| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.camel.spi; |
| |
| import java.util.Map; |
| |
| /** |
| * Represents a service registry which may be implemented via a Spring ApplicationContext, |
| * via JNDI, a simple Map or the OSGi Service Registry |
| * |
| * @version |
| */ |
| public interface Registry { |
| |
| /** |
| * Looks up a service in the registry based purely on name, |
| * returning the service or <tt>null</tt> if it could not be found. |
| * |
| * @param name the name of the service |
| * @return the service from the registry or <tt>null</tt> if it could not be found |
| */ |
| Object lookup(String name); |
| |
| /** |
| * Looks up a service in the registry, returning the service or <tt>null</tt> if it could not be found. |
| * |
| * @param name the name of the service |
| * @param type the type of the required service |
| * @return the service from the registry or <tt>null</tt> if it could not be found |
| */ |
| <T> T lookup(String name, Class<T> type); |
| |
| /** |
| * Looks up services in the registry by their type. |
| * <p/> |
| * <b>Note:</b> Not all registry implementations support this feature, |
| * such as the {@link org.apache.camel.impl.JndiRegistry}. |
| * |
| * @param type the type of the registered services |
| * @return the types found, with their id as the key. Returns an empty Map if none found. |
| */ |
| <T> Map<String, T> lookupByType(Class<T> type); |
| |
| } |