@Override
		protected int compare(Long d1, Long d2) {
			return Lifespan.DOMAIN.compare(d1, d2);
		}
A setter which operates on spans of snapshot keys

@param <E> the type of entry
@param <V> the type of value
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/DBTraceUtils.java