How to use

exists

method

in

org.ogema.core.model.simple.TimeResource

@Override
public JSONObject retrieveGETData(OgemaHttpRequest req) {
  if (selectedResource != null && selectedResource.exists()) 
    setDate(selectedResource.getValue());
  else
    setDate(""); // FIXME
  return super.retrieveGETData(req);
}
 

@Override
public JSONObject onPOST(String data, OgemaHttpRequest req) {
  JSONObject result = super.onPOST(data, req);
  if (selectedResource != null && selectedResource.exists()) 
    selectedResource.setValue(getDateLong());
  else
    setDate("");
  return result;
}
 

final Long value = (resource.exists()) ? resource.getValue() : null;
final RwPair<Long> pair = m_timeMap.get(path);
pair.read = value;

  value = getCorerrectedValue(value, mode);
if(!source.exists()) {
  source.create();
  source.setValue(value);

final RwPair<Long> pair = m_timeMap.get(path);
final Long value = pair.write;
if (!resource.exists()) {
  pair.read = null;
} else if (value == null) {