Thyra_PreconditionerFactoryHelpers.hpp

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

#include "Thyra_PreconditionerFactoryBase.hpp"
#include "Thyra_DefaultLinearOpSource.hpp"
#include "Thyra_DefaultPreconditioner.hpp"

namespace Thyra {

template <class Scalar>
void initializePrec(
  const PreconditionerFactoryBase<Scalar>                    &precFactory
  ,const Teuchos::RefCountPtr<const LinearOpBase<Scalar> >   &fwdOp
  ,PreconditionerBase<Scalar>                                *precOp
  ,const ESupportSolveUse                                    supportSolveUse = SUPPORT_SOLVE_UNSPECIFIED
  )
{
  precFactory.initializePrec(defaultLinearOpSource(fwdOp),precOp,supportSolveUse);
}

template <class Scalar>
void uninitializePrec(
  const PreconditionerFactoryBase<Scalar>               &precFactory
  ,PreconditionerBase<Scalar>                           *prec
  ,Teuchos::RefCountPtr<const LinearOpBase<Scalar> >    *fwdOp           = NULL
  ,ESupportSolveUse                                     *supportSolveUse = NULL
  )
{
  Teuchos::RefCountPtr<const LinearOpSourceBase<Scalar> > fwdOpSrc;
  precFactory.uninitializePrec(prec,&fwdOpSrc,supportSolveUse);
  if(fwdOp) *fwdOp = fwdOpSrc->getOp();
}

} // namespace Thyra

#endif // THYRA_PRECONDITIONER_FACTORY_HELPERS_DECL_HPP

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