[teiid-issues] [JBoss JIRA] Commented: (TEIID-143) Query should 'find' connector types and jars rather than have them predefined in the config.

[Ramesh Reddy (JIRA)]

    [ https://jira.jboss.org/jira/browse/TEIID-143?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12455633#action_12455633 ] 

Ramesh Reddy commented on TEIID-143:
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Or simply you could use DNA(http://jboss.org/dna), that will do the version of the jar. That may be the direction in the future. 

I want ask the basic question is how important is to support the connectors though extension modules? Is it a common practise in customer sites that they apply a patches to currently running server, instead of in a maintenance window? if we do not support connector jars in extension modules, and only support them as the physical resources on the disk, does that impact the support?

The advantage here is, none of the third party jars needed by a connector need to be defined as extension modules, thus not exposed to to whole system. 

The more I think about this, these need to be OSGI (http://www.osgi.org/Main/HomePage) bundles.  Java 7 is also introducing a module system (JSR 294, http://jcp.org/en/jsr/detail?id=294), however this at least a year away. OSGI helps us with the designer too, as finally connector bundles could be seen as the sources, and UI can built around in addition to that bundle. Also, tooling for this good in eclipse. The cons is more work in Teiid to make it support OSGI. 

> Query should 'find' connector types and jars rather than have them predefined in the config.
> --------------------------------------------------------------------------------------------
>
>                 Key: TEIID-143
>                 URL: https://jira.jboss.org/jira/browse/TEIID-143
>             Project: Teiid
>          Issue Type: Feature Request
>          Components: Misc. Connectors
>    Affects Versions: 6.0.0
>            Reporter: John Doyle
>             Fix For: 6.1.0
>
>   Original Estimate: 1 week
>  Remaining Estimate: 1 week
>
> Currently, dqp as delived with Designer is preconfigured with connector types.  I think it should discover the connectors that are available upon startup.  This would make it easier to add connectors to a kit.  The current process for adding a connector to a kit is manual and error prone.  We have problems with it on nearly every release.  
> This is also an attractive feature for embedding query in other environments.

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