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// **********************************************************************
//
// Copyright (c) 2002
// ZeroC, Inc.
// Billerica, MA, USA
//
// All Rights Reserved.
//
// Ice is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License version 2 as published by
// the Free Software Foundation.
//
// **********************************************************************
package IceInternal;
abstract class EventHandler
{
//
// Return true if read() must be called before calling message().
//
abstract public boolean readable();
//
// Read data via the event handler. May only be called if
// readable() returns true.
//
abstract public void read(BasicStream is);
//
// A complete message has been received.
//
abstract public void message(BasicStream stream, ThreadPool threadPool);
//
// Will be called if the event handler is finally
// unregistered. (Calling unregister() does not unregister
// immediately.)
//
abstract public void finished(ThreadPool threadPool);
//
// Propagate an exception to the event handler.
//
abstract public void exception(Ice.LocalException ex);
//
// Get a textual representation of the event handler.
//
abstract public String toString();
protected
EventHandler(Instance instance)
{
_instance = instance;
_stream = new BasicStream(instance);
}
protected void
finalize()
throws Throwable
{
_stream.destroy();
}
protected Instance _instance;
//
// The _stream data member is for use by ThreadPool only.
//
BasicStream _stream;
}
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