001/*
002 * Copyright 2022-2026 Revetware LLC.
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
017package com.soklet;
018
019import javax.annotation.concurrent.ThreadSafe;
020
021/**
022 * An independent, removable callback registration.
023 * <p>
024 * Closing this registration is idempotent and does not wait for callback execution.
025 * Removal suppresses invocation only if it wins before the runtime claims the callback;
026 * an already-claimed callback may still run after {@link #close()} returns.
027 * Registering the same callback more than once creates independent registrations.
028 *
029 * @author <a href="https://www.revetkn.com">Mark Allen</a>
030 */
031@ThreadSafe
032public interface CallbackRegistration extends AutoCloseable {
033        /**
034         * Removes this registration without waiting for an already-claimed callback.
035         * This operation does not throw checked exceptions.
036         */
037        @Override
038        void close();
039}