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/*=========================================================================
Program: ParaView
Module: vtkSession.h
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkSession
*
* vtkSession defines a session i.e. a conversation, if you will. It can be
* between different processes or same process. What types of conversations are
* possible i.e what protocols are supported, is defined by the subclasses.
*/
#ifndef vtkSession_h
#define vtkSession_h
#include "vtkObject.h"
#include "vtkPVClientServerCoreCoreModule.h" //needed for exports
class VTKPVCLIENTSERVERCORECORE_EXPORT vtkSession : public vtkObject
{
public:
vtkTypeMacro(vtkSession, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
/**
* Returns true is this session is active/alive/valid.
*/
virtual bool GetIsAlive() = 0;
protected:
vtkSession();
~vtkSession();
// Needed when TileDisplay are retreived
friend class vtkSMRenderViewProxy;
// Need to manually active the session
friend class vtkPVServerSideAnimationPlayerObserver;
/**
* Subclasses must call this to mark the session active. This sets the active
* session pointer held by the vtkProcessModule, making it easier for filters
* etc. that need information about the active session to access it.
*/
virtual void Activate();
/**
* Subclasses must call this to mark the session inactive. This sets the active
* session pointer held by the vtkProcessModule, making it easier for filters
* etc. that need information about the active session to access it.
*/
virtual void DeActivate();
private:
vtkSession(const vtkSession&) VTK_DELETE_FUNCTION;
void operator=(const vtkSession&) VTK_DELETE_FUNCTION;
};
#endif
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