[ebxmlms-develop] Why the delay after receiving a message?

[Gait B. <gai...@ti...>]

Hi team,

while trying to speed up the receiving process (one of our apps is batch =
oriented and typically needs to retrieve any buffered messages as fast =
as possible without waiting for new ones), I found that the wait time is =
reset to REQUEST_MIN_WAIT_INTERVAL after receiving a message from the =
server (in Request.java), rather than the value set explicitly. While my =
testing showed having 2 listeners polling every 10ms will result in =
message loss (I patched Request.java to leave the value at the =
customInterval), I am curious about the cause behind that, and a =
possibly more accurate timing. For instance, making my listeners poll at =
100ms went just fine.

Trying to bypass the polling mechanism in Request.java and going =
directly through the MessageServiceHandlerConnection, as suggested a =
while ago to Jason by Ng, gave me some issues with the database =
connection when the MSH is running (using hsqldb) and with null pointers =
when the MSH is not running.=20
Ideally, I'd like to retrieve the number of messages queued in the MSH =
for my AC, and then just retrieve those messages in a burst. However, =
getPendingMessages always returns an empty list, rather than a list of =
queued messages, so I can't even count the number pending. It would be =
even cooler if I could retrieve the messages by their messageId.

thnx, Gait.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Gait Boxman
Manager Advanced Technology & Standards
TIE Product Development BV
Amsterdam, The Netherlands
Tel: +31 20 658 9091  Fax: +31 20 658 9945
E-mail: gai...@ti...  WWW: www.TIEglobal.com
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~