code: public void setConditionalExpression(boolean newConditionalExpression)
  	{
  		boolean oldConditionalExpression = conditionalExpression;
  		conditionalExpression = newConditionalExpression;
  		if (eNotificationRequired())
  			eNotify(new ENotificationImpl(this, Notification.SET, XbasePackage.XIF_EXPRESSION__CONDITIONAL_EXPRESSION, oldConditionalExpression, conditionalExpression));
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated