| /******************************************************************************* |
| * 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.orm; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.eclipse.jpt.core.MappingKeys; |
| import org.eclipse.jpt.core.context.AttributeMapping; |
| import org.eclipse.jpt.core.context.Entity; |
| import org.eclipse.jpt.core.context.FetchType; |
| import org.eclipse.jpt.core.context.PersistentType; |
| import org.eclipse.jpt.core.context.RelationshipMapping; |
| import org.eclipse.jpt.core.context.orm.OrmPersistentAttribute; |
| import org.eclipse.jpt.core.context.orm.OrmRelationshipMapping; |
| import org.eclipse.jpt.core.internal.context.MappingTools; |
| import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages; |
| import org.eclipse.jpt.core.internal.validation.JpaValidationMessages; |
| import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute; |
| import org.eclipse.jpt.core.resource.orm.XmlAttributeMapping; |
| import org.eclipse.jpt.core.resource.orm.XmlRelationshipMapping; |
| import org.eclipse.jpt.core.utility.TextRange; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyIterator; |
| import org.eclipse.wst.validation.internal.provisional.core.IMessage; |
| |
| |
| public abstract class AbstractOrmRelationshipMapping<T extends XmlRelationshipMapping> |
| extends AbstractOrmAttributeMapping<T> |
| implements OrmRelationshipMapping |
| { |
| |
| protected String specifiedTargetEntity; |
| protected String defaultTargetEntity; |
| protected Entity resolvedTargetEntity; |
| |
| protected final OrmCascade cascade; |
| |
| protected FetchType specifiedFetch; |
| |
| |
| protected AbstractOrmRelationshipMapping(OrmPersistentAttribute parent) { |
| super(parent); |
| this.cascade = new OrmCascade(this); |
| } |
| |
| @Override |
| public OrmPersistentAttribute getParent() { |
| return (OrmPersistentAttribute) super.getParent(); |
| } |
| |
| // ********** target entity ********** |
| |
| public String getTargetEntity() { |
| return (this.specifiedTargetEntity != null) ? this.specifiedTargetEntity : this.defaultTargetEntity; |
| } |
| |
| public String getSpecifiedTargetEntity() { |
| return this.specifiedTargetEntity; |
| } |
| |
| public void setSpecifiedTargetEntity(String targetEntity) { |
| String old = this.specifiedTargetEntity; |
| this.specifiedTargetEntity = targetEntity; |
| this.resourceAttributeMapping.setTargetEntity(targetEntity); |
| this.firePropertyChanged(SPECIFIED_TARGET_ENTITY_PROPERTY, old, targetEntity); |
| } |
| |
| protected void setSpecifiedTargetEntity_(String targetEntity) { |
| String old = this.specifiedTargetEntity; |
| this.specifiedTargetEntity = targetEntity; |
| this.firePropertyChanged(SPECIFIED_TARGET_ENTITY_PROPERTY, old, targetEntity); |
| } |
| |
| public String getDefaultTargetEntity() { |
| return this.defaultTargetEntity; |
| } |
| |
| protected void setDefaultTargetEntity(String targetEntity) { |
| String old = this.defaultTargetEntity; |
| this.defaultTargetEntity = targetEntity; |
| this.firePropertyChanged(DEFAULT_TARGET_ENTITY_PROPERTY, old, targetEntity); |
| } |
| |
| public Entity getResolvedTargetEntity() { |
| return this.resolvedTargetEntity; |
| } |
| |
| protected void setResolvedTargetEntity(Entity targetEntity) { |
| Entity old = this.resolvedTargetEntity; |
| this.resolvedTargetEntity = targetEntity; |
| this.firePropertyChanged(RESOLVED_TARGET_ENTITY_PROPERTY, old, targetEntity); |
| } |
| |
| |
| // ********** cascade ********** |
| |
| public OrmCascade getCascade() { |
| return this.cascade; |
| } |
| |
| |
| // ********** fetch ********** |
| |
| public FetchType getFetch() { |
| return (this.specifiedFetch != null) ? this.specifiedFetch : this.getDefaultFetch(); |
| } |
| |
| public FetchType getSpecifiedFetch() { |
| return this.specifiedFetch; |
| } |
| |
| public void setSpecifiedFetch(FetchType fetch) { |
| FetchType old = this.specifiedFetch; |
| this.specifiedFetch = fetch; |
| this.resourceAttributeMapping.setFetch(FetchType.toOrmResourceModel(fetch)); |
| this.firePropertyChanged(SPECIFIED_FETCH_PROPERTY, old, fetch); |
| } |
| |
| protected void setSpecifiedFetch_(FetchType fetch) { |
| FetchType old = this.specifiedFetch; |
| this.specifiedFetch = fetch; |
| this.firePropertyChanged(SPECIFIED_FETCH_PROPERTY, old, fetch); |
| } |
| |
| |
| // ********** resource => context ********** |
| |
| @Override |
| public void initialize(XmlAttributeMapping relationshipMapping) { |
| super.initialize(relationshipMapping); |
| this.specifiedTargetEntity = this.resourceAttributeMapping.getTargetEntity(); |
| this.defaultTargetEntity = this.buildDefaultTargetEntity(); |
| this.resolvedTargetEntity = this.buildResolvedTargetEntity(); |
| this.specifiedFetch = this.buildSpecifiedFetch(); |
| this.cascade.initialize(this.resourceAttributeMapping); |
| } |
| |
| @Override |
| public void update() { |
| super.update(); |
| this.setSpecifiedTargetEntity_(this.resourceAttributeMapping.getTargetEntity()); |
