factory.h

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/*******************************************************************************
 * wallaroo - A library for configurable creation and wiring of C++ classes.
 * Copyright (C) 2012 Daniele Pallastrelli
 *
 * This file is part of wallaroo.
 * For more information, see http://wallaroolib.sourceforge.net/
 *
 * Boost Software License - Version 1.0 - August 17th, 2003
 *
 * Permission is hereby granted, free of charge, to any person or organization
 * obtaining a copy of the software and accompanying documentation covered by
 * this license (the "Software") to use, reproduce, display, distribute,
 * execute, and transmit the Software, and to prepare derivative works of the
 * Software, and to permit third-parties to whom the Software is furnished to
 * do so, all subject to the following:
 *
 * The copyright notices in the Software and this entire statement, including
 * the above license grant, this restriction and the following disclaimer,
 * must be included in all copies of the Software, in whole or in part, and
 * all derivative works of the Software, unless such copies or derivative
 * works are solely in the form of machine-executable object code generated by
 * a source language processor.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
 * SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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 ******************************************************************************/

#ifndef WALLAROO_DETAIL_FACTORY_H_
#define WALLAROO_DETAIL_FACTORY_H_

#include "wallaroo/cxx0x.h"
#include "wallaroo/part.h"

namespace wallaroo
{
namespace detail
{

// This helper class exports the method to create the class T.
// Can't use a function because we cannot partial specialize template functions.
template < class T, class P1, class P2 >
class Factory
{
public:
    static cxx0x::shared_ptr< Part > Create( const P1& p1, const P2& p2 )
    {
        return cxx0x::make_shared< T >( p1, p2 );
    }
};

template < class T, class P >
class Factory< T, P, void >
{
public:
    static cxx0x::shared_ptr< Part > Create( const P& p )
    {
        return cxx0x::make_shared< T >( p );
    }
};

template < class T >
class Factory< T, void, void >
{
public:
    static cxx0x::shared_ptr< Part > Create()
    {
        return cxx0x::make_shared< T >();
    }
};

} // detail namespace
} // wallaroo namespace

#endif // WALLAROO_CLASS_H_