code: public void setParameterValue(final String _key,
                                    final String _value)
      {
          final List<StringValue> list = new ArrayList<StringValue>(1);
          list.add(StringValue.valueOf(_value));
          setParameterValues(_key, list);
      }
docs: Sets value for given key.
  
  @param _key key for the value
  @param _value value