| /******************************************************************************* |
| * Copyright (c) 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.ListIterator; |
| import org.eclipse.emf.common.util.BasicEList; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.jpt.core.TextRange; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumn; |
| import org.eclipse.jpt.core.context.java.JavaManyToOneMapping; |
| import org.eclipse.jpt.core.resource.common.AbstractJpaEObject; |
| import org.eclipse.jpt.core.resource.orm.CascadeType; |
| import org.eclipse.jpt.core.resource.orm.FetchType; |
| import org.eclipse.jpt.core.resource.orm.XmlJoinColumn; |
| import org.eclipse.jpt.core.resource.orm.XmlJoinTable; |
| import org.eclipse.jpt.core.resource.orm.XmlManyToOne; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyListIterator; |
| import org.eclipse.jpt.utility.internal.iterators.SingleElementListIterator; |
| |
| /** |
| * VirtualManyToOne is an implementation of ManyToOne used when there is |
| * no tag in the orm.xml and an underlying javaManyToOneMapping exists. |
| */ |
| public class VirtualManyToOne extends AbstractJpaEObject implements XmlManyToOne |
| { |
| JavaManyToOneMapping javaManyToOneMapping; |
| |
| protected boolean metadataComplete; |
| |
| // protected VirtualJoinTable virtualJoinTable; |
| |
| protected final VirtualCascadeType virtualCascadeType; |
| |
| protected EList<XmlJoinColumn> virtualJoinColumns; |
| |
| public VirtualManyToOne(JavaManyToOneMapping javaManyToOneMapping, boolean metadataComplete) { |
| super(); |
| this.javaManyToOneMapping = javaManyToOneMapping; |
| this.metadataComplete = metadataComplete; |
| this.initializeJoinColumns(javaManyToOneMapping); |
| this.virtualCascadeType = new VirtualCascadeType(javaManyToOneMapping.getCascade(), this.metadataComplete); |
| } |
| |
| protected void initializeJoinColumns(JavaManyToOneMapping javaManyToOneMapping) { |
| this.virtualJoinColumns = new BasicEList<XmlJoinColumn>(); |
| ListIterator<JavaJoinColumn> javaJoinColumns; |
| if (this.metadataComplete) { |
| //TODO still need a default join column in xml |
| if (javaManyToOneMapping.getDefaultJoinColumn() == null) { |
| javaJoinColumns = EmptyListIterator.instance(); |
| } |
| else { |
| javaJoinColumns = new SingleElementListIterator<JavaJoinColumn>(javaManyToOneMapping.getDefaultJoinColumn()); |
| } |
| } |
| else { |
| javaJoinColumns = this.javaManyToOneMapping.joinColumns(); |
| } |
| |
| while (javaJoinColumns.hasNext()) { |
| this.virtualJoinColumns.add(new VirtualJoinColumn(javaJoinColumns.next(), this.metadataComplete)); |
| } |
| } |
| |
| public String getName() { |
| return this.javaManyToOneMapping.persistentAttribute().getName(); |
| } |
| |
| public void setName(String newName) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public FetchType getFetch() { |
| if (this.metadataComplete) { |
| return org.eclipse.jpt.core.context.FetchType.toOrmResourceModel(this.javaManyToOneMapping.getDefaultFetch()); |
| } |
| return org.eclipse.jpt.core.context.FetchType.toOrmResourceModel(this.javaManyToOneMapping.getFetch()); |
| } |
| |
| public void setFetch(FetchType newFetch) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public Boolean getOptional() { |
| if (this.metadataComplete) { |
| return this.javaManyToOneMapping.getDefaultOptional(); |
| } |
| return this.javaManyToOneMapping.getOptional(); |
| } |
| |
| public void setOptional(Boolean newOptional) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public EList<XmlJoinColumn> getJoinColumns() { |
| return this.virtualJoinColumns; |
| } |
| |
| public CascadeType getCascade() { |
| return this.virtualCascadeType; |
| } |
| |
| public void setCascade(CascadeType value) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public XmlJoinTable getJoinTable() { |
| //TODO we don't yet support JoinTable in the context model for many-to-one mappings |
| return null;//this.virtualJoinTable; |
| } |
| |
| public void setJoinTable(XmlJoinTable value) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public String getTargetEntity() { |
| if (this.metadataComplete) { |
| return this.javaManyToOneMapping.getDefaultTargetEntity(); |
| } |
| return this.javaManyToOneMapping.getTargetEntity(); |
| } |
| |
| public void setTargetEntity(String value) { |
| throw new UnsupportedOperationException("cannot set values on a virtual mapping"); |
| } |
| |
| public void update(JavaManyToOneMapping javaManyToOneMapping) { |
| this.javaManyToOneMapping = javaManyToOneMapping; |
| this.virtualCascadeType.update(javaManyToOneMapping.getCascade()); |
| this.updateJoinColumns(javaManyToOneMapping); |
| } |
| |
| protected void updateJoinColumns(JavaManyToOneMapping javaManyToOneMapping) { |
| ListIterator<JavaJoinColumn> javaJoinColumns; |
| ListIterator<XmlJoinColumn> virtualJoinColumns = this.virtualJoinColumns.listIterator(); |
| if (this.metadataComplete) { |
| //TODO still need a default join column in xml |
| if (javaManyToOneMapping.getDefaultJoinColumn() == null) { |
| javaJoinColumns = EmptyListIterator.instance(); |
| } |
| else { |
| javaJoinColumns = new SingleElementListIterator<JavaJoinColumn>(javaManyToOneMapping.getDefaultJoinColumn()); |
| } |
| } |
| else { |
| javaJoinColumns = this.javaManyToOneMapping.joinColumns(); |
| } |
| |
| while (javaJoinColumns.hasNext()) { |
| JavaJoinColumn javaJoinColumn = javaJoinColumns.next(); |
| if (virtualJoinColumns.hasNext()) { |
| VirtualJoinColumn virtualJoinColumn = (VirtualJoinColumn) virtualJoinColumns.next(); |
| virtualJoinColumn.update(javaJoinColumn); |
| } |
| else { |
| this.virtualJoinColumns.add(new VirtualJoinColumn(javaJoinColumn, this.metadataComplete)); |
| } |
| } |
| |
| while(virtualJoinColumns.hasNext()) { |
| this.virtualJoinColumns.remove(virtualJoinColumns.next()); |
| } |
| } |
| |
| public TextRange nameTextRange() { |
| return null; |
| } |
| |
| } |