Thyra_XpetraLinearOp_decl.hpp

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#ifndef THYRA_XPETRA_LINEAR_OP_DECL_HPP
#define THYRA_XPETRA_LINEAR_OP_DECL_HPP

#include "Thyra_LinearOpDefaultBase.hpp"
#include "Xpetra_Operator.hpp"
#include "Teuchos_ConstNonconstObjectContainer.hpp"


namespace Thyra {


template <class Scalar, class LocalOrdinal, class GlobalOrdinal=LocalOrdinal,
  class Node=KokkosClassic::DefaultNode::DefaultNodeType>
class XpetraLinearOp
  : virtual public Thyra::LinearOpDefaultBase<Scalar>
{
public:


  XpetraLinearOp();

  void initialize(
    const RCP<const VectorSpaceBase<Scalar> > &rangeSpace,
    const RCP<const VectorSpaceBase<Scalar> > &domainSpace,
    const RCP<Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &xpetraOperator
    );

  void constInitialize(
    const RCP<const VectorSpaceBase<Scalar> > &rangeSpace,
    const RCP<const VectorSpaceBase<Scalar> > &domainSpace,
    const RCP<const Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &xpetraOperator
    );

  RCP<Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
  getXpetraOperator();

  RCP<const Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
  getConstXpetraOperator() const;



  RCP<const Thyra::VectorSpaceBase<Scalar> > range() const;

  RCP<const Thyra::VectorSpaceBase<Scalar> > domain() const;


protected:


  bool opSupportedImpl(Thyra::EOpTransp M_trans) const;

  void applyImpl(
    const Thyra::EOpTransp M_trans,
    const Thyra::MultiVectorBase<Scalar> &X_in,
    const Teuchos::Ptr<Thyra::MultiVectorBase<Scalar> > &Y_inout,
    const Scalar alpha,
    const Scalar beta
    ) const;


private:

  RCP<const VectorSpaceBase<Scalar> >
  rangeSpace_;

  RCP<const VectorSpaceBase<Scalar> >
  domainSpace_;

  Teuchos::ConstNonconstObjectContainer<Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> >
  xpetraOperator_;

  template<class XpetraOperator_t>
  void initializeImpl(
    const RCP<const VectorSpaceBase<Scalar> > &rangeSpace,
    const RCP<const VectorSpaceBase<Scalar> > &domainSpace,
    const RCP<XpetraOperator_t> &xpetraOperator
  );

};


template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node> >
xpetraLinearOp(
  const RCP<const VectorSpaceBase<Scalar> > &rangeSpace,
  const RCP<const VectorSpaceBase<Scalar> > &domainSpace,
  const RCP<Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &xpetraOperator
  )
{
  const RCP<XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node> > op =
    Teuchos::rcp(new XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node>);
  op->initialize(rangeSpace, domainSpace, xpetraOperator);
  return op;
}


template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
RCP<const XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node> >
constXpetraLinearOp(
  const RCP<const VectorSpaceBase<Scalar> > &rangeSpace,
  const RCP<const VectorSpaceBase<Scalar> > &domainSpace,
  const RCP<const Xpetra::Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node> > &xpetraOperator
  )
{
  const RCP<XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node> > op =
    Teuchos::rcp(new XpetraLinearOp<Scalar, LocalOrdinal, GlobalOrdinal, Node>);
  op->constInitialize(rangeSpace, domainSpace, xpetraOperator);
  return op;
}

}  // namespace Thyra

#endif // THYRA_XPETRA_LINEAR_OP_DECL_HPP