Follow below steps to identify the issue.

1) Are there many extension jars available? Whether they have same package
name ? If yes, you cannot have like that in OSGI environment then some jars
which have the same package name will not be picked by the OSGI class
loader.. You need to have unique package name..

2) Check how many OSGI bundles are exists in dropins folder.. If you are
put a jar in to lib directory then it will be converted in to OSGI bundle
and copies to dropins folder. Then if you delete a jar in lib then you also
need to delete it from dropins as well..

Thanks,
Mohan


On Mon, Feb 16, 2015 at 10:57 AM, Danula Eranjith <[email protected]> wrote:

> Hi,
>
> I am trying to implement a Custom OutputAttributeAggregator for CEP. I
> have already created the extension and added the jar files to
> <CEP_HOME>/repository/components/lib and updated the siddhi.extension file
> as well according to [1]
>
> Somehow I keep on getting the following error when creating the execution
> plan
>
> *Exception: Invalid query specified, No extension exist for
> OutputAttributeExtension{extensionName='bm', functionName='getProduct',
> rename='product'} *
>
> I have specified the namespace and function name accordingly with siddhi
> annotation.
>
> Any idea on this?
>
> [1] -
> https://docs.wso2.com/display/CEP300/Writing+a+Custom+OutputAttributeAggregator
>
> Thanks,
> --
> *Danula Eranjith*
> Software Engineering Intern
> WSO2, Inc.
> lean.enterprise.middleware
>
> Mobile: +94719425232
> LinkedIn <http://lk.linkedin.com/in/danula> | Twitter
> <https://twitter.com/danulaera>
>
> _______________________________________________
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>
>


-- 
*V. Mohanadarshan*
*Software Engineer,*
*Data Technologies Team,*
*WSO2, Inc. http://wso2.com <http://wso2.com> *
*lean.enterprise.middleware.*

email: [email protected]
phone:(+94) 771117673
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