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Re: Is it possible to load two different versions of the JDBC driver in the same application? - Mailing list pgsql-jdbc

From Steven Schlansker
Subject Re: Is it possible to load two different versions of the JDBC driver in the same application?
Date
Msg-id 1EB80178-5259-4566-8577-241B20F73E94@gmail.com
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In response to Is it possible to load two different versions of the JDBC driver in the same application?  (Tecno Brain <cerebrotecnologico@gmail.com>)
Responses Re: Is it possible to load two different versions of the JDBC driver in the same application?  (Tecno Brain <cerebrotecnologico@gmail.com>)
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On Apr 11, 2014, at 2:28 PM, Tecno Brain <cerebrotecnologico@gmail.com> wrote:

> I have a Java application that is using Postgres 9.1, and we use the latest 9.1 JDBC driver.
> The same Java app requires access now to a Redshift cluster. Amazon recommends to use a Postgres 8 JDBC driver.

Why?  That’s ancient!  Have you tested that the newer driver does not work?

>
> Can I load both drivers in the same application ?

Technically, yes.  You can load each driver in a separate classloader.  You may wish to look into a container solution
likeOSGI if you go this path. 

I wouldn’t recommend it.  Diagnosing problems when multiple class loaders have the same classes loaded but different
versionswill quickly melt your brain into a puddle of mush.

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