void addInProgressCheckpoint(PendingCheckpointStats pending) {
		if (readOnly) {
			throw new UnsupportedOperationException("Can't create a snapshot of a read-only history.");
		}

		if (maxSize == 0) {
			return;
		}

		checkNotNull(pending, "Pending checkpoint");

		// Grow the array if required. This happens only for the first entries
		// and makes the iterator logic easier, because we don't have any
		// null elements with the growing array.
		if (checkpointsArray.length < maxSize) {
			checkpointsArray = Arrays.copyOf(checkpointsArray, checkpointsArray.length + 1);
		}

		// Wrap around if we are at the end. The next pos is the least recently
		// added checkpoint.
		if (nextPos == checkpointsArray.length) {
			nextPos = 0;
		}

		checkpointsArray[nextPos++] = pending;
	}
void addInProgressCheckpoint ( PendingCheckpointStats pending ) { if ( readOnly ) { throw new UnsupportedOperationException ( "Can't create a snapshot of a read-only history." ) ; } if ( maxSize == 0 ) { return ; } checkNotNull ( pending , "Pending checkpoint" ) ; if ( checkpointsArray . length < maxSize ) { checkpointsArray = Arrays . copyOf ( checkpointsArray , checkpointsArray . length + 1 ) ; } if ( nextPos == checkpointsArray . length ) { nextPos = 0 ; } checkpointsArray [ nextPos ++ ] = pending ; }
Adds an in progress checkpoint to the checkpoint history.

@param pending In progress checkpoint to add.