| this.setDefaultTargetEntity(this.buildDefaultTargetEntity()); |
| this.setResolvedTargetEntity(this.buildResolvedTargetEntity()); |
| this.setSpecifiedFetch_(this.buildSpecifiedFetch()); |
| this.cascade.update(); |
| } |
| |
| protected FetchType buildSpecifiedFetch() { |
| return FetchType.fromOrmResourceModel(this.resourceAttributeMapping.getFetch()); |
| } |
| |
| protected String buildDefaultTargetEntity() { |
| RelationshipMapping javaMapping = getJavaRelationshipMapping(); |
| if (javaMapping != null) { |
| if (getPersistentAttribute().isVirtual() && !getTypeMapping().isMetadataComplete()) { |
| return javaMapping.getTargetEntity(); |
| } |
| } |
| if (findJavaPersistentAttribute() != null) { |
| return defaultTargetEntity(findJavaPersistentAttribute().getResourcePersistentAttribute()); |
| } |
| return null; |
| } |
| |
| protected RelationshipMapping getJavaRelationshipMapping() { |
| if (findJavaPersistentAttribute() == null) { |
| return null; |
| } |
| AttributeMapping javaAttributeMapping = findJavaPersistentAttribute().getMapping(); |
| if (javaAttributeMapping instanceof RelationshipMapping) { |
| return ((RelationshipMapping) javaAttributeMapping); |
| } |
| return null; |
| } |
| |
| protected abstract String defaultTargetEntity(JavaResourcePersistentAttribute persistentAttributeResource); |
| |
| protected Entity buildResolvedTargetEntity() { |
| if (getTargetEntity() == null) { |
| return null; |
| } |
| PersistentType persistentType = getTargetPersistentType(); |
| if (persistentType != null && persistentType.getMappingKey() == MappingKeys.ENTITY_TYPE_MAPPING_KEY) { |
| return (Entity) persistentType.getMapping(); |
| } |
| return null; |
| } |
| |
| protected PersistentType getTargetPersistentType() { |
| // try to resolve by only the locally specified name |
| PersistentType persistentType = getPersistenceUnit().getPersistentType(getTargetEntity()); |
| if (persistentType == null) { |
| // try to resolve by prepending the global package name |
| String packageName = |
| getPersistentAttribute().getPersistentType().getContext().getDefaultPersistentTypePackage(); |
| persistentType = getPersistenceUnit().getPersistentType(packageName + '.' + getTargetEntity()); |
| } |
| return persistentType; |
| } |
| |
| |
| // ********** RelationshipMapping implementation ********** |
| |
| public Entity getEntity() { |
| if (getTypeMapping() instanceof Entity) { |
| return (Entity) getTypeMapping(); |
| } |
| return null; |
| } |
| |
| public String getJoinTableDefaultName() { |
| return MappingTools.buildJoinTableDefaultName(this); |
| } |
| |
| @Override |
| public void initializeFromOrmRelationshipMapping(OrmRelationshipMapping oldMapping) { |
| super.initializeFromOrmRelationshipMapping(oldMapping); |
| setSpecifiedTargetEntity(oldMapping.getSpecifiedTargetEntity()); |
| setSpecifiedFetch(oldMapping.getSpecifiedFetch()); |
| getCascade().initializeFrom(oldMapping.getCascade()); |
| //TODO should we set the fetch type from a BasicMapping?? |
| } |
| |
| public Iterator<String> allTargetEntityAttributeNames() { |
| Entity targetEntity = this.getResolvedTargetEntity(); |
| return (targetEntity == null) ? EmptyIterator.<String> instance() : targetEntity.getPersistentType().allAttributeNames(); |
| } |
| |
| public Iterator<String> candidateMappedByAttributeNames() { |
| return this.allTargetEntityAttributeNames(); |
| } |
| |
| @Override |
| public void validate(List<IMessage> messages) { |
| super.validate(messages); |
| validateTargetEntity(messages); |
| } |
| |
| protected void validateTargetEntity(List<IMessage> messages) { |
| if (getTargetEntity() == null) { |
| if (getPersistentAttribute().isVirtual()) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.VIRTUAL_ATTRIBUTE_TARGET_ENTITY_NOT_DEFINED, |
| new String[] {this.getAttributeName()}, |
| this, |
| this.getValidationTextRange() |
| ) |
| ); |
| } |
| else { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.TARGET_ENTITY_NOT_DEFINED, |
| new String[] {this.getAttributeName()}, |
| this, |
| this.getValidationTextRange() |
| ) |
| ); |
| } |
| } |
| else if (getResolvedTargetEntity() == null) { |
| if (getPersistentAttribute().isVirtual()) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.VIRTUAL_ATTRIBUTE_TARGET_ENTITY_IS_NOT_AN_ENTITY, |
| new String[] {this.getAttributeName(), getTargetEntity()}, |
| this, |
| this.getValidationTextRange() |
| ) |
| ); |
| } |
| else { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.TARGET_ENTITY_IS_NOT_AN_ENTITY, |
| new String[] {getTargetEntity(), this.getAttributeName()}, |
| this, |
| this.getTargetEntityTextRange() |
| ) |
| ); |
| } |
| } |
| } |
| |
| protected TextRange getTextRange(TextRange textRange) { |
| return (textRange != null) ? textRange : this.getParent().getValidationTextRange(); |
| } |
| |
| protected TextRange getTargetEntityTextRange() { |
| return this.getTextRange(this.getResourceAttributeMapping().getTargetEntityTextRange()); |
| } |
| } |