Ifpack_OverlapFactorObject.h

/*@HEADER
// ***********************************************************************
// 
//       Ifpack: Object-Oriented Algebraic Preconditioner Package
//                 Copyright (2002) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//  
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
// 
// ***********************************************************************
//@HEADER
*/

#ifndef IFPACK_OVERLAPFACTOROBJECT_H
#define IFPACK_OVERLAPFACTOROBJECT_H


class Ifpack_OverlapFactorObject {

 public:


  Ifpack_OverlapFactorObject(const Ifpack_OverlapGraph * OverlapGraph);


  Ifpack_OverlapFactorObject(const Epetra_RowMatrix * UserMatrix);
  
  Ifpack_OverlapFactorObject(const Ifpack_OverlapFactorObject & Source);

  virtual ~Ifpack_OverlapFactorObject();



  virtual int InitValues(const Epetra_RowMatrix * UserMatrix);


  virtual int Factor();



  bool Allocated() const {return(Allocated_);};

  bool ValuesInitialized() const {return(ValuesInitialized_);};

  bool Factored() const {return(Factored_);};
 
 protected:



  virtual int ProcessOverlapMatrix(const Epetra_RowMatrix &A)=0;


  virtual int DerivedFactor()=0;

  void SetAllocated(bool Flag) {Allocated_ = Flag;};
  void SetFactored(bool Flag) {Factored_ = Flag;};
  void SetValuesInitialized(bool Flag) {ValuesInitialized_ = Flag;};

  bool Factored_;
  bool Allocated_;
  bool ValuesInitialized_;
  Ifpack_OverlapGraph * OverlapGraph_;
  Epetra_RowMatrix * UserMatrix_;
};
#endif // IFPACK_OVERLAPFACTOROBJECT_H