Re: [Winstone-devel] Does Winstone support hot deployment?

[Rick K. <ri...@kn...>]

Rupesh,

The short answer is no - there is no automatic redeployment when a jar 
file is replaced. There are workarounds however, in that the only thing 
doesn't work is the automatic detection of a change. Were you to send a 
command to the container (via the control port) explicitly saying 
"reload" after you changed a jar file, e.g. in your build script, you 
would have the behaviour you want.

If you have an understanding of how jar-file classloaders work, you'll 
be able to appreciate that this is not a simple thing to implement. In 
point of fact, most of the containers that offer this feature implement 
quite elaborate copy-on-startup and fake-filesystem schemes in order to 
simulate it. With Winstone being focussed on size, I traded this kind of 
complexity away. Given that most people don't ever need to do it and 
when they do an explicit option is available, I figured it was a fair trade.

Thanks and good luck,

Rick

Rupesh Mankar wrote:
>
> Hi,
>
>  
>
> We are planning to use Winstone Servlet container in our project. But 
> we are stuck at one point. The documentation provided at 
> http://winstone.sourceforge.net/ does not contain any information 
> about *hot deployment* support in Winstone for JAR files.
>
>  
>
> Does it support hot deployment directly? If not directly, do I need to 
> configure something?
>
>  
>
> Your help will be highly appreciated.
>
>  
>
> Thanks and Regards
>
> -Rupesh Mankar
>
>  
>
>  
>
>  
>
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