How to use

getString

method

in

obvious.data.Tuple

@Override
public double value(int attIndex) {
 Class<?> c = tuple.getSchema().getColumnType(attIndex);
 double value = -1;
 if (ObviousWekaUtils.isNumeric(c)) {
  return Double.valueOf(tuple.get(attIndex).toString());
 } else if (ObviousWekaUtils.isString(c)) {
  return Double.valueOf(attribute(attIndex).indexOfValue(
    tuple.getString(attIndex)));
 } else if (ObviousWekaUtils.isDate(c)) {
  return tuple.getDate(attIndex).getTime();
 }
 return value;
}

@Override
public int addRow(Tuple tuple) {
 if (tuple.getSchema().equals(getSchema())) {
  String colName = tuple.getString("name");
  Class<?> c = (Class<?>) tuple.get("type");
  Object value = tuple.get("default");
  addColumn(colName, c, value);
 }
 this.fireTableEvent(getColumnCount(), getColumnCount(),
   TableListener.ALL_COLUMN, TableListener.INSERT);
 return getColumnCount();
}

@Override
public int addRow(Tuple tuple) {
 Schema tupleSchema = tuple.getSchema();
 for (int i = 0; i < tupleSchema.getColumnCount(); i++) {
  if (!tupleSchema.getColumnName(i).equals(schema.getColumnName(i))
    || !tupleSchema.getColumnType(i).equals(schema.getColumnType(i))) {
   return -1;
  }
 }
 Instance inst = new Instance(schema.getColumnCount());
 for (int i = 0; i < tuple.getSchema().getColumnCount(); i++) {
  Attribute att = instances.attribute(i);
  if (att.isNumeric())  {
   inst.setValue(att, Double.parseDouble(tuple.get(i).toString()));
  } else if (att.isString() || att.isNominal()) {
   inst.setValue(att, tuple.getString(i));
  } else if (att.isDate()) {
   try {
    inst.setValue(att, att.parseDate(tuple.getDate(i).toString()));
   } catch (ParseException e) {
    e.printStackTrace();
   }
  }
 }
 instances.add(inst);
 return getRowCount();
}