code: public boolean isRowAvailable() {
  
          if (result == null) {
  	    return (false);
          } else if ((index >= 0) && (index < rows.length)) {
              return (true);
          } else {
              return (false);
          }
  
      }
docs: <p>Return <code>true</code> if there is <code>wrappedData</code>
  available, and the current value of <code>rowIndex</code> is greater
  than or equal to zero, and less than the length of the array returned
  by calling <code>getRows()</code> on the underlying <code>Result</code>.
  Otherwise, return <code>false</code>.</p>
  
  @throws FacesException if an error occurs getting the row availability