 2.0
protected final JavaVirtualJoinTableRelationshipStrategy joinTableStrategy;
public GenericJavaVirtualOverrideRelationship(JavaVirtualAssociationOverride parent) {
super(parent);
this.joinColumnStrategy = this.buildJoinColumnStrategy();
this.joinTableStrategy = this.buildJoinTableStrategy();
}
// ********** synchronize/update **********
@Override
public void update() {
super.update();
this.setStrategy(this.buildStrategy());
this.joinColumnStrategy.update();
this.joinTableStrategy.update();
}
// ********** strategy **********
public JavaVirtualRelationshipStrategy getPredominantJoiningStrategy() {
return this.strategy;
}
protected void setStrategy(JavaVirtualRelationshipStrategy strategy) {
JavaVirtualRelationshipStrategy old = this.strategy;
this.strategy = strategy;
this.firePropertyChanged(PREDOMINANT_JOINING_STRATEGY_PROPERTY, old, strategy);
}
protected JavaVirtualRelationshipStrategy buildStrategy() {
if (this.isJpa2_0Compatible()) {
if (this.joinColumnStrategy.hasSpecifiedJoinColumns()) {
return this.joinColumnStrategy;
}
return this.joinTableStrategy;
}
return this.joinColumnStrategy;
}
// ********** join column strategy **********
public JavaVirtualJoinColumnRelationshipStrategy getJoinColumnJoiningStrategy() {
return this.joinColumnStrategy;
}
public boolean usesJoinColumnJoiningStrategy() {
return this.strategy == this.joinColumnStrategy;
}
public boolean mayHaveDefaultJoinColumn() {
return false;
}
protected JavaVirtualJoinColumnRelationshipStrategy buildJoinColumnStrategy() {
return new GenericJavaVirtualOverrideJoinColumnRelationshipStrategy(this);
}
// ********** join table strategy **********
public JavaVirtualJoinTableRelationshipStrategy getJoinTableJoiningStrategy() {
return this.joinTableStrategy;
}
public boolean usesJoinTableJoiningStrategy() {
return this.strategy == this.joinTableStrategy;
}
public boolean mayHaveDefaultJoinTable() {
return this.isVirtual();
}
protected JavaVirtualJoinTableRelationshipStrategy buildJoinTableStrategy() {
return new GenericJavaVirtualOverrideJoinTableRelationshipStrategy2_0(this);
}
// ********** conversions **********
public void initializeOn(Relationship newRelationship) {
newRelationship.initializeFromJoinTableRelationship(this);
newRelationship.initializeFromJoinColumnRelationship(this);
}
public void initializeOnSpecified(OverrideRelationship specifiedRelationship) {
specifiedRelationship.initializeFromVirtualJoinColumnRelationship(this);
specifiedRelationship.initializeFromVirtualJoinTableRelationship(this);
}
// ********** misc **********
@Override
public JavaVirtualAssociationOverride getParent() {
return (JavaVirtualAssociationOverride) super.getParent();
}
public JavaVirtualAssociationOverride getAssociationOverride() {
return this.getParent();
}
public TypeMapping getTypeMapping() {
return this.getAssociationOverride().getContainer().getTypeMapping();
}
public Entity getEntity() {
TypeMapping typeMapping = this.getTypeMapping();
return (typeMapping instanceof Entity) ? (Entity) typeMapping : null;
}
public boolean isVirtual() {
return true;
}
public RelationshipMapping getMapping() {
return this.getAssociationOverride().getMapping();
}
public Relationship resolveOverriddenRelationship() {
return this.getAssociationOverride().resolveOverriddenRelationship();
}
// ********** validation **********
public TextRange getValidationTextRange(CompilationUnit astRoot) {
return null;
}
}
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