| /******************************************************************************* |
| * Copyright (c) 2009, 2010 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.RelationshipMapping; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumnJoiningStrategy; |
| import org.eclipse.jpt.core.context.java.JavaJoinTableJoiningStrategy; |
| import org.eclipse.jpt.core.context.java.JavaManyToOneMapping; |
| import org.eclipse.jpt.core.jpa2.context.java.JavaManyToOneRelationshipReference2_0; |
| 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 abstract class AbstractJavaManyToOneRelationshipReference |
| extends AbstractJavaRelationshipReference |
| implements JavaManyToOneRelationshipReference2_0 |
| { |
| protected final JavaJoinColumnJoiningStrategy joinColumnJoiningStrategy; |
| |
| protected final JavaJoinTableJoiningStrategy joinTableJoiningStrategy; |
| |
| |
| protected AbstractJavaManyToOneRelationshipReference(JavaManyToOneMapping parent) { |
| super(parent); |
| this.joinColumnJoiningStrategy = buildJoinColumnJoiningStrategy(); |
| this.joinTableJoiningStrategy = buildJoinTableJoiningStrategy(); |
| } |
| |
| |
| protected JavaJoinColumnJoiningStrategy buildJoinColumnJoiningStrategy() { |
| return new GenericJavaJoinColumnJoiningStrategy(this); |
| } |
| |
| protected abstract JavaJoinTableJoiningStrategy buildJoinTableJoiningStrategy(); |
| |
| @Override |
| public JavaManyToOneMapping getRelationshipMapping() { |
| return (JavaManyToOneMapping) getParent(); |
| } |
| |
| public boolean isRelationshipOwner() { |
| return true; |
| } |
| |
| public boolean isOwnedBy(RelationshipMapping mapping) { |
| return false; |
| } |
| |
| @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); |
| } |
| if (result == null) { |
| result = this.joinTableJoiningStrategy.javaCompletionProposals(pos, filter, astRoot); |
| } |
| return result; |
| } |
| |
| |
| // **************** join columns ******************************************* |
| |
| public JavaJoinColumnJoiningStrategy getJoinColumnJoiningStrategy() { |
| return this.joinColumnJoiningStrategy; |
| } |
| |
| public boolean usesJoinColumnJoiningStrategy() { |
| return getPredominantJoiningStrategy() == this.joinColumnJoiningStrategy; |
| } |
| |
| public void setJoinColumnJoiningStrategy() { |
| // join columns are default (and only, so far) strategy, so no need |
| // to add to resource model |
| this.joinTableJoiningStrategy.removeStrategy(); |
| setPredominantJoiningStrategy(); |
| } |
| |
| public void unsetJoinColumnJoiningStrategy() { |
| this.joinColumnJoiningStrategy.removeStrategy(); |
| setPredominantJoiningStrategy(); |
| } |
| |
| public boolean mayHaveDefaultJoinColumn() { |
| return this.getJoinTableJoiningStrategy().getJoinTable() == null; |
| } |
| |
| |
| // **************** join table ********************************************* |
| |
| public JavaJoinTableJoiningStrategy getJoinTableJoiningStrategy() { |
| return this.joinTableJoiningStrategy; |
| } |
| |
| public boolean usesJoinTableJoiningStrategy() { |
| return getPredominantJoiningStrategy() == this.joinTableJoiningStrategy; |
| } |
| |
| public final void setJoinTableJoiningStrategy() { |
| this.joinTableJoiningStrategy.addStrategy(); |
| this.joinColumnJoiningStrategy.removeStrategy(); |
| setPredominantJoiningStrategy(); |
| } |
| |
| public final void unsetJoinTableJoiningStrategy() { |
| unsetJoinTableJoiningStrategy_(); |
| setPredominantJoiningStrategy(); |
| } |
| |
| protected void unsetJoinTableJoiningStrategy_() { |
| this.joinTableJoiningStrategy.removeStrategy(); |
| } |
| |
| public boolean mayHaveDefaultJoinTable() { |
| return false; |
| } |
| |
| // **************** resource => context ************************************ |
| |
| @Override |
| protected void initializeJoiningStrategies() { |
| this.joinTableJoiningStrategy.initialize(); |
| // initialize join column strategy last, as the existence of a default |
| // join column is dependent on the other mechanisms (join table) not |
| // being specified |
| this.joinColumnJoiningStrategy.initialize(); |
| } |
| |
| @Override |
| protected void updateJoiningStrategies() { |
| this.joinTableJoiningStrategy.update(); |
| // update join column strategy last, as the existence of a default join |
| // column is dependent on the other mechanisms (join table) not being |
| // specified |
| this.joinColumnJoiningStrategy.update(); |
| } |
| |
| |
| // **************** Validation ********************************************* |
| |
| @Override |
| public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) { |
| super.validate(messages, reporter, astRoot); |
| this.joinColumnJoiningStrategy.validate(messages, reporter, astRoot); |
| this.joinTableJoiningStrategy.validate(messages, reporter, astRoot); |
| } |
| } |