QueryBuilder and BasicDBObjectBuilder usage in MongoDB 3.3.0 above

Question

PART 1

Following up solutions to Querying Mongo Collection using QueryBuilder in Mongo 3.3.0 , I tried implementing the suggested methods to im

Answer 1

The second argument of find method is result type. Try as below.

FindIterable tDocTypeList = dbCollection.find(filter, TDocType.class);

Update for projection

FindIterable tDocTypeList = dbCollection.find(filter, TDocType.class).projection(outputQuery);

Update for appending filters

List filters = new ArrayList<>();
for (Map.Entry entry : query.getParams().entrySet()) {
        // this is where its building the query
   if (some condition){
       filters.add(Filters.eq(entry.getKey(), entry.getValue()));
   }
   if (some other condition){
       filters.add(Filters.in(entry.getKey(), query.getValues()));
   }
}
FindIterable docType = dbCollection.find(Filters.and(filters));