> Wondering if someone can shed a little light on the method of > communication that is employed when you use <cfinvoke > component="">? ie, let's say you have a CFC connecting to > another CFC in the local system -- what is the transmission > protocol for this operation?
I don't think there's any "transmission protocol" at work in this case - the CF server reads the request in one file, then reads the other file from the filesystem and runs it appropriately. I'm not absolutely sure about this, but I'd be really surprised if things worked differently. > Also, along these lines, what communication methodology/transmission > protocol is employed when cfinvoking a remote web service? I know > that the data is transformed into SOAP, but how is it actually > transmitted? First, CF sends an HTTP GET request to fetch the WSDL from the given WEBSERVICE attribute. The response it receives should contain an XML document, which CF then parses to learn about the remote interface. Next, CF uses Axis to create Java classes to correspond to various things within the WSDL. Finally, it invokes one of those classes, which sends an HTTP POST request to the remote interface. This request contains a SOAP request envelope, which again is an XML document. The response should contain a SOAP response, which is also an XML document. On subsequent CFINVOKEs of the same web service, I'm pretty sure that CF skips fetching the WSDL document and just uses the existing cached information. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ Fig Leaf Software provides the highest caliber vendor-authorized instruction at our training centers in Washington DC, Atlanta, Chicago, Baltimore, Northern Virginia, or on-site at your location. Visit http://training.figleaf.com/ for more information! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware: a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:191142 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
