docs: public BaseSessionProxy checkForSession(String strClassAndID)
      {
          int iColon = strClassAndID.indexOf(CLASS_SEPARATOR);
          String strSessionClass = null;
          if (iColon != -1)
              strSessionClass = strClassAndID.substring(0, iColon);
          String strID = strClassAndID.substring(iColon + 1);
          if (REMOTE_SESSION.equals(strSessionClass))
              return new SessionProxy(this, strID);
          if (REMOTE_TABLE.equals(strSessionClass))
              return new TableProxy(this, strID);
          if (REMOTE_BASE_SESSION.equals(strSessionClass))
              return new BaseSessionProxy(this, strID);
          return null;    // Not a session
      }