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/*******************************************************************************
* Copyright (c) 2010, 2012 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.List;
import org.eclipse.jpt.common.core.utility.TextRange;
import org.eclipse.jpt.jpa.core.context.Entity;
import org.eclipse.jpt.jpa.core.context.OverrideRelationship;
import org.eclipse.jpt.jpa.core.context.ReadOnlyBaseColumn;
import org.eclipse.jpt.jpa.core.context.ReadOnlyTableColumn.Owner;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinColumn;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinTable;
import org.eclipse.jpt.jpa.core.context.ReadOnlyRelationship;
import org.eclipse.jpt.jpa.core.context.Relationship;
import org.eclipse.jpt.jpa.core.context.RelationshipMapping;
import org.eclipse.jpt.jpa.core.context.TypeMapping;
import org.eclipse.jpt.jpa.core.context.VirtualJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.VirtualJoinTableRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.VirtualRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.java.JavaVirtualAssociationOverride;
import org.eclipse.jpt.jpa.core.internal.context.JptValidator;
import org.eclipse.jpt.jpa.core.internal.context.java.AbstractJavaJpaContextNode;
import org.eclipse.jpt.jpa.core.internal.jpa2.context.java.GenericJavaVirtualOverrideJoinTableRelationshipStrategy2_0;
import org.eclipse.jpt.jpa.core.jpa2.context.MappingRelationshipStrategy2_0;
import org.eclipse.jpt.jpa.core.jpa2.context.ReadOnlyAssociationOverride2_0;
import org.eclipse.jpt.jpa.core.jpa2.context.VirtualOverrideRelationship2_0;
import org.eclipse.jpt.jpa.db.Table;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class GenericJavaVirtualOverrideRelationship
extends AbstractJavaJpaContextNode
implements VirtualOverrideRelationship2_0
{
protected VirtualRelationshipStrategy strategy;
protected final VirtualJoinColumnRelationshipStrategy joinColumnStrategy;
// JPA 2.0
protected final VirtualJoinTableRelationshipStrategy 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 VirtualRelationshipStrategy getStrategy() {
return this.strategy;
}
protected void setStrategy(VirtualRelationshipStrategy strategy) {
VirtualRelationshipStrategy old = this.strategy;
this.strategy = strategy;
this.firePropertyChanged(STRATEGY_PROPERTY, old, strategy);
}
protected VirtualRelationshipStrategy buildStrategy() {
return this.isJpa2_0Compatible() ?
this.buildStrategy2_0() :
this.joinColumnStrategy;
}
/**
* The overridden mapping determines the override's strategy.
*/
protected VirtualRelationshipStrategy buildStrategy2_0() {
MappingRelationshipStrategy2_0 mappingStrategy = this.getMappingStrategy();
return (mappingStrategy != null) ?
(VirtualRelationshipStrategy) mappingStrategy.selectOverrideStrategy(this) :
this.buildMissingMappingStrategy();
}
/**
* Get the strategy from the overridden mapping.
*/
protected MappingRelationshipStrategy2_0 getMappingStrategy() {
RelationshipMapping mapping = this.getMapping();
return (mapping == null) ? null : (MappingRelationshipStrategy2_0) mapping.getRelationship().getStrategy();
}
/**
* Return the strategy to use when the override's name does not match the
* name of an appropriate relationship mapping.
*/
protected VirtualRelationshipStrategy buildMissingMappingStrategy() {
return this.joinColumnStrategy.hasSpecifiedJoinColumns() ?
this.joinColumnStrategy :
this.joinTableStrategy;
}
// ********** join column strategy **********
public VirtualJoinColumnRelationshipStrategy getJoinColumnStrategy() {
return this.joinColumnStrategy;
}
public boolean strategyIsJoinColumn() {
return this.strategy == this.joinColumnStrategy;
}
public boolean mayHaveDefaultJoinColumn() {
// association overrides do not have defaults
return false;
}
protected VirtualJoinColumnRelationshipStrategy buildJoinColumnStrategy() {
return new GenericJavaVirtualOverrideJoinColumnRelationshipStrategy(this);
}
// ********** join table strategy **********
public VirtualJoinTableRelationshipStrategy getJoinTableStrategy() {
return this.joinTableStrategy;
}
public boolean strategyIsJoinTable() {
return this.strategy == this.joinTableStrategy;
}
public boolean mayHaveDefaultJoinTable() {
// association overrides do not have defaults
return false;
}
protected VirtualJoinTableRelationshipStrategy 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();
}
protected JavaVirtualAssociationOverride getAssociationOverride() {
return this.getParent();
}
protected ReadOnlyAssociationOverride2_0 getAssociationOverride2_0() {
return (ReadOnlyAssociationOverride2_0) this.getAssociationOverride();
}
public TypeMapping getTypeMapping() {
return this.getAssociationOverride().getTypeMapping();
}
public String getAttributeName() {
return this.getAssociationOverride().getName();
}
public boolean tableNameIsInvalid(String tableName) {
return this.getAssociationOverride().tableNameIsInvalid(tableName);
}
public Iterable<String> getCandidateTableNames() {
return this.getAssociationOverride().getCandidateTableNames();
}
public Table resolveDbTable(String tableName) {
return this.getAssociationOverride().resolveDbTable(tableName);
}
public String getDefaultTableName() {
return this.getAssociationOverride().getDefaultTableName();
}
public JptValidator buildColumnValidator(ReadOnlyBaseColumn column, Owner owner) {
return this.getAssociationOverride().buildColumnValidator(column, owner);
}
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 ReadOnlyRelationship resolveOverriddenRelationship() {
return this.getAssociationOverride().resolveOverriddenRelationship();
}
// ********** validation **********
public TextRange getValidationTextRange() {
return this.getAssociationOverride().getValidationTextRange();
}
@Override
public void validate(List<IMessage> messages, IReporter reporter) {
super.validate(messages, reporter);
this.strategy.validate(messages, reporter);
}
public JptValidator buildJoinTableValidator(ReadOnlyJoinTable table) {
return this.getAssociationOverride2_0().buildJoinTableValidator(table);
}
public JptValidator buildJoinTableJoinColumnValidator(ReadOnlyJoinColumn column, ReadOnlyJoinColumn.Owner owner) {
return this.getAssociationOverride2_0().buildJoinTableJoinColumnValidator(column, owner);
}
public JptValidator buildJoinTableInverseJoinColumnValidator(ReadOnlyJoinColumn column, ReadOnlyJoinColumn.Owner owner) {
return this.getAssociationOverride2_0().buildJoinTableInverseJoinColumnValidator(column, owner);
}
}
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