protected long getDelta (long timeStamp, long maxValue)
    {
        boolean even = (evenBase > oddBase);
        long base = even ? evenBase : oddBase;
        long delta = timeStamp - base;

        // make sure this timestamp is not sufficiently old that we can't
        // generate a delta time with it
        if (delta < 0) {
            String errmsg = "Time stamp too old for conversion to delta time";
            throw new IllegalArgumentException(errmsg);
        }

        // see if it's time to swap
        if (delta > maxValue) {
            if (even) {
                setOddBase(timeStamp);
            } else {
                setEvenBase(timeStamp);
            }
            delta = 0;
        }

        // if we're odd, we need to mark the value as such
        if (!even) {
            delta = (-1 - delta);
        }

        return delta;
    }
protected long getDelta ( long timeStamp , long maxValue ) { boolean even = ( evenBase > oddBase ) ; long base = even ? evenBase : oddBase ; long delta = timeStamp - base ; if ( delta < 0 ) { String errmsg = "Time stamp too old for conversion to delta time" ; throw new IllegalArgumentException ( errmsg ) ; } if ( delta > maxValue ) { if ( even ) { setOddBase ( timeStamp ) ; } else { setEvenBase ( timeStamp ) ; } delta = 0 ; } if ( ! even ) { delta = ( - 1 - delta ) ; } return delta ; }
Obtains a delta with the specified maximum value, swapping from
even to odd, if necessary.