timedElement the associated TimedElementSupport.
Should not be null.
param
isBegin defines whether this condition is for a begin list.
param
offset offset compared to the time container's begin time.
super(timedElement, isBegin);
this.offset = offset;
//
// Insert a new TimeInstance in the associated TimedElementSupport's
// begin or end list.
//
new TimeInstance(timedElement,
new Time(offset),
false, // no clear on reset
isBegin);