/**
 * @file   proxy.hpp
 * @author Julian Iseringhausen <isering@ins.uni-bonn.de>
 * @date   Mon Apr 18 12:23:43 2011
 *
 * @brief  Header file for the classes VMG::CommandProxyBase and
 *         VMG::CommandProxy, used register commands at the factory.
 *
 */


#ifndef COMMAND_PROXY_HPP_
#define COMMAND_PROXY_HPP_

namespace VMG
{

class Command;

class CommandProxyBase
{
public:
  CommandProxyBase();
  virtual Command* CreateCommand() const = 0;

  virtual const char* Name() const = 0;
  virtual int Arguments() const = 0;
};

template <class T>
class CommandProxy : public CommandProxyBase
{
public:
  Command* CreateCommand() const
  {
    return new T;
  }

  const char* Name() const
  {
    return T::Name();
  }

  int Arguments() const
  {
    return T::Arguments();
  }
};

}

#endif /* COMMAND_PROXY_HPP_ */