Thyra_PreconditionerBase.hpp

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//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 Copyright (2004) Sandia Corporation
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#ifndef THYRA_PRECONDITIONER_BASE_HPP
#define THYRA_PRECONDITIONER_BASE_HPP

#include "Thyra_SolveSupportTypes.hpp"
#include "Teuchos_Describable.hpp"

namespace Thyra {

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


  virtual bool isLeftPrecOpConst() const = 0;

  virtual Teuchos::RefCountPtr<LinearOpBase<DomainScalar,RangeScalar> > getNonconstLeftPrecOp() = 0;

  virtual Teuchos::RefCountPtr<const LinearOpBase<DomainScalar,RangeScalar> > getLeftPrecOp()const = 0;

  virtual bool isRightPrecOpConst() const = 0;

  virtual Teuchos::RefCountPtr<LinearOpBase<DomainScalar,RangeScalar> > getNonconstRightPrecOp() = 0;

  virtual Teuchos::RefCountPtr<const LinearOpBase<DomainScalar,RangeScalar> > getRightPrecOp() const = 0;

  virtual bool isUnspecifiedPrecOpConst() const = 0;

  virtual Teuchos::RefCountPtr<LinearOpBase<DomainScalar,RangeScalar> > getNonconstUnspecifiedPrecOp() = 0;

  virtual Teuchos::RefCountPtr<const LinearOpBase<DomainScalar,RangeScalar> > getUnspecifiedPrecOp() const = 0;
  

};

} // namespace Thyra

#endif // THYRA_PRECONDITIONER_BASE_HPP

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