| /******************************************************************************* |
| * 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.eclipselink.core.internal.context.java; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jpt.core.MappingKeys; |
| import org.eclipse.jpt.core.context.AttributeMapping; |
| import org.eclipse.jpt.core.context.JoiningStrategy; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumnEnabledRelationshipReference; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumnJoiningStrategy; |
| import org.eclipse.jpt.core.internal.context.java.AbstractJavaOneToManyRelationshipReference; |
| import org.eclipse.jpt.core.internal.context.java.GenericJavaJoinColumnJoiningStrategy; |
| import org.eclipse.jpt.eclipselink.core.context.EclipseLinkOneToManyRelationshipReference; |
| import org.eclipse.jpt.utility.Filter; |
| import org.eclipse.wst.validation.internal.provisional.core.IMessage; |
| import org.eclipse.wst.validation.internal.provisional.core.IReporter; |
| |
| public class JavaEclipseLinkOneToManyRelationshipReference |
| extends AbstractJavaOneToManyRelationshipReference |
| implements EclipseLinkOneToManyRelationshipReference, |
| JavaJoinColumnEnabledRelationshipReference |
| { |
| protected final JavaJoinColumnJoiningStrategy joinColumnJoiningStrategy; |
| |
| |
| public JavaEclipseLinkOneToManyRelationshipReference( |
| JavaEclipseLinkOneToManyMapping parent) { |
| super(parent); |
| this.joinColumnJoiningStrategy = buildJoinColumnJoiningStrategy(); |
| } |
| |
| |
| protected JavaJoinColumnJoiningStrategy buildJoinColumnJoiningStrategy() { |
| return new GenericJavaJoinColumnJoiningStrategy(this); |
| } |
| |
| @Override |
| public JavaEclipseLinkOneToManyMapping getRelationshipMapping() { |
| return (JavaEclipseLinkOneToManyMapping) getParent(); |
| } |
| |
| |
| @Override |
| protected JoiningStrategy calculatePredominantJoiningStrategy() { |
| if (this.mappedByJoiningStrategy.getMappedByAttribute() != null) { |
| return this.mappedByJoiningStrategy; |
| } |
| else if (this.joinColumnJoiningStrategy.hasSpecifiedJoinColumns()) { |
| return this.joinColumnJoiningStrategy; |
| } |
| else { |
| return this.joinTableJoiningStrategy; |
| } |
| } |
| |
| @Override |
| public Iterator<String> javaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) { |
| Iterator<String> result = super.javaCompletionProposals(pos, filter, astRoot); |
| if (result == null) { |
| result = this.joinColumnJoiningStrategy.javaCompletionProposals(pos, filter, astRoot); |
| } |
| return result; |
| } |
| |
| |
| // **************** mapped by ********************************************** |
| |
| @Override |
| public void setMappedByJoiningStrategy() { |
| super.setMappedByJoiningStrategy(); |
| this.joinColumnJoiningStrategy.removeStrategy(); |
| } |
| |
| @Override |
| public boolean mayBeMappedBy(AttributeMapping mappedByMapping) { |
| return super.mayBeMappedBy(mappedByMapping) || |
| mappedByMapping.getKey() == MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY; |
| } |
| |
| |
| // **************** join table ********************************************* |
| |
| @Override |
| public void setJoinTableJoiningStrategy() { |
| super.setJoinTableJoiningStrategy(); |
| this.joinColumnJoiningStrategy.removeStrategy(); |
| } |
| |
| @Override |
| public boolean mayHaveDefaultJoinTable() { |
| return super.mayHaveDefaultJoinTable() |
| && ! this.joinColumnJoiningStrategy.hasSpecifiedJoinColumns(); |
| } |
| |
| |
| // **************** join columns ******************************************* |
| |
| public JavaJoinColumnJoiningStrategy getJoinColumnJoiningStrategy() { |
| return this.joinColumnJoiningStrategy; |
| } |
| |
| public boolean usesJoinColumnJoiningStrategy() { |
| return getPredominantJoiningStrategy() == this.joinColumnJoiningStrategy; |
| } |
| |
| public void setJoinColumnJoiningStrategy() { |
| this.joinColumnJoiningStrategy.addStrategy(); |
| this.mappedByJoiningStrategy.removeStrategy(); |
| this.joinTableJoiningStrategy.removeStrategy(); |
| } |
| |
| public void unsetJoinColumnJoiningStrategy() { |
| this.joinColumnJoiningStrategy.removeStrategy(); |
| } |
| |
| public boolean mayHaveDefaultJoinColumn() { |
| return this.mappedByJoiningStrategy.getMappedByAttribute() == null |
| && this.joinTableJoiningStrategy.getJoinTable() == null; |
| } |
| |
| |
| |
| // **************** resource => context ************************************ |
| |
| @Override |
| protected void initializeJoiningStrategies() { |
| this.joinColumnJoiningStrategy.initialize(); |
| super.initializeJoiningStrategies(); |
| } |
| |
| @Override |
| protected void updateJoiningStrategies() { |
| this.joinColumnJoiningStrategy.update(); |
| super.updateJoiningStrategies(); |
| } |
| |
| |
| // **************** Validation ********************************************* |
| |
| @Override |
| public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) { |
| super.validate(messages, reporter, astRoot); |
| this.joinColumnJoiningStrategy.validate(messages, reporter, astRoot); |
| } |
| } |