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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "context.h"
namespace mbus {
/**
* This interface is implemented by application components that require special
* handling when discarding a message with a non-empty callstack.
*/
class IDiscardHandler
{
public:
/**
* Virtual destructor required for inheritance.
*/
virtual ~IDiscardHandler() = default;
/**
* This method is invoked by message bus when a routable is being
* dicarded. This is invoked INSTEAD of the corresponding {@link
* ReplyHandler}.
*
* @param ctx The context of the discarded reply.
*/
virtual void handleDiscard(Context ctx) = 0;
};
} // namespace mbus
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