001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.runtime.api;
023
024/**
025 * A service provider.
026 * <p>
027 * A service provider is used by the framework to be able to change the way local services are found.
028 * <p>
029 * For example you may want to use a simple service provider for testing pourpose to avoid loading the nuxeo runtime
030 * framework to register services.
031 * <p>
032 * To set a service provider use: {@link DefaultServiceProvider#setProvider(ServiceProvider)}
033 *
034 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
035 */
036public interface ServiceProvider {
037
038    /**
039     * Gets the service instance given its API class.
040     */
041    <T> T getService(Class<T> serviceClass);
042
043}