#ifndef ROWSETCACHE_H
#define ROWSETCACHE_H

#include "sourceObject.h"
#include "presenter.h"
#include "iHaveParameters.h"
#include "rowSet.h"

class RowSet;
class RowState;
typedef boost::intrusive_ptr<const RowSet> RowSetCPtr;

class RowSetCache : public IHaveParameters, public SourceObject {
	public:
		RowSetCache(ScriptNodePtr p);

		bool checkAndExecute(ExecContext *, const Glib::ustring &, const Glib::ustring &, const IHaveParameters *, const RowProcessorCallback &);
		virtual RowSetPresenterPtr openFor(ExecContext *, const Glib::ustring &, const Glib::ustring &, const IHaveParameters *) = 0;
		virtual void save(ExecContext *, const Glib::ustring &, const Glib::ustring &, const IHaveParameters *) = 0;
		virtual void discard(ExecContext *, const Glib::ustring &, const Glib::ustring &, const IHaveParameters *) = 0;

	protected:
		virtual RowSetCPtr getCachedRowSet(ExecContext *, const Glib::ustring &, const Glib::ustring &, const IHaveParameters *) const = 0;
		typedef boost::function<void (const std::string &, const VariableType &)> KeyApplier;
		void applyKeys(ExecContext * ec, const KeyApplier & f, const IHaveParameters * ps) const;
		const bool inherit;
};
typedef boost::intrusive_ptr<RowSetCache> RowSetCachePtr;

#endif