Re: [Junk E-Mail - LOW] [flexcoders] Re: Choice of backend systems - which provides
A webservice commonly does this: * authentication (optional) * a service/method is invoked with an optional set of arguments * the service returns a result Why not abstract your service system to allow SOAP + REST + XML-RPC + JSON + AMF ? As long as the interface is abstracted, it doesnt matter anymore and for every problem you can pick the best tool for the job.. Evert Dustin Mercer wrote: Something I have done in the past is to create a hybrid solution. One of the biggest advantages of Web Services is of course its ability to be consumed by just about everything. That being said, Java can consume web services! I have found creating Web Service Facades that FDS connects to can keep both sides happy. You get the performance of AMF to the client side, and you get to keep your services in one central location (as long as you don’t try to recreate business logic in java, just make it the middle man). One definite downfall is your J2EE server will do the parsing and translation of the web services (this can impact all users as the system scales if the server isn’t very powerful, or the services are poorly designed), as well as the consumption of services in java isn’t always the easiest thing. On the flip side of that your java server can also do the exception handling and send better exceptions to the client side. This may be a good middle ground for those searching for the benefits of both. Dustin Mercer -- www.rooftopsolutions.nl -- 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 * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Junk E-Mail - LOW] [flexcoders] Re: Choice of backend systems - which provides
You are forgetting that if a request takes half the time to complete, it needs less cpu time and you can double the concurrent requests per server. Evert Dave Wolf wrote: I simply have to disagree here. We can demonstrate several in production applications which we have developed using SOAP XML WebServices and they perform like a champ. One of them was the runner up for last years MAX award. The majority of the applications we develop use this architecture and to date not a single time has a client nor a user complained about the performance of runtime data services based on SOAP. There are a few false rumors that continue to creep up in the Flex community about the performance issues around SOAP. There are benchmarks which show that AMF can be drastically faster than a SOAP call for the same data. Sometimes even 100% faster. Yup that's true there are. But you have to peel away the layers of the onion to see the reality. Statistics can be misleading. For instance, if AMF is 300 milliseconds and SOAP is 600 milliseconds the 100% difference isnt even relative. How many people do you know who can even see 1/3 of a seconds difference? In the end raw marshalling isnt the issue, it is the user and their experience. Flex2 made DRASTIC improvements it the performance of XML parsing and in our own benchmarks the delta between the two services choices is often as low as 10%. Of a much greater impact that the marshalling time is the UI shredding and binding of the data. Most badly performing RIA's suffer from data being returned from the back-end in a format that holds no fidelity with the RIA. This requires the RIA to tear apart the returned structural data and place it into its own structures and objects and bind those to UI controls. Developing your user experience in a front-to-back approach which assures great fidelity between the data formats of the tiers can account for an order of magnitude performance increase. That is the kind of performance increase users will actually experience. There are many other very smart things you can do like extending existing controls to do streaming rendering of data to provide the perception of speed, server side paging, caching, etc. In the end perception is reality. All that matters from the UI perspective is the experience that the user has. Worring about 300 milliseconds is like trying to debate the number of angels that could dance on the end of a pin. If the user can't see them, it doesn't matter how many there are. The running rumor that you simply cannot develop first class RIAs in Flex using a SOAP web services back-end is simply not accurate, and we have the apps in production with our clients to prove it. -- 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 * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Flex 2 and document encryption
Using https would be a good way.. that way everything will happen on a much lower level.. Evert Wally Randall wrote: Does anyone know of action script functions capable of encrypting documents on the client prior to upload to the server? -- 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! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Re: xml framework
I have some test scripts that do that in PHP.. It's still in an untested beta phase.. If you want to see some code or discuss it, drop me a line.. Evert Suzy Lawson wrote: Sorry, for clarification, I'm very familar with the Cairngorm framework. This would be *completely* outside of it. This XML framework would handle solely converting xml to objects and vice versa. In my mind, the xml framework would be called from the Command class of caingorm before calling URLLoader --- In flexcoders@yahoogroups.com, Suzy Lawson [EMAIL PROTECTED] wrote: I'm building a Flex 2 app that has all incoming/outgoing data as XML (custom structured...not like an RSS for example). The XML requires namespaces and will likely have changes in structure. There will be multiple incoming XML formats (e.g, Product, Customer, Contact, Calendar Entry). With that said, it seems I need to build a framework to handle incoming XML, forward it to the correct handler to transfer the data to it's related typed class, and add the typed class to the view. The framework will also re-create the XML before sending the request. Should be easy with E4x. Seems straight-forward enough but seems odd there doesn't seem to be any documentation or existing frameworks that completely abstract the xml layer from the UI. Being a java developer, I look forward to writing it (and posting it publicly)...just want to make sure I'm not re-inventing the wheel. Seems like a common need that no one has addressed. If people are using the returned XML as your data object in the view, it could be cumbersome to fix in all the views if the structure changes. -- 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 SPONSORED LINKS Web site design development Computer software development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
Re: [flexcoders] Re: Large XML Dataset?
Lets say... you have 10 records, aa ab ac ad ae ba bb bc bd be you could create an xml file which tells you all records that start with a* can be fetched from a.xml but yea, this is overly simplified. Well, in short.. see where you can split up your xml and if its needed create a central xml file telling where which records can be found... Evert wayneposner wrote: --- In flexcoders@yahoogroups.com, Evert | Collab [EMAIL PROTECTED] wrote: Is there any chance you can split up the xml in multiple categories. Or maybe with a 'global xml index' of some kind? Evert Could you please explain what you mean by global xml index? Wayne -- 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! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [flexcoders] Large XML Dataset?
Is there any chance you can split up the xml in multiple categories. Or maybe with a 'global xml index' of some kind? Evert wayneposner wrote: I've been searching and searching, but haven't been able to find the answer, so I'm posting here as a last resort. I am working on a Flex application that must read in a fairly large XML file (1.5 to 3 megs depending).If I were to base my application off of the flexstore example, I'd just open up the XML file and try to read in everything. This works fine for 500- 1000 records, but, unfortunately, has some pretty nasty effects when dealing with about 12000 thumbnails. When it comes to reading XML I'm not sure of e4x, object, or XML is the most efficent result set. Regardless...is there a way to open the XML file, but not read from it until a user enters a search and then only return nodes from the XML which match the search? Basically, I want to use the XML file as sort of a virtual database. The reason I have to go this route is that the application will be delivered via CD and is meant to run as a desktop application. Thanks! Wayne -- 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! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
