The answer is the same if you are using OSGi DS (Felix SCR) to define the service.

Tom
 
 
 
----- Original message -----
From: Lars Vogel <lars.vo...@vogella.com>
Sent by: equinox-dev-boun...@eclipse.org
To: Equinox development mailing list <equinox-dev@eclipse.org>
Cc:
Subject: [EXTERNAL] Re: [equinox-dev] In which thread are OSGI services started
Date: Wed, Sep 4, 2019 1:44 PM
 
Thanks Neil and BJ. What if I use OSGi ds (Felix) to define the service? 
 
 
Best regards, Laes
 
Neil Bartlett <njbartl...@gmail.com> schrieb am Mi., 4. Sep. 2019, 14:44:
Short answer is that you should not make any assumption about the thread that your component is activated.
 
Long answer is that for an immediate component, it is likely to be activated in whichever thread called Bundle.start(). For a lazy service component, it is likely to be activated in whichever thread called BundleContext.getService().
 
But the outcome is the same. You are always "borrowing" a thread and should never do long running work in the activate method of a component. If you have any such work to do, then you should spin it out as a thread or submit it to an executor service.
 
Neil
 
On Wed, 4 Sep 2019 at 13:41, Lars Vogel <lars.vo...@vogella.com> wrote:
Friends of Equinox,

If I create an immediate OSGi service, in which thread is it created?
How about lazy OSGi services?

The background of my question is that I would like to replace an
Eclipse early startup extension with an immediate OSGi but I'm not
sure if that would block the main thread until the service has been
created.

Best regards, Lars

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