public String getArrowDotSvek() {
		if (this == LinkDecor.NONE) {
			return "none";
		} else if (this == LinkDecor.EXTENDS) {
			return "empty";
		} else if (this == LinkDecor.COMPOSITION) {
			return "empty";
		} else if (this == LinkDecor.AGREGATION) {
			return "empty";
		} else if (this == LinkDecor.ARROW) {
			return "empty";
		} else if (this == LinkDecor.ARROW_AND_CIRCLE) {
			return "empty";
		} else if (this == LinkDecor.PLUS) {
			return "empty";
		} else if (this == LinkDecor.CIRCLE_CROSS) {
			return "empty";
		} else {
			throw new UnsupportedOperationException();
		}
	}