| // TimeProviderAdapterFactory.java |
| package org.eclipse.stem.adapters.time; |
| |
| /******************************************************************************* |
| * Copyright (c) 2008 IBM Corporation and others. |
| * 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| 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.IDisposable; |
| |
| /** |
| * This interface is implemented by classes that create adapters that adapt |
| * {@link org.eclipse.emf.ecore.EObject}s to {@link TimeProvider}s. |
| */ |
| public interface TimeProviderAdapterFactory extends ComposeableAdapterFactory, |
| IChangeNotifier, IDisposable { |
| |
| /** |
| * This is the singleton instance of the factory that creates {@link |
| * TimeProvider} instances. |
| * <p> |
| * This instance is a {@link ComposedAdapterFactory} which means that it |
| * collects together other {@link ComposeableAdapterFactory} adapter |
| * factories. Each class that implements {@link |
| * RelativeValueProviderAdapterFactory} needs to add itself to this instance |
| * with a call to {@link |
| * ComposedAdapterFactory#addAdapterFactory(org.eclipse |
| * .emf.common.notify.AdapterFactory)}. This will then allow adapters |
| * created by that factory to be found when adapting class instances handled |
| * by the new factory. |
| * <p> |
| * Basically, if you create an EMF model and define a {@link |
| * TimeProviderAdapterFactory} for it so that the classes in that model can |
| * be adapted, you need to hook that factory into this one so that later |
| * when an attempt is made to adapt a class from that model is made the |
| * associated factory will be found. You can do that by adding the line: |
| * <code> |
| * TimeProviderAdapterFactory.INSTANCE.addAdapterFactory(this); |
| * </code> to the default constructor of the new factory after the |
| * super call. You're not done however, you also have to "force" an instance |
| * of the class to be created so that the constructor is run. This is |
| * typically achieved by allocating an instance in the <code>start</code> |
| * method of the <code>Activator</code> of the plug-in that defines the |
| * factory. |
| */ |
| TimeProviderAdapterFactoryImpl INSTANCE = new TimeProviderAdapterFactoryImpl(); |
| |
| /** |
| * This class is extended by classes that provide time values of {@link |
| * Identifiables}. |
| */ |
| public class TimeProviderAdapterFactoryImpl extends ComposedAdapterFactory |
| implements TimeProviderAdapterFactory { |
| /** |
| * @see org.eclipse.emf.edit.provider.ComposedAdapterFactory# |
| * isFactoryForType(java.lang.Object) |
| */ |
| @Override |
| public boolean isFactoryForType(Object type) { |
| return type == TimeProvider.class; |
| } // isFactoryForType |
| } // TimeProviderAdapterFactoryImpl |
| } // TimeProviderAdapterFactory |
