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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2003 StatPro Italia srl
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 composite.hpp
\brief composite pattern
*/
#ifndef quantlib_composite_hpp
#define quantlib_composite_hpp
#include <ql/qldefines.hpp>
#include <boost/shared_ptr.hpp>
#include <list>
namespace QuantLib {
//! %Composite pattern.
/*! The typical use of this class is:
\code
class CompositeFoo : public Composite<Foo> {
...
};
\endcode
which causes CompositeFoo to inherit from Foo and provides it
with methods for adding components. Of course, any abstract
Foo interface must still be implemented.
\ingroup patterns
*/
template <class T>
class Composite : public T {
protected:
std::list<boost::shared_ptr<T> > components_;
void add(const boost::shared_ptr<T>& c) { components_.push_back(c); }
typedef typename std::list<boost::shared_ptr<T> >::iterator iterator;
typedef typename std::list<boost::shared_ptr<T> >::const_iterator
const_iterator;
};
}
#endif
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