code: public final boolean hasRequestValue (@Nonnull final String sExpectedValue)
    {
      ValueEnforcer.notNull (sExpectedValue, "ExpectedValue");
  
      return sExpectedValue.equals (getRequestValue ());
    }
docs: Utility method that checks if the passed expected value matches the request
  parameter (considering the fallback mechanism)
  
  @param sExpectedValue
  The expected value. May not be <code>null</code>.
  @return <code>true</code> if the passed value equals the actual request
  value