public void setButtonTooltipText(final String TEXT) {
        if (null == buttonTooltipText) {
            _buttonTooltipText = TEXT;
            fireUpdateEvent(REDRAW_EVENT);
        } else {
            buttonTooltipText.set(TEXT);
        }
    }
public void setButtonTooltipText ( final String TEXT ) { if ( null == buttonTooltipText ) { _buttonTooltipText = TEXT ; fireUpdateEvent ( REDRAW_EVENT ) ; } else { buttonTooltipText . set ( TEXT ) ; } }
Defines the text that will be shown in the button tooltip. The
knob in the radial gauges acts as button if interactive == true.

@param TEXT