Thyra_DefaultDiagonalLinearOpDecl.hpp

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00003 // 
00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
00005 //                 Copyright (2004) Sandia Corporation
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00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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00028 
00029 #ifndef THYRA_DIAGONAL_LINEAR_OP_DECL_HPP
00030 #define THYRA_DIAGONAL_LINEAR_OP_DECL_HPP
00031 
00032 #include "Thyra_DiagonalLinearOpBase.hpp"
00033 #include "Thyra_SingleRhsLinearOpBaseDecl.hpp"
00034 #include "Teuchos_ConstNonconstObjectContainer.hpp"
00035 
00036 namespace Thyra {
00037 
00067 template<class Scalar>
00068 class DefaultDiagonalLinearOp
00069   : virtual public DiagonalLinearOpBase<Scalar>       // Public interface
00070   , virtual protected SingleRhsLinearOpBase<Scalar>   // Implementation detail
00071 {
00072 public:
00073 
00076 
00083   DefaultDiagonalLinearOp();
00084 
00087   DefaultDiagonalLinearOp(
00088     const Teuchos::RCP<const VectorSpaceBase<Scalar> >  &space
00089     );
00090 
00094   DefaultDiagonalLinearOp(
00095     const Teuchos::RCP<VectorBase<Scalar> >   &diag
00096     );
00097 
00101   DefaultDiagonalLinearOp(
00102     const Teuchos::RCP<const VectorBase<Scalar> >   &diag
00103     );
00104 
00120   void initialize(
00121     const Teuchos::RCP<const VectorSpaceBase<Scalar> >  &space
00122     );
00123 
00139   void initialize(
00140     const Teuchos::RCP<VectorBase<Scalar> >   &diag
00141     );
00142 
00158   void initialize(
00159     const Teuchos::RCP<const VectorBase<Scalar> >   &diag
00160     );
00161 
00176   void uninitialize();
00177 
00179 
00182 
00184   bool isDiagConst() const;
00186   Teuchos::RCP<VectorBase<Scalar> > getNonconstDiag();
00188   Teuchos::RCP<const VectorBase<Scalar> > getDiag() const;
00189 
00191 
00200   Teuchos::RCP< const VectorSpaceBase<Scalar> > range() const;
00207   Teuchos::RCP< const VectorSpaceBase<Scalar> > domain() const;
00209   Teuchos::RCP<const LinearOpBase<Scalar> > clone() const;
00211 
00212 protected:
00213 
00217   bool opSupported(ETransp M_trans) const;
00219 
00223   void apply(
00224     const ETransp                M_trans
00225     ,const VectorBase<Scalar>    &x
00226     ,VectorBase<Scalar>          *y
00227     ,const Scalar                alpha
00228     ,const Scalar                beta
00229     ) const;
00231 
00232 private:
00233 
00234   Teuchos::ConstNonconstObjectContainer<VectorBase<Scalar> > diag_;
00235 
00236 };
00237 
00238 } // end namespace Thyra
00239 
00240 #endif  // THYRA_DIAGONAL_LINEAR_OP_DECL_HPP

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