Teko_Preconditioner.hpp

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//      Teko: A package for block and physics based preconditioning
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#ifndef __Teko_Preconditioner_hpp__
#define __Teko_Preconditioner_hpp__

// Thyra includes
#include "Thyra_DefaultPreconditioner.hpp"

// Teko includes
#include "Teko_Utilities.hpp"
#include "Teko_PreconditionerState.hpp"

namespace Teko {

using Thyra::LinearOpBase;
using Thyra::DefaultPreconditioner;
using Teuchos::RCP;

class Preconditioner : public DefaultPreconditioner<double> {
public:

   Preconditioner()
      : DefaultPreconditioner<double>() {}
   Preconditioner(const RCP<LinearOpBase<double> > & leftPrecOp,
                  const RCP<LinearOpBase<double> > & rightPrecOp)
      : DefaultPreconditioner<double>(leftPrecOp,rightPrecOp) {}
   Preconditioner(const RCP<const LinearOpBase<double> > & leftPrecOp,
                  const RCP<const LinearOpBase<double> > & rightPrecOp)
      : DefaultPreconditioner<double>(leftPrecOp,rightPrecOp) {}
   Preconditioner(const RCP<LinearOpBase<double> > & unspecifiedPrecOp)
      : DefaultPreconditioner<double>(unspecifiedPrecOp) {}
   Preconditioner(const RCP<const LinearOpBase<double> > & unspecifiedPrecOp)
      : DefaultPreconditioner<double>(unspecifiedPrecOp) {}

   virtual void setSourceVector(const RCP<Thyra::MultiVectorBase<double> > & srcVec)
   { if(srcVec!=Teuchos::null) state_->setSourceVector(srcVec);
     else                      state_->setSourceVector(Teuchos::null); }

   virtual void setStateObject(const RCP<PreconditionerState> & state)
   { state_ = state; }

   virtual const RCP<PreconditionerState> getStateObject()
   { return state_; }

   virtual const RCP<const PreconditionerState> getStateObject() const
   { return state_; }

   virtual void mergeStateObject(const PreconditionerState & state)
   { state_->merge(state); }

protected:
   RCP<PreconditionerState> state_;
};

} // end namespace Teko

#endif