ColumnFactory.h

#ifndef MANTID_API_COLUMNFACTORY_H_
#define MANTID_API_COLUMNFACTORY_H_

//----------------------------------------------------------------------
// Includes
//----------------------------------------------------------------------
#include <vector>
#include "MantidAPI/DllConfig.h"
#include "MantidKernel/DynamicFactory.h"
#include "MantidKernel/SingletonHolder.h"

namespace Mantid {

namespace API {
//----------------------------------------------------------------------
// Forward declarations
//----------------------------------------------------------------------
class Column;

/** @class ColumnFactoryImpl

    The ColumnFactory class is in charge of the creation of concrete
    instances of columns. It inherits most of its implementation from
    the Dynamic Factory base class.
    It is implemented as a singleton class.

    @author Roman Tolchenov, Tessella Support Services plc
    @date 31/10/2008

    Copyright &copy; 2007 ISIS Rutherford Appleton Laboratory, NScD Oak Ridge
   National Laboratory & European Spallation Source

    This file is part of Mantid.

    Mantid is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    Mantid 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
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    File change history is stored at: <https://github.com/mantidproject/mantid>
*/
class MANTID_API_DLL ColumnFactoryImpl : public Kernel::DynamicFactory<Column> {
public:
  ColumnFactoryImpl(const ColumnFactoryImpl &) = delete;
  ColumnFactoryImpl &operator=(const ColumnFactoryImpl &) = delete;
  /// Creates an instance of a column
  boost::shared_ptr<Column> create(const std::string &type) const override;

private:
  friend struct Mantid::Kernel::CreateUsingNew<ColumnFactoryImpl>;

  /// Private Constructor for singleton class
  ColumnFactoryImpl() = default;
  /// Private Destructor
  ~ColumnFactoryImpl() override = default;
};

typedef Mantid::Kernel::SingletonHolder<ColumnFactoryImpl> ColumnFactory;

} // namespace API
} // namespace Mantid

namespace Mantid {
namespace Kernel {
EXTERN_MANTID_API template class MANTID_API_DLL
    Mantid::Kernel::SingletonHolder<Mantid::API::ColumnFactoryImpl>;
}
}

#endif /*MANTID_API_COLUMNFACTORY_H_*/