Michele, most helpful, many thanks!
Thomas ----- Original Message ----- From: "Michele Laghi" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, September 15, 2003 2:50 PM Subject: [spam] Re: [xmlblaster] Simple questions > Hi Thomas, > > [EMAIL PROTECTED] wrote: > > Hello, > > > > I am just getting started with XMLblaster and it seems to be a great thing! > > > > However I have few simple questions: > > > > 1. What is the difference between Subscribe() and Get() functions? Is it > > better to "subscribe" on a particular topic or call get with a Xpath query on > > the msgKeyData (I am adding dome metadata to the key). > > > When subscribing (which as for the get can be done on a particular oid > or as an xpath query) you get asynchroneous updates. One of the > advantages is that you don't need to dedicate a polling thread to > retreive the interesting messages. An other point is that using get will > return you the last update of the message so if the publisher is faster > then your get polling, then you will loose updates. > > > 2. Is there a way to flag a message as "unread" or "read" on the server for > > the re-retrieval recovery or monitoring purposes, dependent on if the message > > has been accessed by a client application. > > > Message updates are consumed when delivered (i.e. they are removed from > the delivery/callback queue). Redelivery after a failure is already > handled by the server. If you want to know which topics (or more > finegrained which updates of theese topics) which have successfully been > delivered to which clients, then I think you need to write a plugin. > > > 3. What is the proper way to add client specific properties, I am writing a > > small demo which loops over a specific directory and publishes the new > > messages onto XB server. Should I use xmlBlaster.properties adding my client > > specific settings? > > > I think that is up to you. Personally for a little demo I would put it > into xmlBlaster.properties or at the command line. > > > > Thanks for the answers and the patience. > > > > Kind regards, > > Thomas > > > > > > Saluti > > Michele >
