Thyra_DefaultPreconditionerDecl.hpp

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//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
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#ifndef THYRA_DEFUALT_PRECONDITIONER_DECL_HPP
#define THYRA_DEFUALT_PRECONDITIONER_DECL_HPP

#include "Thyra_PreconditionerBase.hpp"
#include "Teuchos_ConstNonconstObjectContainer.hpp"

namespace Thyra {

template <class RangeScalar, class DomainScalar = RangeScalar>
class DefaultPreconditioner : virtual public PreconditionerBase<RangeScalar,DomainScalar>
{
public:


  DefaultPreconditioner();

  DefaultPreconditioner(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    ,const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >   &rightPrecOp
    );

  DefaultPreconditioner(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    ,const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >   &rightPrecOp
    );

  DefaultPreconditioner(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &unspecifiedPrecOp
    );

  DefaultPreconditioner(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &unspecifiedPrecOp
    );

  void initializeLeft(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    );

  void initializeLeft(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    );

  void initializeRight(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &rightPrecOp
    );

  void initializeRight(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &rightPrecOp
    );

  void initializeLeftRight(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    ,const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >   &rightPrecOp
    );

  void initializeLeftRight(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &leftPrecOp
    ,const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >   &rightPrecOp
    );

  void initializeUnspecified(
    const Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> >    &unspecifiedPrecOp
    );

  void initializeUnspecified(
    const Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> >    &unspecifiedPrecOp
    );

  void uninitialize();


  // ToDo: Override functions from Describable!

  bool isLeftPrecOpConst() const;
  Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> > getNonconstLeftPrecOp();
  Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> > getLeftPrecOp() const;
  bool isRightPrecOpConst() const;
  Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> > getNonconstRightPrecOp();
  Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> > getRightPrecOp() const;
  bool isUnspecifiedPrecOpConst() const;
  Teuchos::RefCountPtr<LinearOpBase<RangeScalar,DomainScalar> > getNonconstUnspecifiedPrecOp();
  Teuchos::RefCountPtr<const LinearOpBase<RangeScalar,DomainScalar> > getUnspecifiedPrecOp() const;
  
private:
  
  Teuchos::ConstNonconstObjectContainer<LinearOpBase<RangeScalar,DomainScalar> >  leftPrecOp_;
  Teuchos::ConstNonconstObjectContainer<LinearOpBase<RangeScalar,DomainScalar> >  rightPrecOp_;
  Teuchos::ConstNonconstObjectContainer<LinearOpBase<RangeScalar,DomainScalar> >  unspecifiedPrecOp_;
  
};

// ///////////////////////
// Related functions

template <class Scalar>
Teuchos::RefCountPtr<const DefaultPreconditioner<Scalar> >
unspecifiedPrec(
  const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >    &unspecifiedPrecOp
  )
{
  return Teuchos::rcp(new DefaultPreconditioner<Scalar>(unspecifiedPrecOp));
}

template <class Scalar>
Teuchos::RefCountPtr<const DefaultPreconditioner<Scalar> >
leftPrec(
  const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >    &leftPrecOp
  )
{
  return Teuchos::rcp(new DefaultPreconditioner<Scalar>(leftPrecOp,Teuchos::null));
}

template <class Scalar>
Teuchos::RefCountPtr<const DefaultPreconditioner<Scalar> >
rightPrec(
  const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >    &rightPrecOp
  )
{
  return Teuchos::rcp(new DefaultPreconditioner<Scalar>(Teuchos::null,rightPrecOp));
}

template <class Scalar>
Teuchos::RefCountPtr<const DefaultPreconditioner<Scalar> >
splitPrec(
  const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >     &leftPrecOp
  ,const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >    &rightPrecOp
  )
{
  return Teuchos::rcp(new DefaultPreconditioner<Scalar>(leftPrecOp,rightPrecOp));
}

} // namespace Thyra

#endif // THYRA_DEFUALT_PRECONDITIONER_DECL_HPP

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