00001 /* @HEADER@ */ 00002 // ************************************************************************ 00003 // 00004 // Sundance 00005 // Copyright (2005) Sandia Corporation 00006 // 00007 // Copyright (year first published) Sandia Corporation. Under the terms 00008 // of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 00009 // retains certain rights in this software. 00010 // 00011 // This library is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Lesser General Public License as 00013 // published by the Free Software Foundation; either version 2.1 of the 00014 // License, or (at your option) any later version. 00015 // 00016 // This library is distributed in the hope that it will be useful, but 00017 // WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 // Lesser General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Lesser General Public 00022 // License along with this library; if not, write to the Free Software 00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00024 // USA 00025 // Questions? Contact Kevin Long (krlong@sandia.gov), 00026 // Sandia National Laboratories, Livermore, California, USA 00027 // 00028 // ************************************************************************ 00029 /* @HEADER@ */ 00030 00031 #ifndef SUNDANCE_EVALUATORFACTORY_H 00032 #define SUNDANCE_EVALUATORFACTORY_H 00033 00034 #include "SundanceDefs.hpp" 00035 00036 namespace Sundance 00037 { 00038 using namespace Sundance; 00039 class Evaluator; 00040 class EvalContext; 00041 class EvaluatableExpr; 00042 00043 using namespace Teuchos; 00044 00045 /** 00046 * 00047 */ 00048 class EvaluatorFactory 00049 { 00050 public: 00051 /** */ 00052 EvaluatorFactory(){;} 00053 00054 /** */ 00055 virtual ~EvaluatorFactory(){;} 00056 00057 /** */ 00058 virtual Evaluator* createEvaluator(const EvaluatableExpr* expr, 00059 const EvalContext& context) const = 0 ; 00060 00061 }; 00062 00063 00064 /** 00065 * 00066 */ 00067 template <class ExprT, class EvalT> 00068 class GenericEvaluatorFactory : virtual public EvaluatorFactory 00069 { 00070 public: 00071 /** */ 00072 GenericEvaluatorFactory(){;} 00073 00074 /** */ 00075 virtual ~GenericEvaluatorFactory(){;} 00076 00077 /** */ 00078 virtual Evaluator* 00079 createEvaluator(const EvaluatableExpr* expr, 00080 const EvalContext& context) const 00081 { 00082 return new EvalT(dynamic_cast<const ExprT*>(expr), context); 00083 } 00084 }; 00085 } 00086 00087 00088 #endif