/*
 * 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.sshd.common.future;

import org.apache.sshd.common.util.SshdEventListener;

/**
 * Something interested in being notified when the completion of an asynchronous SSH operation : {@link SshFuture}.
 *
 * @param  <T> type of future
 * @author     <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
 */
@SuppressWarnings("rawtypes")
@FunctionalInterface
public interface SshFutureListener<T extends SshFuture> extends SshdEventListener {

    /**
     * Invoked when the operation associated with the {@link SshFuture} has been completed even if you add the listener
     * after the completion.
     *
     * @param future The source {@link SshFuture} which called this callback.
     */
    void operationComplete(T future);
}
