Re: [WebStart] How can I change the location of the Web Start cache?

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Date: Fri, 05 Nov 2004 02:09:14 GMT

On Thu, 04 Nov 2004 14:56:08 +0000, Tarlika Elisabeth Schmitz wrote:

> Hello,
>
> In case you're reading this, Andrew, I've got a new challenge for you:
> (I heard on the grape-vine ...

Whoever said that?

>..that you're a bit of a WebStart specialist ;-) )

..Slap them for me!

I am a leading proponant of WebStart, and use it's simpler forms for
my own software suite, but in no way am I an expert/specialist on it*.

> Most of the WebStart docs I have found seem to refer to older versions
> and therefore some of the tips I've seen don't work. I am running 1.4.2
>
> The webstart cache is normally installed per user, not per system. On
> Linux, the cache is located somewhere in $HOME/.java, and on Windoze
> somewhere in the application folder.
>
> I want to use WebStart for an Intranet application, more or less as a
> convenience: rather than having to install every new release on X
> machine, I'll just pop it on the local server.
>
> 1) I want to pre-install the cache and provide an icon to the
> application (desktop integration).

I do not quite follow. Do you mean as distinct to the shortcuts
that JWS creates for the application itself?

>.. I guess, I'll just have to do this by
> hand for the first installation. Or does anyone have a better idea?
>
> 2) I would like to choose a different location for the cache (per system
> rather than per user).
> Somewhere I saw the tip to change the following property:
> javaws.cfg.cache.dir=c:/Programme/JavaSoft/JWSCache ...

Based on the 'JWSCache' string, on which the only reference
was the Sun forums, I found my way to this..
<http://java.sun.com/j2se/1.5.0/docs/guide/deployment/deployment-guide/properties.html>

It looks hopeful for configuring the sorts of things of which
you are referring, but I am still working through this document,
and not much of what it says makes sense to me.

I can find none of the files they refer to on my WinXP box,
and none of the 'system properties' they mention appear in
the System.getProperties enumeration.

> I think there used to be a javaws.cfg file but there isn't any longer.
> Where are all these settings stored now?

..you might get some tips from that page I mentioned, I
will certainly be giving it a closer look.

[ This is of interest to me since I want to deploy Saverbeans
ScreenSavers to Win/*nix boxes using JWS, but they need to be
installed in specific directories. * But, to be honest, your
post has got me closer to that goal than all my earlier
investigations! ;-) ]

-- 
Andrew Thompson
http://www.PhySci.org/codes/  Web & IT Help
http://www.PhySci.org/  Open-source software suite
http://www.1point1C.org/  Science & Technology
http://www.LensEscapes.com/  Images that escape the mundane

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