Send NotificationEvent from additional Axis2 WS

Hello,

i have the following situation. A J2me client shall be able to notify a NotificationProducerWS with certain events.
The NotificationProducer then publishes the event to all subscribed listeners.
In the WSN Consumer/Producer sample, there is only a producer publishing events every 10secs to its subscribers, no matter whether anything has happened or not.
But I want a second (non-emuse) WS sending an event (incl. some data as for instance a float value) to the producing notification WS. The producer then pushes the notification message to the listeners.The subscription/publication is no problem.
I was considering adding a method in the WSN-Producer implementation (MyCapabilityImpl) that hands over the data and sets a flag for publication. But how may i do this? and how may i access the Muse WS from outside and invoke a method in it?

any help is much appreciated (urgent)