[TYPO3-mvc] own class vars in Domain/Model

[Georg Schönweger]

Hi all,

I need some own class vars ($this->magick) in my model (with no property
/ database mapping) for some calculations / logic. Is it save to use own
class vars in Extbase models?
... I'm worried that this class vars are considered when extbase checks
if the model changes and tries to save this changes to the database. Is
there some annotation for ignoring class vars by extbase annotation
handling?

regards,
Georg