32 | | ??? asked if it would be worth the model followed by some AJAX applications to be able to have an active service notification. This model maintains an open socket sending echo messages to avoid HTTP timeouts, but it was discarded because it was not reliable (once the connection is lost, the client should reconnect to the service, sending the job identifier. Then ??? told us about [http://publib.boulder.ibm.com/infocenter/tivihelp/v2r1/index.jsp?topic=/com.ibm.itame.doc/am60_webseal_admin119.htm a way to send/set job identifier as an HTTP header], so it is an out-of-band parameter (it does not need to be set as an explicit call parameter to the web service). |
| 32 | ??? asked if it would be worth the model followed by some AJAX applications using asynchronous services to be able to have an active service notification. Although it was not identified then, this model is [http://ajaxian.com/archives/comet-a-new-approach-to-ajax-applications Comet], (you should also read ''[http://www.webtide.com/downloads/whitePaperWhyAjax.html Why Comet?]'' and ''[http://www.adaptivepath.com/ideas/essays/archives/000385.php Ajax, a new approach to web applications]'') |
| 33 | [[Image(http://ajaxian.com/wp-content/images/comet.png)]] |
| 34 | |
| 35 | This model maintains an open socket sending echo messages to avoid HTTP timeouts, but it was discarded because it was not reliable (once the connection is lost, the client should reconnect to the service, sending the job identifier. Then ??? told us about [http://publib.boulder.ibm.com/infocenter/tivihelp/v2r1/index.jsp?topic=/com.ibm.itame.doc/am60_webseal_admin119.htm a way to send/set job identifier as an HTTP header], so it is an out-of-band parameter (it does not need to be set as an explicit call parameter to the web service). |