/*
* 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.catalina.tribes.group;
import java.io.Serializable;
import org.apache.catalina.tribes.Member;
/**
* The RpcCallback interface is an interface for the Tribes channel to request a response object to a request that came
* in.
*/
public interface RpcCallback {
/**
* Allows sending a response to a received message.
*
* @param msg The message
* @param sender Member
*
* @return Serializable object, <code>null</code> if no reply should be sent
*/
Serializable replyRequest(Serializable msg, Member sender);
/**
* If the reply has already been sent to the requesting thread, the rpc callback can handle any data that comes in
* after the fact.
*
* @param msg The message
* @param sender Member
*/
void leftOver(Serializable msg, Member sender);
}