From: | Peter T Mount <peter(at)taer(dot)maidstone(dot)gov(dot)uk> |
---|---|
To: | Sergei Chernev <ser(at)nsu(dot)ru> |
Cc: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: [INTERFACES] Loading JDBC - driver |
Date: | 1999-02-15 09:01:09 |
Message-ID: | Pine.LNX.4.04.9902150858340.19908-100000@taer.maidstone.gov.uk |
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Lists: | pgsql-interfaces |
On Mon, 15 Feb 1999, Sergei Chernev wrote:
> Hello,
>
> I wonder, if there is a way to load JDBC- driver from network.
> I know the method to connect using jdbc6.4.jar on local disk
> and editing CLASSPATH, but it seems to me inconvenient to
> ask user to download driver and edit environment.
>
> Does it possible to use construction like that:
> Class.forName("http://somewhere.com/postgresql.Driver/jdbc6.4.jar/postgresql
> .Driver").newInstance(); ?
> Excuse me if it is FAQ, but I didn't find anything of the kind in mailing
> list.
That's ok. What you need is a custom class loader, that fetches the jar
file from a url, then extracts the classes from it.
This is how browsers do it, but as to how you would write a class loader
is another question (one of those things I havent got round to trying yet)
;-)
Peter
--
Peter Mount, IT Section
petermount(at)it(dot)maidstone(dot)gov(dot)uk
Anything I write here are my own views, and cannot be taken as being the
official words of Maidstone Borough Council
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