How to write Key Value Pairs in Map in a Loop without overwriting them? - dictionary

Question

the following is my problem:
I do a select on my database and want to write the values of every record i get in a map. When i do this, i only have the values of one record in my map, because the put() function overwrites the entries everytime the loop starts again. Since I have to transfer the Key:Value pairs via JSON into my Javascript and write something into a field for every Key:Value pair, an ArrayList is not an option.
I've already tried to convert a ArrayList, which contains the Map, to a Map or to a String and then to Map, but i failed.
EDIT:
Here´s my Code
def valueArray = new ArrayList();
def recordValues = [:]
while (rs.next())
{
fremdlKorr = rs.getFloatValue(1)
leistungKorr = rs.getFloatValue(2)
materialKorr = rs.getFloatValue(3)
strid = rs.getStringValue(4)
recordValues.put("strid", strid);
recordValues.put("material", materialKorr);
recordValues.put("fremdl", fremdlKorr);
recordValues.put("leistung", leistungKorr);
valueArray.add(korrekturWerte);
}
The ArrayList was just a test, i dont want to have an ArrayList, i need a Map.

Answer 1

The code as written, will give you a list of maps, but the maps will all contain the values of the last row. The reaons is the def recordValues = [:] that is outside of the while loop. So you basically add always the same map to the list and the map values get overwritten each loop.
While moving the code, would fix the problem, I'd use Sql instead. That all boils down to:
def valueArray = sql.rows("select strid, material, fremdl, leistung from ...")