plugins/org.eclipse.sphinx.emf/src/org/eclipse/sphinx/emf/metamodel/services/IMetaModelServiceProvider.java

/**
 * <copyright>
 *
 * Copyright (c) 2010-2015 BMW Car IT, itemis 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
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
 *
 * Contributors:
 *     BMW Car IT - Initial API and implementation
 *     itemis - Moved from Artop to Sphinx, adapted method and variable naming to Sphinx conventions
 *     itemis - [458921] Newly introduced registries for metamodel serives, check validators and workflow contributors are not standalone-safe
 *
 * </copyright>
 */
package org.eclipse.sphinx.emf.metamodel.services;

import org.eclipse.sphinx.emf.metamodel.IMetaModelDescriptor;
import org.eclipse.sphinx.emf.metamodel.providers.IMetaModelDescriptorProvider;

/**
 * Provider for {@link IMetaModelService}.
 */
public interface IMetaModelServiceProvider {

	/**
	 * Returns an instance of the provided service interface for the provided metamodel.
	 *
	 * @param <T>
	 *            the service type
	 * @param descriptor
	 *            the metamodel descriptor
	 * @param serviceType
	 *            the expected service type
	 * @return an instance of the expected service or null if no service is available
	 */
	<T extends IMetaModelService> T getService(IMetaModelDescriptor descriptor, Class<T> serviceType);

	/**
	 * Returns an instance of the provided service interface for the provided metamodel.
	 *
	 * @param <T>
	 *            the service type
	 * @param provider
	 *            provides the metamodel descriptor
	 * @param serviceType
	 *            the expected service type
	 * @return an instance of the expected service or null if no service is available
	 */
	<T extends IMetaModelService> T getService(IMetaModelDescriptorProvider provider, Class<T> serviceType);

}