Tpetra_Operator.hpp

// @HEADER
// ***********************************************************************
// 
//          Tpetra: Templated Linear Algebra Services Package
//                 Copyright (2008) Sandia Corporation
// 
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
// 
// ************************************************************************
// @HEADER

#ifndef TPETRA_OPERATOR_HPP
#define TPETRA_OPERATOR_HPP

#include <Kokkos_DefaultNode.hpp>
#include <Teuchos_Describable.hpp>
#include "Tpetra_Map.hpp"
#include "Tpetra_MultiVector.hpp"

namespace Tpetra {


  template<class Scalar, class LocalOrdinal = int, class GlobalOrdinal = LocalOrdinal, class Node = Kokkos::DefaultNode::DefaultNodeType>
  class Operator : virtual public Teuchos::Describable {
  public:


    typedef Scalar scalar_type;

    typedef LocalOrdinal local_ordinal_type;

    typedef GlobalOrdinal global_ordinal_type;

    typedef Node node_type;



    virtual const Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> > & getDomainMap() const = 0;

    virtual const Teuchos::RCP<const Map<LocalOrdinal,GlobalOrdinal,Node> > & getRangeMap() const = 0;


    virtual void apply(const MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &X, 
               MultiVector<Scalar,LocalOrdinal,GlobalOrdinal,Node> &Y, 
               Teuchos::ETransp mode = Teuchos::NO_TRANS, 
               Scalar alpha = Teuchos::ScalarTraits<Scalar>::one(),
               Scalar beta = Teuchos::ScalarTraits<Scalar>::zero()) const = 0;

    virtual bool hasTransposeApply() const;


  };

  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
  bool Operator<Scalar,LocalOrdinal,GlobalOrdinal,Node>::hasTransposeApply() const {
    return false;
  }

} // Tpetra namespace

#endif // TPETRA_OPERATOR_HPP