#ifndef INTERFACE_ID_DEFAULT_VALUE_H

#define INTERFACE_ID_DEFAULT_VALUE_H

#include "default-value.h"

#include "object.h"

namespace ns3 {

class TypeIdDefaultValue : public DefaultValueBase

{

public:

  /**

   * \param name the name of this default value.

   * \param help the help text associated to this default value

   * \param tid the interface id which all objects created

   *        through this "default value" must support.

   * \param defaultValue the name of the object to create

   *        by default.

   */

  TypeIdDefaultValue (std::string name, 

			   std::string help,

			   TypeId tid,

			   std::string defaultValue);

  /**

   * \returns the TypeId of the object selected by the user.

   */

  TypeId GetValue (void) const;

  /**

   * \param interfaceId the new ClassId selected.

   *

   * Override the currently-selected value.

   */

  void SetValue (TypeId interfaceId);

  /**

   * \param name the new object selected.

   *

   * Override the currently-selected value.

   */

  void SetValue (std::string name);

private:

  virtual bool DoParseValue (const std::string &value);

  virtual std::string DoGetType (void) const;

  virtual std::string DoGetDefaultValue (void) const;

  std::string m_defaultName;

  std::string m_name;

  TypeId m_interfaceId;

};

} // namespace ns3

#endif /* INTERFACE_ID_DEFAULT_VALUE_H */