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#ifndef CACHE_H
#define CACHE_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 Cache : public IHaveParameters, public SourceObject {
public:
Cache(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<Cache> CachePtr;
#endif
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