private boolean hasBeenSerializedAsPrimitive(BsonDocument document) {
byte[] bytes = document.toByteArray();
return bytes.length == 1 || bytes.length != bytes[0];
}
private DBObject convertToDBObject(Object pojo, Object id) {
BsonDocument document = marshallDocument(pojo);
DBObject dbo = new AlreadyCheckedDBObject(document.toByteArray(), id);
dbo.put("_id", id);
return dbo;
}