Datastore.hpp

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/*

  This file is part of OpenFLUID software
  Copyright(c) 2007, INRA - Montpellier SupAgro


 == GNU General Public License Usage ==

  OpenFLUID 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.

  OpenFLUID 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 OpenFLUID. If not, see <http://www.gnu.org/licenses/>.


 == Other Usage ==

  Other Usage means a use of OpenFLUID that is inconsistent with the GPL
  license, and requires a written agreement between You and INRA.
  Licensees for Other Usage of OpenFLUID may use this file in accordance
  with the terms contained in the written agreement between You and INRA.
  
*/

/**
 \file Datastore.hpp
 \brief Header of ...

 \author Aline LIBRES <libres@supagro.inra.fr>
 */

#ifndef __DATASTORE_HPP__
#define __DATASTORE_HPP__

#include <map>
#include <string>
#include <openfluid/dllexport.hpp>

namespace openfluid { namespace core {

class DatastoreItem;

/**
 * @brief Container class for holding information about additional resources
 * relating to a project.
 */
class DLLEXPORT Datastore
{
  public:

    /**
     * @brief Map indexing DatastoreItems by ID.
     */
    typedef std::map<std::string, DatastoreItem*> DataItemsById_t;

  private:

    DataItemsById_t m_ItemsById;

  public:

    /**
     * @brief Creates an empty datastore.
     */
    Datastore();

    /**
     * @brief Destroys all items of the datastore.
     */
    ~Datastore();

    /**
     * @brief Gets all items of the datastore.
     *
     * @return A map of all items of the datastore.
     */
    DataItemsById_t getItems();

    /**
     * @brief Gets all items of the datastore.
     *
     * @return A const map of all items of the datastore.
     */
    const DataItemsById_t getItems() const;

    /**
     * @brief Gets the item of the datastore matching the given ID.
     *
     * @param ItemID ID of the expected item.
     * @return The item with the given ID, or 0 if not found.
     */
    DatastoreItem* getItem(const std::string& ItemID);

    /**
     * @brief Adds an item to the datastore.
     *
     * If an item already exists with the ID of the given <tt>Item</tt>,
     * it is deleted before adding.
     *
     * @param Item The item to add.
     */
    void addItem(const DatastoreItem* Item);
};

} } // namespaces

#endif /* __DATASTORE_HPP__ */