Re: question about pipe advertisements

The most significant element described in a pipe advertisement is the 
PipeID, all other information is simply metadata.  The pipe 
advertisement can be generated at runtime using either a pre baked pipe 
id's, etc.  So long as every peer can generate the same pipe id, that's 
all that matters for binding to a pipe. 

The JXME proxyless project offer a simple propagated pipe tutorial which 
maybe of interest to you, keep in mind that it generates the same pipe 
id used by instantp2p, shell, and MyJXTA2.

http://jxme.jxta.org/source/browse/jxme/proxyless/proto/demo/chat/ChatDemo.java?rev=1.9&view=auto&content-type=text/vnd.viewcvs-markup

We'll probably refactor it for inclusion into the Guide tutorials

Mohamed

John D. Blair wrote:

> The commentary in the JXTA Programmer's Guide explains that pipe 
> advertisements should keep the same unique id.  It demonstrates this 
> by using a pipe advertisement stored in an XML file.
>
> It is unclear to me if the pipe advertisement unique id should be the 
> same across my entire JXTA network (that is, the same pipe 
> advertisement file on each peer), or if they should be different for 
> each peer but stay the same each time a peer is executed.
>
> Stated concretely, which of these should I do:
> 1) Generate a pipe advertisement file while developing my application, 
> and include that in the app's distribution so every peer has the same 
> advertisement file, or
> 2) Generate a pipe advertisement file the first time the app is 
> started up, and re-use that on that peer.
>
> thanks!
>  -john.
>
>
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