#ifndef TPERSISTSET_H
#define TPERSISTSET_H

// TnzCore includes
#include "tpersist.h"

//STD includes
#include <vector>

//**************************************************************************************
//    TPersistSet  declaration
//**************************************************************************************

/*!
  Container of TPersist instances that are <I> unique per concrete type </I>.

  This class acts as a container of TPersist instances where only a single
  instance of a given most-derived type can be stored.

  This is typically useful to \a overwrite objects of a given type, typically
  configuration options, without discarding the other objects.
*/

class DVAPI TPersistSet : public TPersist
{
	PERSIST_DECLARATION(TPersistSet)

	std::vector<TPersist *> m_objects; //!< #owned# Stored objects.

public:
	~TPersistSet(); //!< Destroys the stored objects.

	const std::vector<TPersist *> &objects() const
	{
		return m_objects;
	} //!< Returns the stored objects list

	void insert(std::auto_ptr<TPersist> object); //!< Overwrites an object type instance with
												 //!  the supplied one.
public:
	void saveData(TOStream &os); //!< Saves data to stream
	void loadData(TIStream &is); //!< Loads data from stream
};

#endif // TPERSISTSET_H