portConnection.h

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/*******************************************************************************
** Copyright (c) 2003 MaK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: portConnection.h,v $ $Revision: 1.8 $ $State: Exp $
*******************************************************************************/



#ifndef DtPortConnection_H_
#define DtPortConnection_H_

#include <vlutil/vlMachineTypes.h>

class DtInputPort;
class DtOutputPort;
class DtPortData;

#include "vrfobjcore/vrfobjcoreDefines.h"
class DT_DLL_vrfobjcore DtPortConnection
{
public:
   DtPortConnection(DtOutputPort* source, DtInputPort* destination,
      int priority);
   virtual ~DtPortConnection();

private:
   DtPortConnection();
   DtPortConnection(const DtPortConnection&);
   DtPortConnection& operator=(const DtPortConnection&);

public:

   virtual bool init();

   virtual bool attemptToActivate();

   virtual bool canActivate() const;

   virtual bool attemptToActivateAtLowestPriority();

   virtual void deactivate();

   virtual void allowDeactivation();

   virtual bool active() const;

   virtual void sendData(DtPortData* data);

   virtual int priority() const;

   virtual void setPriority(int priority);

protected:
   DtOutputPort* myOutputPort;
   DtInputPort* myInputPort;
   int myPriority;
};


#endif