@Override
    public String toString() {
        return super.toString() + " - JID: " + getJID() + " - State: " + getState().name();
    }
Returns the {@link NodeAffiliate} that owns this subscription. Users that have a
subscription with the node will ALWAYS have an affiliation even if the
affiliation is of type {@code none}.

@return the NodeAffiliate that owns this subscription.
xmppserver/src/main/java/org/jivesoftware/openfire/pubsub/NodeSubscription.java