// Check key is within range for bottom.
closest = super.getClosest(key, val);
// midkey was made against largest store file at time of split. Smaller
// store files could have anything in them. Check return value is
// not beyond the midkey (getClosest returns exact match or next after)
if (closest != null && closest.compareTo(this.midkey) >= 0) {
// Don't let this value out.
closest = null;
}
}
// Else, key is > midkey so let out closest = null.