@SuppressWarnings("unchecked")
	public Set<SbbEntityID> getSbbEntitiesAttached() {
		final Node node  = getAttachedSbbsNode(false);
		return node != null ? node.getChildrenNames() : Collections.emptySet();		
	}
@SuppressWarnings("unchecked")
	public Set<SbbEntityID> getSbbEntitiesAttached() {
		final Node node  = getAttachedSbbsNode(false);
		return node != null ? node.getChildrenNames() : Collections.emptySet();		
	}
@ SuppressWarnings ( "unchecked" ) public Set < SbbEntityID > getSbbEntitiesAttached ( ) { final Node node = getAttachedSbbsNode ( false ) ; return node != null ? node . getChildrenNames ( ) : Collections . emptySet ( ) ; }
Return a set with all sbb entities attached.

@return
Return a set with all sbb entities attached .