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//               Epetra: Linear Algebra Services Package
//                 Copyright 2011 Sandia Corporation
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#ifndef EPETRA_SRCDISTOBJECT_H
#define EPETRA_SRCDISTOBJECT_H

#include "Epetra_ConfigDefs.h"

class Epetra_BlockMap;


//! Epetra_SrcDistObject: A class for supporting flexible source distributed objects for import/export operations.

/*! The Epetra_SrcDistObject is a base class for all Epetra distributed global objects that are potential
    source objects for the general Epetra_DistObject class.  It provides a way to send a very general distributed
    object as the potential source object for an import or export object.  For example, it is possible to pass
    an Epetra_RowMatrix object as the source object for an import/export where the target is an Epetra_CrsMatrix, or
    an Epetra_CrsGraph (where the RowMatrix values will be ignored).

*/

//==========================================================================
class EPETRA_LIB_DLL_EXPORT Epetra_SrcDistObject {

  public:
    //! @name Destructor
  //@{
  //! Epetra_SrcDistObject destructor.
  virtual ~Epetra_SrcDistObject() {};
  //@}


  //! @name Attribute accessor methods
  //@{
  //! Returns a reference to the Epetra_BlockMap for this object.
  virtual const Epetra_BlockMap & Map() const = 0;
};

#endif /* EPETRA_SRCDISTOBJECT_H */
