Re: [xmlblaster] failsave problems

[Marcel Ruff <mr at marcelruff.info>]

koen.boutsen at ibsbe.be wrote:
> Hi
>
> 1. When the client cannot get a connection with the xmlblaster server 
> during the publishing of a document, I want it to be saved in an 
> Oracle database.
> I see in the database that when I run the publish class, a table 
> xb_entries is created.  But nothing is written in it.  How can I 
> achieve that ?
Use the command line example at
  
http://www.xmlblaster.org/xmlBlaster/doc/requirements/client.failsafe.html#play
They do peristent client side queueing if the server is lost.
(This works for our C++ clients as well)
You can easily verify it by running the example.

> 2. If this works, how can I make shure that, whenever the xmlblaster 
> server is back online, this save document is published back on the 
> xmlblaster ?
see 1.
> 3. If the document is published, another client can get this document. 
>  How can this client acknowledge the receiving of the document, so 
> that the document is removed from xml blaster ?
All subscribers consume the document, they will receive it only once.
The ACK is send automatically after your update() method of the 
subscribers returns.

Note:
The document is available in a history queue inside xmlBlaster for other 
purposes, you can switch off the history
queue on demand:
http://www.xmlblaster.org/xmlBlaster/doc/requirements/interface.publish.html
The default history depth per topic is 10, so the 11th document will 
throw out the first.

regards
Marcel
> Best regards / Vriendelijke groeten / Cordialement,
> *
> Koen Boutsen *
> Consultant
>
> *IBS TECHNOLOGY & SERVICES *
> Leuvensesteenweg 643, B-1930 Zaventem, Belgium
> Phone: +32 (0)2 723 91 46      
> Fax: +32 (0)2 723 92 99      Mobile: +32 (0)495 38 92 13 _
> __www.ibsts.be_ <http://www.ibsts.be/>


--
Marcel Ruff
http://www.xmlBlaster.org