public boolean isConfigurationPending() {
        return state == State.unconfigured;
    }
Returns true if configuration is required by the node and is still pending to
be configured by the subscriber. Otherwise return false. Once a subscription is
configured it might need to be approved by a node owner to become active.

@return true if configuration is required by the node and is still pending to
        be configured by the subscriber.
xmppserver/src/main/java/org/jivesoftware/openfire/pubsub/NodeSubscription.java