/*
 *  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.
 */
/**
 * @author Rustem V. Rafikov
 * @version $Revision: 1.3 $
 */
package javax.imageio.spi;

/**
 * The RegisterableService interface provides service provider 
 * objects that can be registered by a ServiceRegistry, and 
 * notifications that registration and deregistration have been
 * performed.
 */
public interface RegisterableService {
    
    /**
     * This method is called when the object which implements this
     * interface is registered to the specified category of the 
     * specified registry.
     * 
     * @param registry the ServiceRegistry to be registered.
     * @param category the class representing a category.
     */
    void onRegistration(ServiceRegistry registry, Class<?> category);
    
    /**
     * This method is called when the object which implements this
     * interface is deregistered to the specified category of the 
     * specified registry.
     * 
     * @param registry the ServiceRegistry to be registered.
     * @param category the class representing a category.
     */
    void onDeregistration(ServiceRegistry registry, Class<?> category);
}