TsqrFactory.hpp

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//                 Anasazi: Block Eigensolvers Package
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#ifndef __TSQR_Trilinos_TsqrFactory_hpp
#define __TSQR_Trilinos_TsqrFactory_hpp


#include "Teuchos_Comm.hpp"
#include "Teuchos_ParameterList.hpp"
#include "Teuchos_RCP.hpp"
#include "Tsqr_MessengerBase.hpp"
#include "Tsqr.hpp"


namespace TSQR {
  namespace Trilinos {

    template< class LO, class S, class NodeTsqrType, class DistTsqrType >
    class TsqrFactory {
    public:
      typedef NodeTsqrType                       node_tsqr_type;
      typedef Teuchos::RCP< node_tsqr_type >     node_tsqr_ptr;

      typedef Teuchos::RCP< MessengerBase< S > > scalar_messenger_ptr;
      typedef DistTsqrType                       dist_tsqr_type;
      typedef Teuchos::RCP< dist_tsqr_type >     dist_tsqr_ptr;

      typedef Tsqr< LO, S, node_tsqr_type, dist_tsqr_type > tsqr_type;
      typedef Teuchos::RCP< tsqr_type >                     tsqr_ptr;

      virtual void
      makeTsqr (const Teuchos::ParameterList& plist,
    const scalar_messenger_ptr& messenger,
    tsqr_ptr& tsqr) const
      {
  node_tsqr_ptr nodeTsqr = makeNodeTsqr (plist);
  dist_tsqr_ptr distTsqr = makeDistTsqr (messenger, plist);
  tsqr = Teuchos::rcp (new tsqr_type (nodeTsqr, distTsqr));
      }

      TsqrFactory () {}
      virtual ~TsqrFactory () {};

    private:
      virtual node_tsqr_ptr
      makeNodeTsqr (const Teuchos::ParameterList& plist) const = 0;

      virtual dist_tsqr_ptr
      makeDistTsqr (const scalar_messenger_ptr& messenger,
        const Teuchos::ParameterList& plist) const = 0;
    };
  } // namespace Trilinos
} // namespace TSQR

#endif // __TSQR_Trilinos_TsqrFactory_hpp