handle.hpp

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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2006, 2007 Eric Ehlers
 
 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.
*/
 
#ifndef qla_handle_hpp
#define qla_handle_hpp
 
#include <oh/object.hpp>
 
namespace QuantLibAddin {
 
    class Handle : public ObjectHandler::Object {
    public:
        std::string currentLink() const {
            return boost::get<std::string>(propertyValue("CURRENTLINK"));
        }
        virtual bool empty() const = 0;
    protected:
        Handle(const boost::shared_ptr<ObjectHandler::ValueObject> &properties,
           const std::string &objectId,
           bool permanent) : ObjectHandler::Object(properties, permanent) {}
    };
 
    class RelinkableHandle : public Handle {
    public:
        virtual void linkTo(const std::string &objectID) = 0;
    protected:
        RelinkableHandle(const boost::shared_ptr<ObjectHandler::ValueObject> &properties,
           const std::string &objectId,
           bool permanent) : Handle(properties, objectId, permanent) {}
    };
 
}
 
#endif