| /******************************************************************************* |
| * Copyright (c) 2006, 2007 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.ui.internal.xml.structure; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import org.eclipse.emf.common.notify.Adapter; |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.Notifier; |
| import org.eclipse.emf.edit.provider.ChangeNotifier; |
| import org.eclipse.emf.edit.provider.ComposeableAdapterFactory; |
| import org.eclipse.emf.edit.provider.ComposedAdapterFactory; |
| import org.eclipse.emf.edit.provider.IChangeNotifier; |
| import org.eclipse.emf.edit.provider.IEditingDomainItemProvider; |
| import org.eclipse.emf.edit.provider.IItemLabelProvider; |
| import org.eclipse.emf.edit.provider.INotifyChangedListener; |
| import org.eclipse.emf.edit.provider.IStructuredItemContentProvider; |
| import org.eclipse.emf.edit.provider.ITreeItemContentProvider; |
| import org.eclipse.jpt.core.internal.content.orm.util.OrmAdapterFactory; |
| import org.eclipse.ui.services.IDisposable; |
| |
| /** |
| * This is the factory that is used to provide the interfaces needed to support Viewers. |
| * The adapters generated by this factory convert EMF adapter notifications into calls to {@link #fireNotifyChanged fireNotifyChanged}. |
| * The adapters also support Eclipse property sheets. |
| * Note that most of the adapters are shared among multiple instances. |
| */ |
| public class JpaCoreXmlItemProviderAdapterFactory |
| extends OrmAdapterFactory |
| implements ComposeableAdapterFactory, |
| IChangeNotifier, |
| IDisposable |
| { |
| /** |
| * This keeps track of the root adapter factory that delegates to this adapter factory. |
| */ |
| protected ComposedAdapterFactory parentAdapterFactory; |
| |
| /** |
| * This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}. |
| */ |
| protected IChangeNotifier changeNotifier = new ChangeNotifier(); |
| |
| /** |
| * This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}. |
| */ |
| protected Collection supportedTypes = new ArrayList(); |
| |
| public JpaCoreXmlItemProviderAdapterFactory() { |
| supportedTypes.add(IEditingDomainItemProvider.class); |
| supportedTypes.add(IStructuredItemContentProvider.class); |
| supportedTypes.add(ITreeItemContentProvider.class); |
| supportedTypes.add(IItemLabelProvider.class); |
| } |
| |
| |
| protected XmlRootContentNodeItemProvider xmlRootContentNodeItemProvider; |
| |
| public Adapter createXmlRootContentNodeAdapter() { |
| if (xmlRootContentNodeItemProvider == null) { |
| xmlRootContentNodeItemProvider = new XmlRootContentNodeItemProvider(this); |
| } |
| |
| return xmlRootContentNodeItemProvider; |
| } |
| |
| protected EntityMappingsItemProvider entityMappingsItemProvider; |
| |
| /** |
| * This creates an adapter for a {@link org.eclipse.jpt.core.internal.content.orm.EntityMappingsImpl}. |
| */ |
| public Adapter createEntityMappingsAdapter() { |
| if (entityMappingsItemProvider == null) { |
| entityMappingsItemProvider = new EntityMappingsItemProvider(this); |
| } |
| |
| return entityMappingsItemProvider; |
| } |
| |
| /** |
| * This keeps track of the one adapter used for all {@link org.eclipse.jpt.core.internal.content.orm.XmlPersistentType} instances. |
| */ |
| protected XmlPersistentTypeItemProvider xmlPersistentTypeItemProvider; |
| |
| /** |
| * This creates an adapter for a {@link org.eclipse.jpt.core.internal.content.orm.XmlPersistentType}. |
| */ |
| public Adapter createXmlPersistentTypeAdapter() { |
| if (xmlPersistentTypeItemProvider == null) { |
| xmlPersistentTypeItemProvider = new XmlPersistentTypeItemProvider( |
| this); |
| } |
| |
| return xmlPersistentTypeItemProvider; |
| } |
| |
| /** |
| * This keeps track of the one adapter used for all {@link org.eclipse.jpt.core.internal.content.orm.XmlPersistentAttribute} instances. |
| */ |
| protected XmlPersistentAttributeItemProvider xmlPersistentAttributeItemProvider; |
| |
| /** |
| * This creates an adapter for a {@link org.eclipse.jpt.core.internal.content.orm.XmlPersistentAttribute}. |
| */ |
| public Adapter createXmlPersistentAttributeAdapter() { |
| if (xmlPersistentAttributeItemProvider == null) { |
| xmlPersistentAttributeItemProvider = new XmlPersistentAttributeItemProvider( |
| this); |
| } |
| |
| return xmlPersistentAttributeItemProvider; |
| } |
| |
| /** |
| * This returns the root adapter factory that contains this factory. |
| */ |
| public ComposeableAdapterFactory getRootAdapterFactory() { |
| return parentAdapterFactory == null ? this : parentAdapterFactory |
| .getRootAdapterFactory(); |
| } |
| |
| /** |
| * This sets the composed adapter factory that contains this factory. |
| */ |
| public void setParentAdapterFactory( |
| ComposedAdapterFactory parentAdapterFactory) { |
| this.parentAdapterFactory = parentAdapterFactory; |
| } |
| |
| public boolean isFactoryForType(Object type) { |
| return supportedTypes.contains(type) || super.isFactoryForType(type); |
| } |
| |
| /** |
| * This implementation substitutes the factory itself as the key for the adapter. |
| */ |
| public Adapter adapt(Notifier notifier, Object type) { |
| return super.adapt(notifier, this); |
| } |
| |
| public Object adapt(Object object, Object type) { |
| if (isFactoryForType(type)) { |
| Object adapter = super.adapt(object, type); |
| if (!(type instanceof Class) |
| || (((Class) type).isInstance(adapter))) { |
| return adapter; |
| } |
| } |
| |
| return null; |
| } |
| |
| /** |
| * This adds a listener. |
| */ |
| public void addListener(INotifyChangedListener notifyChangedListener) { |
| changeNotifier.addListener(notifyChangedListener); |
| } |
| |
| /** |
| * This removes a listener. |
| */ |
| public void removeListener(INotifyChangedListener notifyChangedListener) { |
| changeNotifier.removeListener(notifyChangedListener); |
| } |
| |
| /** |
| * This delegates to {@link #changeNotifier} and to {@link #parentAdapterFactory}. |
| */ |
| public void fireNotifyChanged(Notification notification) { |
| changeNotifier.fireNotifyChanged(notification); |
| |
| if (parentAdapterFactory != null) { |
| parentAdapterFactory.fireNotifyChanged(notification); |
| } |
| } |
| |
| /** |
| * This disposes all of the item providers created by this factory. |
| */ |
| public void dispose() { |
| if (xmlRootContentNodeItemProvider != null) |
| xmlRootContentNodeItemProvider.dispose(); |
| if (entityMappingsItemProvider != null) |
| entityMappingsItemProvider.dispose(); |
| if (xmlPersistentTypeItemProvider != null) |
| xmlPersistentTypeItemProvider.dispose(); |
| if (xmlPersistentAttributeItemProvider != null) |
| xmlPersistentAttributeItemProvider.dispose(); |
| } |
| } |