question: public void revalidate ( ) { validationError . clear ( ) ; logger . info ( "revalidate: hasValidator -> {}" , hasValidator ( ) ) ; if ( ! hasValidator ( ) ) return ; revalidationService . setHeader ( header ) ; revalidationService . setRows ( rows ) ; revalidationService . setValidator ( validator ) ; revalidationService . setOnSucceeded ( null ) ; revalidationService . setOnFailed ( null ) ; revalidationService . restart ( ) ; }
target:  walks through the data and validates each value