EpetraExt_Transpose_RowMatrix.h

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#ifndef EpetraExt_CRSMATRIX_TRANSPOSE_H
#define EpetraExt_CRSMATRIX_TRANSPOSE_H

#include <EpetraExt_Transform.h>

class Epetra_RowMatrix;
class Epetra_CrsMatrix;
class Epetra_Map;
class Epetra_Export;

namespace EpetraExt {

class RowMatrix_Transpose : public SameTypeTransform<Epetra_RowMatrix>
{

 public:

  ~RowMatrix_Transpose();


  RowMatrix_Transpose( Epetra_Map * TransposeRowMap = 0,
           bool IgnoreNonLocalCols = false)
  : TransposeMatrix_(0),
    TransposeRowMap_(TransposeRowMap),
    IgnoreNonLocalCols_(IgnoreNonLocalCols),
    NumMyRows_(0),
    NumMyCols_(0),
    MaxNumEntries_(0),
    Indices_(0),
    Values_(0),
    OrigMatrixIsCrsMatrix_(false)
  {}

  NewTypeRef operator()( OriginalTypeRef orig );

  bool fwd();

  bool rvs();

  void ReleaseTranspose() {TransposeMatrix_=0;}


  Epetra_CrsMatrix * CreateTransposeLocal( OriginalTypeRef orig );

 private:
  Epetra_CrsMatrix * TransposeMatrix_;

  Epetra_Map * TransposeRowMap_;

  bool MakeDataContiguous_;
  bool IgnoreNonLocalCols_;

  int NumMyRows_;
  int NumMyCols_;
  int MaxNumEntries_;
  int * Indices_;
  double * Values_;

  bool OrigMatrixIsCrsMatrix_;

};

} //namespace EpetraExt

#endif //EpetraExt_ROWMATRIX_TRANSPOSE_H