}

    public void addNode(NodeState node) {
        nodes.add(node);
    }

    private ComponentSelectionReason cachedReason;

    @Override
    public ComponentSelectionReason getSelectionReason() {
        if (root) {
            return ComponentSelectionReasons.root();
        }
        if (cachedReason != null) {
            return cachedReason;
        }

            }
        }
        return targetNodes;
    }

    @Override
    public ComponentSelectionReason getReason() {
        return selector.getSelectionReason();
    }

    @Override
    public boolean isConstraint() {
        return isConstraint;
    }

    @Override
    public Long getFromVariant() {
        return from.getNodeId();
    }