Thanks Tom. Like João, I am interested in the mechanics of track changes/sync/persist process.
You asked "How do you envision a CFC backend to Flex2 Data services?". I am hoping that FDS will allow multiple approaches to a CFC backend as, as we all know, there is no one method or framework for writing a persistence layer in CF. For example if you take a look at the FDS section of Christophe Coenraets' FES overview, here: http://labs.macromedia.com/wiki/index.php/Flex_Enterprise_Services:overview# Flex_Data_Service_2 It is very easy to imagine the backend CF code that could be used instead of the java code in his example, i.e. in flex-services.xml <destination id="contact"> <adapter ref="CF-DAO"/> <properties> <metadata> <identity property="contactId"/> </metadata> <server> <assembler> <class>PATH.TO.MY.DAO.CFC</class> <singleton>true</singleton> </assembler> <fill-method> <name>loadContact</name> </fill-method> <sync-method> <name>syncContacts</name> </sync-method> </server> </properties> </destination> Just two changes, and then instead of a ContactAssembler java class you have a CFC containing the various methods (fill, sync, etc); and within each of these methods you could have either simple persistence code (e.g. direct cfquery calls) or more complex code such as integration with your persistence framework of choice (e.g. Reactor/ARF). Even the sync method is straightforward as after all we used to have to do this sort of thing when handling the multiple changes from the old CFGRID java applet. As I said, it is easy to imagine basic persistence BUT what is harder to envisage are the things João mentions and others. For example; - Complex data objects & nested destinations - What do we need to do on the CF/data side to help FDS keep track of changes/dirty records (e.g.. do we need to make sure all CFC instances have a 'dirty' attribute or do we need to have a modified date on the database record. - How do we notify FDS of outside data changes, for example from other presentation layers perhaps, but not necessarily, using the same CFC persistence layer, within or without a framework (e.g. ModelGlue). Perhaps by FMS and CF event gateways? - How will paging work - The usual type casting issues All of the above, I imagine, need to be tackled for all of the other FDS adapters too. Thanks again Tom, any further information is gratefully received. One last thing - I do think it is very important that when Flex 2 and/or Enterprise Services is finally released, that it include a CF FDS adapter. Not only is it important to us Cfers but I think it also sends a wider message that Adobe is beginning to exploit the synergies between products (Flex & CF) in its portfolio. Regards Ian -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Jordahl Sent: 05 January 2006 18:35 To: [email protected] Subject: SPAM-LOW: [flexcoders] Re: Beta Flex 2 release Date? Any one for a Guess Hello, I am working on the ColdFusion MX 7 and Flex2 integration. Here is what we currently have scheduled to be available around the same time as the next Flex2 beta. - An update to the CFC Adapter that is currently available on Macromedia labs. This is mainly bug fixes, and updates to stay in sync with the current Flex2 code. - A CF Event Gateway Adapter for Flex2 and Flex Asynchronous Event Gateway for CFMX7. These two pieces together allow you to publish and subscribe to Flex Enterprise Services "destinations" from a ColdFusion Component. You can publish messages from a Flex client that a CFC will receive. You can publish messages from CFML code that a Flex client can see. For an idea on how this can be used, see the Flex JMS (Java Messaging Service) Adapter example. This is for Async Messaging and does not integrate ColdFusion with Flex Data Services (see below). So the major new piece here is integration with the publish/subscribe functionality in the Flex2 Messaging services. We are also looking to create an adapter that will enable a ColdFusion Component to be the back end to the Flex Data Services layer, similar to the way Java Objects can currently be used. I don't expect this to be available at the same time as the next beta, but miracles can happen. :) Rest assured that we want to get this kind of functionality into your hands and get as much feedback on it as we can. FYI, we also are hard at work on some CF-specific Flex Builder 2 productivity extensions that should dramatically increase the productivity of RIA construction for CF customers, and make the leap to RIA development for CF customers new to RIA with Flex2 a super easy, fun and productive experience, but more on that later :) Questions: - Do you think you can use the pub/sub functionality as described? - How do you envision a CFC backend to Flex2 Data services? -- Tom Jordahl Adobe ColdFusion Architect --- In [email protected], Vinny Timmermans <[EMAIL PROTECTED]> wrote: > > Hi David, > > I am working on an Flex 2 /CFMX7 Enterprise project and my main concern at > the moment is whether the Flex Enterprise Gateway beta for CF, announced at > MAX, will be released at the same time as the Flex Enterprise Services beta. > In other words, can we get our hands dirty connecting the new Flex 2 > Dataservices with CFMX 7 Enterprise in a straightforward way in 3-5 weeks? > > Best, > > Vinny > > > _____ > > From: [email protected] [mailto:[EMAIL PROTECTED] > On Behalf Of David Mendels > Sent: woensdag 4 januari 2006 22:15 > To: [email protected] > Subject: RE: [flexcoders] Beta Flex 2 release Date? Any one for a > Guess > > > Hi all, > > Good to hear you are eager. The team is hard at work. The next beta will > be a big leap forward. I am not going to give a specific date or commit to > anything...we need to make sure the beta is ready before we ship it, but I > would expect it in 3-5 weeks. NO guarantee. > > In the meantime, I'd love to hear more about what kinds of projects you are > working on for Flex 2, were you using Flex 1.X or is this your first Flex > project, nature of team, high level impressions, concerns, etc. > > Regards, > David > Adobe > > > _____ > > From: [email protected] [mailto:[EMAIL PROTECTED] > On Behalf Of Jose (DSM) Lora > Sent: Wednesday, January 04, 2006 3:34 PM > To: [email protected] > Subject: RE: [flexcoders] Beta Flex 2 release Date? Any one for a > Guess > > > > Same here, I have a development team waiting for that Beta > > > > > _____ > > > From: [email protected] [mailto:[EMAIL PROTECTED] > On Behalf Of sufibaba > Sent: Wednesday, January 04, 2006 2:15 PM > To: [email protected] > Subject: [flexcoders] Beta Flex 2 release Date? Any one for a Guess > > > > Hi All, > > Can anyone give an estimate on when Flex 2 will be released? It > doesn't have to be a final word, just an approximate time. We are > working on a Flex 2 project that is being slowed to a halt do the many > bugs in Flex Alpha. > > Sincerely, > > Tim -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! 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