protected function generateEntryKey($token, $event, $date)
    {
        return
            $this->normalizeForKey($token) .
            '.' .
            $this->normalizeForKey($event) .
            '.' .
            $this->normalizeForKey($date);
    }
protected function generateEntryKey($token, $event, $date)
    {
        return
            $this->normalizeForKey($token) .
            '.' .
            $this->normalizeForKey($event) .
            '.' .
            $this->normalizeForKey($date);
    }
protected function generateEntryKey ( $ token , $ event , $ date ) { return $ this -> normalizeForKey ( $ token ) . '.' . $ this -> normalizeForKey ( $ event ) . '.' . $ this -> normalizeForKey ( $ date ) ; }
Create key given an entry.

@param string $token Event
@param string $event Token
@param string $date  Date

@return string key
Create key given an entry .