Question

I’m trying to convert an entire column values into a arrayList using ormlite on android, is this possible, with direct api?
Using raw results i get close, but not quite:

GenericRawResults<String[]> rawResults =
     getHelper().getMyProcessDao().queryRaw(
         queryBuild.selectColumns("nid").prepareStatementString());
List<String[]> result = rawResults.getResults();

Answer 1

Hrm. I’m not sure this is what you want. However, one way to accomplish what you ask for specifically is through by using the RawRowMapper which can be passed to ORMLite’s DAO method: dao.queryRaw(String, Rowmapper, String…).

Something like the following should work:

RawRowMapper<Integer> mapper = new RawRowMapper<Integer>() {
     public Integer mapRow(String[] columnNames, String[] resultColumns) {
        // maybe you should verify that there _is_ only 1 column here
        // maybe you should handle the possibility of a bad number and throw
        return Integer.parseInt(resultColumns[0]);
     }
};
GenericRawResults<Integer> rawResults =
    getHelper().getMyProcessDao().queryRaw(
        queryBuild.selectColumns("nid").prepareStatementString(), mapper);
List<Integer> list = rawResults.getResults();