| /******************************************************************************* |
| * Copyright (c) 2009, 2015 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License 2.0, which accompanies this distribution |
| * and is available at https://www.eclipse.org/legal/epl-2.0/. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.jpa.core.internal.context.java; |
| |
| import java.util.List; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.jpt.jpa.core.MappingKeys; |
| import org.eclipse.jpt.jpa.core.context.AttributeMapping; |
| import org.eclipse.jpt.jpa.core.context.RelationshipMapping; |
| import org.eclipse.jpt.jpa.core.context.SpecifiedMappedByRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.context.SpecifiedRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.context.java.JavaOneToManyMapping; |
| import org.eclipse.jpt.jpa.core.context.java.JavaSpecifiedJoinColumnRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.context.java.JavaSpecifiedJoinTableRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.internal.jpa1.context.java.GenericJavaMappingJoinTableRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.internal.jpa1.context.java.NullJavaJoinColumnRelationshipStrategy; |
| import org.eclipse.jpt.jpa.core.jpa2.context.java.JavaOneToManyRelationship2_0; |
| import org.eclipse.jpt.jpa.core.resource.java.OneToManyAnnotation; |
| import org.eclipse.wst.validation.internal.provisional.core.IMessage; |
| import org.eclipse.wst.validation.internal.provisional.core.IReporter; |
| |
| public class GenericJavaOneToManyRelationship |
| extends AbstractJavaMappingRelationship<JavaOneToManyMapping> |
| implements JavaOneToManyRelationship2_0 |
| { |
| protected final SpecifiedMappedByRelationshipStrategy mappedByStrategy; |
| |
| protected final JavaSpecifiedJoinTableRelationshipStrategy joinTableStrategy; |
| |
| // JPA 2.0 or EclipseLink |
| protected final boolean supportsJoinColumnStrategy; |
| protected final JavaSpecifiedJoinColumnRelationshipStrategy joinColumnStrategy; |
| |
| |
| public GenericJavaOneToManyRelationship(JavaOneToManyMapping parent, boolean supportsJoinColumnStrategy) { |
| super(parent); |
| this.mappedByStrategy = this.buildMappedByStrategy(); |
| this.supportsJoinColumnStrategy = supportsJoinColumnStrategy; |
| this.joinColumnStrategy = this.buildJoinColumnStrategy(); |
| |
| // build join table strategy last since it's dependent on the other strategies |
| this.joinTableStrategy = this.buildJoinTableStrategy(); |
| |
| this.strategy = this.buildStrategy(); |
| } |
| |
| |
| // ********** synchronize/update ********** |
| |
| @Override |
| public void synchronizeWithResourceModel(IProgressMonitor monitor) { |
| super.synchronizeWithResourceModel(monitor); |
| this.mappedByStrategy.synchronizeWithResourceModel(monitor); |
| this.joinColumnStrategy.synchronizeWithResourceModel(monitor); |
| this.joinTableStrategy.synchronizeWithResourceModel(monitor); |
| } |
| |
| @Override |
| public void update(IProgressMonitor monitor) { |
| super.update(monitor); |
| this.mappedByStrategy.update(monitor); |
| this.joinColumnStrategy.update(monitor); |
| this.joinTableStrategy.update(monitor); |
| } |
| |
| |
| // ********** strategy ********** |
| |
| @Override |
| protected SpecifiedRelationshipStrategy buildStrategy() { |
| if (this.mappedByStrategy.getMappedByAttribute() != null) { |
| return this.mappedByStrategy; |
| } |
| if (this.supportsJoinColumnStrategy) { |
| if (this.joinColumnStrategy.hasSpecifiedJoinColumns()) { |
| return this.joinColumnStrategy; |
| } |
| } |
| return this.joinTableStrategy; |
| } |
| |
| |
| // ********** mapped by strategy ********** |
| |
| public SpecifiedMappedByRelationshipStrategy getMappedByStrategy() { |
| return this.mappedByStrategy; |
| } |
| |
| public boolean strategyIsMappedBy() { |
| return this.strategy == this.mappedByStrategy; |
| } |
| |
| public final void setStrategyToMappedBy() { |
| this.mappedByStrategy.addStrategy(); |
