if (lowerBound != null) { inRange &= lowerBound <= number;
if (upperBound != null) { inRange &= upperBound >= number; }  this.setValid(inRange); } catch (NumberFormatException e) { isNumber = false; setValid(false);
	public void performValidation() {		super.performValidation();		isNumber = this.isValid();		if (isValid()) {			int number = Integer.parseInt(getComponent().getValue().trim());			boolean inRange = true;			if (lowerBound != null) {				inRange &= lowerBound <= number;			}			if (upperBound != null) {				inRange &= upperBound >= number;			}			this.setValid(inRange);		} else {			setValid(!isRequired());		}	}