Eclipse Community Forums: Equinox

Home » Eclipse Projects » Equinox » ungetService

Fri, 15 May 2009 13:24

Eclipse User

Hi to everybody.

Hi have a struggle to start learning something of osgi.

Now I'm facing this issue: if I register a service s and then I retrieve
the list of services this way:

ServiceReference[] sr = bc.getAllServiceReferences(..);
(where bc is an instance of BundleContext)

i can in fact found s somewhere in sr.

Well: now, in order to eliminate s, (that is not permitting it can be used
again), I used bc.ungetService(s).
After successful execution of ungetService (it returned true), sr was not
changed: in fact I could found again s as a member of sr. (sr was obtained
via a new statement bc.getAllServiceReferences).

So I can't understand what ungetService does. What does it mean

"ungetService(ServiceReference reference)

Releases the service object referenced by the specified
ServiceReference object" ?

Thanks for your attention

Andrea

Re: ungetService [message #131326 is a reply to message #131294]

Sun, 17 May 2009 02:30

Eclipse User

andrea schrieb:
> So I can't understand what ungetService does. What does it mean

You use ungetService to inform the framework that you no longer *use* a
particular service. Whenever you *get* a service object instance from
the framework it increments an internal usage counter. The counter is
decremented when you *un-get* a service.

What you are looking for is *un-register*.

register <--> un-register
get <--> un-get

-Gunnar

--
Gunnar Wagenknecht
gunnar@wagenknecht.org
http://wagenknecht.org/

Re: ungetService [message #131491 is a reply to message #131326]

Tue, 19 May 2009 17:22

Eclipse User

Excuse me for not answering earlier.

Thanks anyway

Andrea

Previous Topic:	Problem with Jetty 6 in Equinox 3.5
Next Topic:	Declarative service

Goto Forum:

-=] Back to Top [=-

Current Time: Wed Jul 23 16:17:42 EDT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter