element.put(prefix + "Name", ((NamedVector)vec).getName());
}
BasicDBList dbl2 = new BasicDBList();
if (vec.isDense()) {
int nSize = vec.size();
dbl2.ensureCapacity(nSize);
for (int i = 0; i < nSize; ++i) {
dbl2.add(vec.getQuick(i));
}
}
else { // sparse, write as a set in the format [{int:double}]