code: protected void updateStatsRow(Object rowKey, Object rowValues[]) {
          rowValues[0] = now;
          rowValues[1] = m_hostId;
          rowValues[2] = m_hostname;
      }
docs: Update the parameter array with the latest values. This is similar to
  populateColumnSchema in that it must be overriden by derived classes and
  the derived class implementation must call the super classes
  implementation.
  @param rowKey Key identifying the specific row to be populated
  @param rowValues Output parameter. Array of values to be updated.