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From Erik Gollot <erik_gol...@yahoo.fr>
Subject Re: Services and versions
Date Sat, 26 Jun 2010 13:27:55 GMT

So filters with the version attribute works with JNDI ! Great !!!

Thanks

Bartosz Kowalewski a ├ęcrit :
> Hi Erik,
>
> Continuing Lin's guide:
>
> You should be now able to use something similar to:
> "aries:services/javax.jms.MessageListener/(" +
> Constants.VERSION_ATTRIBUTE + "=1.0)"
> when doing JNDI lookup.
>
> I hope I'm not misstating anything.
>
> Best regards,
>   Bartek
>
> 2010/6/25 Lin Sun <linsun.unc@gmail.com>:
>   
>> Hi
>>
>> When you publish a service, you could specify the version info in
>> service property, for example, publishing a service using blueprint
>> XML:
>>
>> <service ref="myMessageDrivenBean" interface="javax.jms.MessageListener">
>>   <service-properties>
>>        <entry key="version" value="1.0" />
>>   </service-properties>
>> </service>
>>
>> Or you could do similar thing without using blueprint, using
>> context.registerService
>>
>>        Dictionary dict = new Hashtable();
>>        dict.put(Constants.VERSION_ATTRIBUTE, "1.0");
>>        sr = context.registerService(MessageListener.class.getName(),
>> new MyMessageDrivenBean(context), dict);
>>
>> A client can use filter to specify the exact query it wants, for
>> example something like below -
>>
>> String fiter = "(" + Constants.VERSION_ATTRIBUTE + "=1.0")";
>>
>> Then pass the filter into context.getServiceReferences(clazz, filter)
>> to get the service reference for the service you are interested.
>>
>> HTH
>>
>> Lin
>>
>>
>>
>> On Thu, Jun 24, 2010 at 8:16 AM, Erik Gollot <erik_gollot@yahoo.fr> wrote:
>>     
>>> Hello,
>>>
>>> first, thanks for your work in the OSGI  world !
>>>
>>> This is my first question about Aries.
>>>
>>> So, when we publish a service, we can specify a version number, ok ?
>>> So, now, if I've published 2 versions of the "same service", how a client
>>> can specify the version he needs when a "IntialContext.lookup" is performed
>>> ? Do we need an OSGIfied JNDI ?
>>>
>>> Thanks
>>>
>>>       
>
>   


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