perl api, unsubscribe / propertyUnsubscribe

Hi all,

not quite sure if I missed something in the documentation... but...

I'm running an observer receiving events topology ( $session->topologySubscribe() ) and for "Host::somehost" ( $session->subscribe ("Host::somehost", ".*" ) . Furhermore I need to check for "somehost's" attribute change, e.g. Vendor ( $session->propertySubscribe( "Host::newhost", "Vendor", 30) ).

As soon as a new Host is discovered the script adds "Host:newhost" to the observer as well as I subscibe to its property for attribute changes.

When a host is deleted, I session->unsubscribe ( "Host::deletedhost" ).

Everything works as expected, the question is, do I have to "propertyUnsubscribe()" as well or does this "connection" dies automagically if I am not longer subscribed to the particular host at all ?

Thx  & rgrds

Christian