MAXBloggers.net - Day 2: Sessions
Only two sessions today (I actually went to two others, but if you can't say anything nice about something...)
Enterprise RIA Infrastructure
- the “second” Flex talk, this one was intended to drill into server-side access, SOA, etc.
- me really starting to like what I've seen of Flex. For a great intro to it (unrelated to this talk) take a look at: http://www.macromedia.com/devnet/flex/articles/paradigm.html
- Flex apps communicate to server components via SOAP (may be others, but that's what he showed0
- possible methods:
- HTTPService (equiv to calling GET or POST to a WS)
syntax:
<mx:HTTPService id=““ url=“wsdl“>
<mx:Request>
<parmname>{parm reference}</parmname>
</mx:Request>
</mx:HTTPService>
call: id.method()
- Remote Object (access to a Java class - hopefully a .NET class once the .NET support is completed)
syntax:
<mx:RemoteObject id=““ type=“stateful or stateless“ src=“className“>
<!-- rest is the same -->
communication is via SOAP. Flex server calls Java class via Reflection
- Web Service
syntax:
<mx:WebService id=““ wsdl=““> <!-- then as before-->
- the equivalent of UserControls seems to be mx:View
- code - runs in Flash sandbox
- no local read/write, except for SharedObject
- no cross domain access
- can send policy file to enable, user can also enable
- server-side security
- server-side proxy enables cross domain calls to Web services by proxying the call
- can have a white-list of possible URLs clients can call
- can name a service, so all details (URL, pwd, other parms) are stored on server. Client simply calls “myService“
- leverages app server security
Rapid Development of Flash Presentations and Applications
- Flash MX 2004 makes the timeline optional, you can create presentations and form-based applications (timeline is still there, just hidden)
- does similar to master pages in that branch nodes (your app is built as a tree) apply their graphics/properties to leaf nodes
- does transitions, etc.
- can output to number of formats (swf, html, mov, etc.)
- slides & forms inherit from screen
- can create screens from code only
TTFN - Kent
PS: Tonight is the Olympic Skating Rink. As the only Canadian who neither skates nor curls, I think I'm just going for the beer (at least I'm that Canadian)