| this.joinTableStrategy.removeStrategy(); |
| this.joinColumnStrategy.removeStrategy(); |
| this.updateStrategy(); |
| } |
| |
| public boolean mayBeMappedBy(AttributeMapping mapping) { |
| String key = mapping.getKey(); |
| if (key == MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY) { |
| return true; |
| } |
| if (this.supportsJoinColumnStrategy) { |
| return key == MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY; |
| } |
| return false; |
| } |
| |
| protected SpecifiedMappedByRelationshipStrategy buildMappedByStrategy() { |
| return new GenericJavaMappedByRelationshipStrategy(this); |
| } |
| |
| |
| // ********** join table strategy ********** |
| |
| public JavaSpecifiedJoinTableRelationshipStrategy getJoinTableStrategy() { |
| return this.joinTableStrategy; |
| } |
| |
| public boolean strategyIsJoinTable() { |
| return this.strategy == this.joinTableStrategy; |
| } |
| |
| public final void setStrategyToJoinTable() { |
| // join table is default, so no need to add annotation |
| this.mappedByStrategy.removeStrategy(); |
| this.joinColumnStrategy.removeStrategy(); |
| this.updateStrategy(); |
| } |
| |
| public boolean mayHaveDefaultJoinTable() { |
| return (this.mappedByStrategy.getMappedByAttribute() == null) && |
| ! this.joinColumnStrategy.hasSpecifiedJoinColumns(); |
| } |
| |
| protected JavaSpecifiedJoinTableRelationshipStrategy buildJoinTableStrategy() { |
| return new GenericJavaMappingJoinTableRelationshipStrategy(this); |
| } |
| |
| |
| // ********** join column strategy ********** |
| |
| public JavaSpecifiedJoinColumnRelationshipStrategy getJoinColumnStrategy() { |
| return this.joinColumnStrategy; |
| } |
| |
| public boolean strategyIsJoinColumn() { |
| return this.strategy == this.joinColumnStrategy; |
| } |
| |
| public void setStrategyToJoinColumn() { |
| this.joinColumnStrategy.addStrategy(); |
| this.mappedByStrategy.removeStrategy(); |
| this.joinTableStrategy.removeStrategy(); |
| this.updateStrategy(); |
| } |
| |
| public boolean mayHaveDefaultJoinColumn() { |
| return false; |
| } |
| |
| protected JavaSpecifiedJoinColumnRelationshipStrategy buildJoinColumnStrategy() { |
| return this.supportsJoinColumnStrategy ? |
| new GenericJavaMappingJoinColumnRelationshipStrategy(this, true) : // true = target foreign key |
| new NullJavaJoinColumnRelationshipStrategy(this); |
| } |
| |
| |
| // ********** misc ********** |
| |
| public OneToManyAnnotation getMappingAnnotation() { |
| return this.getMapping().getMappingAnnotation(); |
| } |
| |
| public OneToManyAnnotation getMappingAnnotationForUpdate() { |
| return this.getMapping().getAnnotationForUpdate(); |
| } |
| |
| public boolean isOwner() { |
| return this.mappedByStrategy.getMappedByAttribute() == null; |
| } |
| |
| public boolean isOwnedBy(RelationshipMapping mapping) { |
| return this.mappedByStrategy.relationshipIsOwnedBy(mapping); |
| } |
| |
| @Override |
| public boolean isTargetForeignKey() { |
| return this.joinColumnStrategy.isTargetForeignKey(); |
| } |
| |
| |
| // ********** Java completion proposals ********** |
| |
| @Override |
| public Iterable<String> getCompletionProposals(int pos) { |
| Iterable<String> result = super.getCompletionProposals(pos); |
| if (result != null) { |
| return result; |
| } |
| |
| result = this.mappedByStrategy.getCompletionProposals(pos); |
| if (result != null) { |
| return result; |
| } |
| |
| result = this.joinTableStrategy.getCompletionProposals(pos); |
| if (result != null) { |
| return result; |
| } |
| |
| return this.joinColumnStrategy.getCompletionProposals(pos); |
| } |
| |
| |
| // ********** validation ********** |
| |
| @Override |
| public void validate(List<IMessage> messages, IReporter reporter) { |
| super.validate(messages, reporter); |
| this.mappedByStrategy.validate(messages, reporter); |
| this.joinTableStrategy.validate(messages, reporter); |
| this.joinColumnStrategy.validate(messages, reporter); |
| } |
| } |