| /******************************************************************************* |
| * Copyright (c) 2006, 2008 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 org.eclipse.jpt.core.MappingKeys; |
| import org.eclipse.jpt.core.context.Entity; |
| import org.eclipse.jpt.core.context.FetchType; |
| import org.eclipse.jpt.core.context.Fetchable; |
| import org.eclipse.jpt.core.context.PersistentType; |
| import org.eclipse.jpt.core.context.RelationshipMapping; |
| import org.eclipse.jpt.core.context.java.JavaPersistentAttribute; |
| import org.eclipse.jpt.core.context.java.JavaRelationshipMapping; |
| import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute; |
| import org.eclipse.jpt.core.resource.java.RelationshipMappingAnnotation; |
| import org.eclipse.jpt.utility.Filter; |
| import org.eclipse.jpt.utility.internal.StringTools; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyIterator; |
| import org.eclipse.jpt.utility.internal.iterators.FilteringIterator; |
| |
| public abstract class AbstractJavaRelationshipMapping<T extends RelationshipMappingAnnotation> extends AbstractJavaAttributeMapping<T> |
| implements JavaRelationshipMapping |
| { |
| |
| protected String specifiedTargetEntity; |
| |
| protected String defaultTargetEntity; |
| |
| protected Entity resolvedTargetEntity; |
| |
| protected final JavaCascade cascade; |
| |
| protected FetchType specifiedFetch; |
| |
| protected AbstractJavaRelationshipMapping(JavaPersistentAttribute parent) { |
| super(parent); |
| this.cascade = new JavaCascade(this); |
| } |
| |
| public String getTargetEntity() { |
| return (this.getSpecifiedTargetEntity() == null) ? getDefaultTargetEntity() : this.getSpecifiedTargetEntity(); |
| } |
| |
| public String getSpecifiedTargetEntity() { |
| return this.specifiedTargetEntity; |
| } |
| |
| public void setSpecifiedTargetEntity(String newSpecifiedTargetEntity) { |
| String oldSpecifiedTargetEntity = this.specifiedTargetEntity; |
| this.specifiedTargetEntity = newSpecifiedTargetEntity; |
| this.getMappingResource().setTargetEntity(newSpecifiedTargetEntity); |
| firePropertyChanged(RelationshipMapping.SPECIFIED_TARGET_ENTITY_PROPERTY, oldSpecifiedTargetEntity, newSpecifiedTargetEntity); |
| } |
| |
| protected void setSpecifiedTargetEntity_(String newSpecifiedTargetEntity) { |
| String oldSpecifiedTargetEntity = this.specifiedTargetEntity; |
| this.specifiedTargetEntity = newSpecifiedTargetEntity; |
| firePropertyChanged(RelationshipMapping.SPECIFIED_TARGET_ENTITY_PROPERTY, oldSpecifiedTargetEntity, newSpecifiedTargetEntity); |
| } |
| |
| public String getDefaultTargetEntity() { |
| return this.defaultTargetEntity; |
| } |
| |
| protected void setDefaultTargetEntity(String newDefaultTargetEntity) { |
| String oldDefaultTargetEntity = this.defaultTargetEntity; |
| this.defaultTargetEntity = newDefaultTargetEntity; |
| firePropertyChanged(RelationshipMapping.DEFAULT_TARGET_ENTITY_PROPERTY, oldDefaultTargetEntity, newDefaultTargetEntity); |
| } |
| |
| public Entity getResolvedTargetEntity() { |
| return this.resolvedTargetEntity; |
| } |
| |
| protected void setResolvedTargetEntity(Entity newResolvedTargetEntity) { |
| Entity oldResolvedTargetEntity = this.resolvedTargetEntity; |
| this.resolvedTargetEntity = newResolvedTargetEntity; |
| firePropertyChanged(RelationshipMapping.RESOLVED_TARGET_ENTITY_PROPERTY, oldResolvedTargetEntity, newResolvedTargetEntity); |
| } |
| |
| public JavaCascade getCascade() { |
| return this.cascade; |
| } |
| |
| public FetchType getFetch() { |
| return (this.getSpecifiedFetch() == null) ? this.getDefaultFetch() : this.getSpecifiedFetch(); |
| } |
| |
| public FetchType getSpecifiedFetch() { |
| return this.specifiedFetch; |
| } |
| |
