Teko_InverseFactory.hpp

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

// Teuchos includes
#include "Teuchos_RCP.hpp"

// Thyra includes
#include "Thyra_LinearOpWithSolveFactoryBase.hpp"
#include "Thyra_PreconditionerFactoryBase.hpp"

#include "Teko_Config.h"
#include "Teko_Utilities.hpp"
#include "Teko_PreconditionerState.hpp"
#include "Teko_RequestHandler.hpp"
#include "Teko_RequestHandlerContainer.hpp"

namespace Teko {

class InverseFactory : public RequestHandlerContainer {
public:
   virtual ~InverseFactory() {}

   virtual InverseLinearOp buildInverse(const LinearOp & linearOp) const = 0;

   virtual InverseLinearOp buildInverse(const LinearOp & linearOp,const LinearOp & /* precOp */) const
   { return buildInverse(linearOp); }

   #if 0

   virtual InverseLinearOp buildInverse(const LinearOp & linearOp, const PreconditionerState & parentState) const
   { return buildInverse(linearOp); }

   virtual InverseLinearOp buildInverse(const LinearOp & linearOp, const LinearOp & precOp, const PreconditionerState & parentState) const
   { return buildInverse(linearOp,precOp); }
   #endif

   virtual void rebuildInverse(const LinearOp & source,InverseLinearOp & dest) const = 0;

   virtual void rebuildInverse(const LinearOp & source,const LinearOp & /* precOp */,InverseLinearOp & dest) const
   { rebuildInverse(source,dest); }

   virtual Teuchos::RCP<const Teuchos::ParameterList> getParameterList() const = 0;

   virtual std::string toString() const = 0;

   virtual Teuchos::RCP<Teuchos::ParameterList> getRequestedParameters() const
   { return Teuchos::null; }

   virtual bool updateRequestedParameters(const Teuchos::ParameterList & /* pl */)
   { return true; }

   void setRequestHandler(const Teuchos::RCP<RequestHandler> & rh)
   { callbackHandler_ = rh; }

   Teuchos::RCP<RequestHandler> getRequestHandler() const
   { return callbackHandler_; }

protected:
   Teuchos::RCP<RequestHandler> callbackHandler_;
};

class StaticOpInverseFactory : public InverseFactory {
public:


   StaticOpInverseFactory(const LinearOp inv)
      : inverse_(inv) {}

   StaticOpInverseFactory(const StaticOpInverseFactory & saFactory)
      : inverse_(saFactory.inverse_) {}

   virtual ~StaticOpInverseFactory() {}

   using InverseFactory::buildInverse;
   using InverseFactory::rebuildInverse;

   virtual InverseLinearOp buildInverse(const LinearOp & /* linearOp */) const
   { return Teuchos::rcp_const_cast<Thyra::LinearOpBase<double> >(this->inverse_); }

   virtual void rebuildInverse(const LinearOp & /* source */,InverseLinearOp & /* dest */) const
   { }

   virtual Teuchos::RCP<const Teuchos::ParameterList> getParameterList() const
   { return Teuchos::null; }

   virtual std::string toString() const { return inverse_->description(); }

protected:
   Teko::LinearOp inverse_;

private:
   // hide me!
   StaticOpInverseFactory();
};



InverseLinearOp buildInverse(const InverseFactory & factory,const LinearOp & A);

InverseLinearOp buildInverse(const InverseFactory & factory,const LinearOp & A,const LinearOp & precOp);

void rebuildInverse(const InverseFactory & factory, const LinearOp & A, InverseLinearOp & invA);

void rebuildInverse(const InverseFactory & factory, const LinearOp & A,const LinearOp & precOp, InverseLinearOp & invA);

Teuchos::RCP<InverseFactory> invFactoryFromParamList(const Teuchos::ParameterList & list,const std::string & type);

Teuchos::RCP<const Teuchos::ParameterList> invFactoryValidParameters();


} // end namespace Teko

#endif