001    // Copyright 2006 The Apache Software Foundation
002    //
003    // Licensed under the Apache License, Version 2.0 (the "License");
004    // you may not use this file except in compliance with the License.
005    // You may obtain a copy of the License at
006    //
007    //     http://www.apache.org/licenses/LICENSE-2.0
008    //
009    // Unless required by applicable law or agreed to in writing, software
010    // distributed under the License is distributed on an "AS IS" BASIS,
011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012    // See the License for the specific language governing permissions and
013    // limitations under the License.
014    
015    package org.apache.tapestry5.ioc.services;
016    
017    import java.util.EventListener;
018    
019    /**
020     * Event listener interfaces for objects that need to know when the Registry shutsdown.
021     *
022     * @see RegistryShutdownHub#addRegistryShutdownListener(Runnable)
023     * @deprecated In Tapestry 5.3, to be removed in a later release.
024     */
025    public interface RegistryShutdownListener extends EventListener
026    {
027        /**
028         * Invoked when the registry shuts down, giving services a chance to perform any final operations. Service
029         * implementations should not attempt to invoke methods on other services (via proxies) as the service proxies may
030         * themselves be shutdown.
031         */
032        void registryDidShutdown();
033    }