Re: [Openjnlp-devel] OpenJNLP features

[Markus K. <Mar...@mp...>]

Joan,
JWS and OpenJNLP both run on the client and feed the Java Virtual Machine.
On the server, you need to set up JNLP-descriptions, which point to any number
of jar files.
If you put newer versions of the jars on your web-server, they will be looked up
and downloaded.
This behaviour is specified in the JNLP-protocol.
From reading your mail, I get the impression that with "individual file" you
mean a single .class file.
You cannot send single .class files to the client, you have to put them in a
jar.
At my institute, we also develop some rather big applications, and we found
updating/versioning very easy to to with JNLP.
We currently put all bytecode into a single jar file (for each app).
This leads to an update, which will download a lot of unchanged code, but its
the easiest to organize.
I guess this is what your question is about.
When we want to cut our application into smaller pieces/components, I cannot see
where DeployDirector is of help.
The ability to specify the download-directory seems to involve more than the
JNLP-protocol allowas, so the DeployDirector must do something extra.
To be onest, I cannot see the benefit of DeployDirector. After going through the
'Walktrough' of DeployDirector, I get the impression that it is a Graphical
interface to the JNLP-descriptions you can write in any editor (they are XML).
Please correct me if I understood you wrong.

-Markus


Joan Puig Giner wrote:

> We are planning to develop an application that is going to be rather big and
> it will be evolving quick. We have been looking at deployment products and
> we have found JWS that makes you download the entire .JAR file and
> DeployDirector that does everything we need but we can't afford it.
>
> (assuming it will be able to tell if a file is up to date or not) my
> question is, does OpenJNLP support individual file download ? if not, any
> plans to implement that within 6 months?
>
> Thanks
> Joan
>
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