| /******************************************************************************* |
| * Copyright (c) 2010, 2018 Willink Transformations and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * E.D.Willink - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ocl.ecore.delegate; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.emf.ecore.EPackage; |
| |
| /** |
| * A pluggable, dynamic implementation of a delegate domain supervising |
| * delegated behavior. |
| * |
| * @since 3.0 |
| */ |
| public interface DelegateDomain { |
| |
| /** |
| * A factory for creating delegate domains. |
| */ |
| interface Factory { |
| /** |
| * The global instance used when no factory is registered. |
| */ |
| Factory INSTANCE = new OCLDelegateDomainFactory(); |
| |
| /** |
| * Creates the delegate domain for the specified <tt>ePackage</tt>. |
| * |
| * @param ePackage |
| * the package |
| * @return its delegate domain |
| */ |
| DelegateDomain createDelegateDomain(String delegateURI, |
| EPackage ePackage); |
| |
| /** |
| * A <code>Factory</code> wrapper that is used by the |
| * {@link Factory.Registry}. |
| */ |
| interface Descriptor { |
| |
| DelegateDomain.Factory getFactory(); |
| } |
| |
| /** |
| * A registry of delegate domain factories. |
| */ |
| interface Registry |
| extends Map<String, Object> { |
| |
| Factory.Registry INSTANCE = new Impl(); |
| |
| DelegateDomain.Factory getFactory(String uri); |
| |
| class Impl |
| extends HashMap<String, Object> |
| implements Factory.Registry { |
| |
| private static final long serialVersionUID = 1L; |
| |
| @Override |
| public Object get(Object key) { |
| Object factory = super.get(key); |
| if (factory instanceof Factory.Descriptor) { |
| Factory.Descriptor factoryDescriptor = (Factory.Descriptor) factory; |
| factory = factoryDescriptor.getFactory(); |
| put((String) key, factory); |
| return factory; |
| } else { |
| return factory; |
| } |
| } |
| |
| public DelegateDomain.Factory getFactory(String uri) { |
| return (DelegateDomain.Factory) get(uri); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Dispose of this delegate domain releasing any resources cached to support |
| * delegated behaviour for the associated package. |
| */ |
| void dispose(); |
| |
| /** |
| * Get the delegate domain name. |
| * |
| * @return the delegate URI |
| */ |
| String getURI(); |
| } |