ORMLite get single database column

Question

I'm trying to use this SQL command with Ormlite:

select address from receive

With this code:

List<Receivers> receiver_address = receiverDao.queryBuilder().selectColumns("address").query();

But the object returned is:

1 = {Receivers@830028192208} 
 address = {String@830028192264} "my new address"
 city = null
 email = null
 telephone = null
 mobile = null
 name_family = null
 national_code = null
 postal_code = null
 receiver_name = null
 id = 2

I need only address field in this query without iterator such as:

List<String> list = new ArrayList<String>();
for( Receivers lst:receiver_address)
    list.add(lst.getAddress());

How to do this action?

Answer 1

您可以在此处使用RawRowMapper：

List<String> addresses = receiverDao.queryRaw("select address from receive", new RawRowMapper<String>() {
       @Override
       public String mapRow(String[] columnNames, String[] resultColumns) throws SQLException {
            return resultColumns[0];
       }
}).getResults();