| /******************************************************************************* |
| * 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.resource.orm; |
| |
| import java.util.ListIterator; |
| import org.eclipse.emf.common.util.BasicEList; |
| import org.eclipse.emf.common.util.EList; |
| import org.eclipse.jpt.core.internal.context.java.IJavaJoinColumn; |
| import org.eclipse.jpt.core.internal.context.java.IJavaManyToOneMapping; |
| import org.eclipse.jpt.core.internal.resource.common.JpaEObject; |
| import org.eclipse.jpt.core.internal.resource.orm.FetchType; |
| |
| /** |
| * 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 JpaEObject implements ManyToOne |
| { |
| IJavaManyToOneMapping javaManyToOneMapping; |
| |
| protected boolean metadataComplete; |
| |
| // protected VirtualJoinTable virtualJoinTable; |
| |
| protected final VirtualCascadeType virtualCascadeType; |
| |
| protected EList<JoinColumn> virtualJoinColumns; |
| |
| public VirtualManyToOne(IJavaManyToOneMapping javaManyToOneMapping, boolean metadataComplete) { |
| super(); |
| this.javaManyToOneMapping = javaManyToOneMapping; |
| this.metadataComplete = metadataComplete; |
| this.initializeJoinColumns(javaManyToOneMapping); |
| this.virtualCascadeType = new VirtualCascadeType(javaManyToOneMapping.getCascade(), this.metadataComplete); |
| } |
| |
| protected void initializeJoinColumns(IJavaManyToOneMapping javaManyToOneMapping) { |
| this.virtualJoinColumns = new BasicEList<JoinColumn>(); |
| ListIterator<IJavaJoinColumn> javaJoinColumns; |
| if (this.metadataComplete) { |
| javaJoinColumns = this.javaManyToOneMapping.defaultJoinColumns(); |
| } |
| 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.internal.context.base.FetchType.toOrmResourceModel(this.javaManyToOneMapping.getDefaultFetch()); |
| } |
| return org.eclipse.jpt.core.internal.context.base.FetchType.toOrmResourceModel(this.javaManyToOneMapping.getFetch()); |
| } |
| |
| public void setFetch(org.eclipse.jpt.core.internal.resource.orm.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<JoinColumn> 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 JoinTable getJoinTable() { |
| //TODO we don't yet support JoinTable in the context model for many-to-one mappings |
| return null;//this.virtualJoinTable; |
| } |
| |
| public void setJoinTable(JoinTable 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(IJavaManyToOneMapping javaManyToOneMapping) { |
| this.javaManyToOneMapping = javaManyToOneMapping; |
| this.virtualCascadeType.update(javaManyToOneMapping.getCascade()); |
| this.updateJoinColumns(javaManyToOneMapping); |
| } |
| |
| protected void updateJoinColumns(IJavaManyToOneMapping javaManyToOneMapping) { |
| ListIterator<IJavaJoinColumn> javaJoinColumns; |
| ListIterator<JoinColumn> virtualJoinColumns = this.virtualJoinColumns.listIterator(); |
| if (this.metadataComplete) { |
| javaJoinColumns = this.javaManyToOneMapping.defaultJoinColumns(); |
| } |
| else { |
| javaJoinColumns = this.javaManyToOneMapping.joinColumns(); |
| } |
| |
| while (javaJoinColumns.hasNext()) { |
| IJavaJoinColumn 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()); |
| } |
| } |
| } |