Services are more dynamic than packages; they can come and go at will,
package wiring cannot. Once a bundle is wired to a given package, it
will not wire to another provider until the framework is refreshed.
Performing an update is not sufficient. You must always refresh the
framework to cause any rewiring.
-> richard
On 9/27/10 2:33, Sandra Krneta wrote:
I have component consuming MusicPlayer service, that service is
declarative service and its component.xml
Looks like this
<implementation class="playercoreimpl.MusicPlayerServiceImpl"/>
<service>
<provide interface="playercore.MusicPlayerService"/>
</service>
Component that consumes it imports player core service
*Import-Package*:
org.osgi.framework;/version/="1.3.0",
playercore;/version/="[1.0.0,2.0.3)",
and has component.xml like this
<implementation class="testbundle.Activator"/>
<reference bind="setMusicPlayer" cardinality="1..1"
interface="playercore.MusicPlayerService" name="MusicPlayerService"
policy="dynamic" unbind="unsetMusicPlayer"/>
And bind and unbind methods look like this
* private* AtomicReference<MusicPlayerService> musicPlayerRef = *new*
AtomicReference<MusicPlayerService>();
* public* *void* setMusicPlayer(MusicPlayerService musicPlayer) {
musicPlayerRef.set(musicPlayer);
setMusicPlayerToPlayer(musicPlayer);
}
*public* *void* unsetMusicPlayer(MusicPlayerService musicPlayer) {
musicPlayerRef.compareAndSet(musicPlayer, *null*);
}
The problem is, when I have two bundles that export playercore package
(different versions)started in framework
and I stop one of them, just unbind method is called and consuming
bundle stops, it doesn’t start using other version
of service. Update of consuming bundle doesn’t help.
One more thing is confusing, if bundle that exports playercore with
lower version is started and consumer bundle is started,
But then I stop player corebundle, consuming bundle stops, then after
installation and starting of playercore component
with higher version and update of consuming component, component is
started, but vice versa it is not case.
I am using Equinox.
If anyone has solution for this, please let me know it is urgent
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