| public void setSpecifiedFetch(FetchType newSpecifiedFetch) { |
| FetchType oldFetch = this.specifiedFetch; |
| this.specifiedFetch = newSpecifiedFetch; |
| this.getMappingResource().setFetch(FetchType.toJavaResourceModel(newSpecifiedFetch)); |
| firePropertyChanged(Fetchable.SPECIFIED_FETCH_PROPERTY, oldFetch, newSpecifiedFetch); |
| } |
| |
| protected void setSpecifiedFetch_(FetchType newSpecifiedFetch) { |
| FetchType oldFetch = this.specifiedFetch; |
| this.specifiedFetch = newSpecifiedFetch; |
| firePropertyChanged(Fetchable.SPECIFIED_FETCH_PROPERTY, oldFetch, newSpecifiedFetch); |
| } |
| |
| @Override |
| public void initializeFromResource(JavaResourcePersistentAttribute resourcePersistentAttribute) { |
| this.defaultTargetEntity = this.defaultTargetEntity(resourcePersistentAttribute); |
| super.initializeFromResource(resourcePersistentAttribute); |
| } |
| |
| @Override |
| public void update(JavaResourcePersistentAttribute resourcePersistentAttribute) { |
| this.setDefaultTargetEntity(this.defaultTargetEntity(resourcePersistentAttribute)); |
| super.update(resourcePersistentAttribute); |
| } |
| |
| @Override |
| protected void initialize(T relationshipMapping) { |
| this.specifiedFetch = this.fetch(relationshipMapping); |
| this.cascade.initialize(relationshipMapping); |
| this.specifiedTargetEntity = this.specifiedTargetEntity(relationshipMapping); |
| this.resolvedTargetEntity = this.resolveTargetEntity(relationshipMapping); |
| } |
| |
| @Override |
| protected void update(T relationshipMapping) { |
| super.update(relationshipMapping); |
| this.setSpecifiedFetch_(this.fetch(relationshipMapping)); |
| this.cascade.update(relationshipMapping); |
| this.setSpecifiedTargetEntity_(this.specifiedTargetEntity(relationshipMapping)); |
| this.setResolvedTargetEntity(this.resolveTargetEntity(relationshipMapping)); |
| } |
| |
| protected FetchType fetch(T relationshipMapping) { |
| return FetchType.fromJavaResourceModel(relationshipMapping.getFetch()); |
| } |
| |
| protected String specifiedTargetEntity(T relationshipMapping) { |
| return relationshipMapping.getTargetEntity(); |
| } |
| |
| protected abstract String defaultTargetEntity(JavaResourcePersistentAttribute resourcePersistentAttribute); |
| |
| protected Entity resolveTargetEntity(T relationshipMapping) { |
| String qualifiedTargetEntity = getDefaultTargetEntity(); |
| if (getSpecifiedTargetEntity() != null) { |
| qualifiedTargetEntity = relationshipMapping.getFullyQualifiedTargetEntity(); |
| } |
| if (qualifiedTargetEntity == null) { |
| return null; |
| } |
| PersistentType persistentType = getPersistenceUnit().getPersistentType(qualifiedTargetEntity); |
| if (persistentType != null && persistentType.getMappingKey() == MappingKeys.ENTITY_TYPE_MAPPING_KEY) { |
| return (Entity) persistentType.getMapping(); |
| } |
| return null; |
| } |
| |
| public Entity getEntity() { |
| if (getTypeMapping() instanceof Entity) { |
| return (Entity) getTypeMapping(); |
| } |
| return null; |
| } |
| |
| public Iterator<String> allTargetEntityAttributeNames() { |
| Entity targetEntity = this.getResolvedTargetEntity(); |
| return (targetEntity == null) ? EmptyIterator.<String> instance() : targetEntity.getPersistentType().allAttributeNames(); |
| } |
| |
| public Iterator<String> candidateMappedByAttributeNames() { |
| return this.allTargetEntityAttributeNames(); |
| } |
| |
| protected Iterator<String> candidateMappedByAttributeNames(Filter<String> filter) { |
| return new FilteringIterator<String, String>(this.candidateMappedByAttributeNames(), filter); |
| } |
| |
| protected Iterator<String> quotedCandidateMappedByAttributeNames(Filter<String> filter) { |
| return StringTools.quote(this.candidateMappedByAttributeNames(filter)); |
| } |
| |
| } |