On 10/09/2012 1:42 PM, David Mansfield wrote:
Unfortunately not, although I agree from a architecture perspective.
The client is behind a firewall/proxy. The client will be pulling
transactions from a "public" server and feeding them into an internal
system via a different api, basically it's a bridge between two
systems with two APIs. The one system I have control over, and I have
control over the bridge.
The client needs to be fairly responsive to new transactions that
become "available" on the server and I'm worried polling would be
expensive.
How does the cost of being late increase with the length of the delay?
What is the cost of a poll?
After that it just becomes a mathematical calculation.
Ron
On 09/10/2012 01:16 PM, Ron Wheeler wrote:
This sounds like a "push" application.
Can you not put a web service on the client side that the server calls
when it has something new to say?
Ron
On 10/09/2012 9:29 AM, David Mansfield wrote:
Hi All,
Just wondering what the best practice is for having a web service
client "wait" for some event that happens server side.
In my particular case, I need to have a web service along the lines of
"get pending transactions" and a new transaction is submitted via a
form submit in the web application (servlet), hopefully in the same VM.
I realize polling is an option of course, but I despise polling and
would prefer some kind of blocking-queue type implementation with a
blocking "take" in the web service method and a "put" in the servlet
during the POST or whatever.
Some other considerations: it will only ever be _one_ client calling
the "get pending transactions" so issues of resource consumption by a
blocking call are not relevant.
Can I simply implement some blocking java code inside my web service
method and everything will just work neatly?
I have read about multiple asynchronous replies to a web-service
method and was wondering what that really means and if there are a any
references in CXF documentation?
TIA,
David Mansfield
Cobite, INC.
--
Ron Wheeler
President
Artifact Software Inc
email: [email protected]
skype: ronaldmwheeler
phone: 866-970-2435, ext 102
