fdmextoujumpsolver.cpp

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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2011 Klaus Spanderen
 
 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/
 
 QuantLib is free software: you can redistribute it and/or modify it
 under the terms of the QuantLib license.  You should have received a
 copy of the license along with this program; if not, please email
 <quantlib-dev@lists.sf.net>. The license is also available online at
 <http://quantlib.org/license.shtml>.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.
*/
 
/*! \file fdmextoujumpsolver.cpp
*/
 
#include <ql/experimental/finitedifferences/fdmextoujumpop.hpp>
#include <ql/experimental/finitedifferences/fdmextoujumpsolver.hpp>
#include <ql/experimental/processes/extouwithjumpsprocess.hpp>
#include <ql/methods/finitedifferences/solvers/fdm2dimsolver.hpp>
#include <utility>
 
namespace QuantLib {
 
    FdmExtOUJumpSolver::FdmExtOUJumpSolver(Handle<ExtOUWithJumpsProcess> process,
                                           ext::shared_ptr<YieldTermStructure> rTS,
                                           FdmSolverDesc solverDesc,
                                           const FdmSchemeDesc& schemeDesc)
    : process_(std::move(process)), rTS_(std::move(rTS)), solverDesc_(std::move(solverDesc)),
      schemeDesc_(schemeDesc) {
 
        registerWith(process_);
    }
 
    void FdmExtOUJumpSolver::performCalculations() const {
        ext::shared_ptr<FdmLinearOpComposite>op(
            new FdmExtOUJumpOp(solverDesc_.mesher, process_.currentLink(),
                               rTS_, solverDesc_.bcSet, 32));
        
        solver_ = ext::make_shared<Fdm2DimSolver>(
                              solverDesc_, schemeDesc_, op);
    }
    
    Real FdmExtOUJumpSolver::valueAt(Real x, Real y) const {
        calculate();
        return solver_->interpolateAt(x, y);
    }
}