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//
// Copyright 2024 Charles W. Rapp
//
// Licensed 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 net.sf.eBus.client;

import net.sf.eBus.messages.EMessage;

/**
 * This functional interface may be used to deliver generic
 * eBus messages to a target method.
 *
 * @param  delivers this message type.
 *
 * @see ERequestMonitorFeed.Builder#requestCallback(MessageCallback)
 * @see ERequestMonitorFeed.Builder#replyCallback(MessageCallback)
 * @see ERequestMonitorFeed.Builder#cancelCallback(MessageCallback)
 *
 * @author Charles W. Rapp
 */

@FunctionalInterface
public interface MessageCallback
{
//---------------------------------------------------------------
// Member methods.
//

    /**
     * An incoming eBus message.
     * @param message an eBus message.
     * @param replier eBus object name of replier associated with
     * this message.
     */
    void call(M message,
              String replier);
} // end of interface MessageCallback