> I have a BusinessDelegate for each as well with a method for each
method on the CFC.
On second thought that sounds better than what I suggested. :-)
Douglas
Steve House wrote:
>
> I do have a service for each CFC.
> I have a BusinessDelegate for each as well with a method for each
> method on the CFC.
>
> Ex:
> public class EmployeeDelegate
> {
> public function EmployeeDelegate( responder : Responder )
> {
> this.service =
> ServiceLocator.getInstance().getRemoteObject("employeeService");
> this.responder = responder;
> }
>
>
> public function readEmployeeByUsername(sUsername:String) : void
> {
> var call : Object = service.readEmployeeByUsername(sUsername);
> call.resultHandler = responder.onResult;
> call.faultHandler = responder.onFault;
> }
> private var responder : Responder;
> private var service : Object;
> }
>
>
> On 12/6/06, *Douglas McCarroll* <
> [EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> If I understand correctly (newbie speaking) you'd have:
>
> - A service specified on ServiceLocator for each of your CFCs
>
> - A BusinessDelegate for each method that you'll be calling
>
> Steve House wrote:
> >
> > Hank,
> >
> > Thanks for your reply. I am not sure I am explaining this correctly
> > but let me try adding these details and see if this helps. My
> backend
> > is ColdFusion and I have created Flex remote objects to several CFCs
> > that each correspond to a separate business object (not necessarily
> > one table). For example, I have an employeeGateway.cfc who's methods
> > all pertain to employees (e.g. readEmployeeById(),
> > readEmployeeByUsername(), addEmployeePermission()). From what I
> > understand I have to set up a remote object connection to each CFC
> > that I want to talk to. Although I could create a single CFC to
> group
> > together lookup table queries I prefer to keep them in their
> distinct
> > CFCs to allow for future methods related to those objects.
> >
> > Does this clear things up at all or am I still way off? Thanks again
> > for your help!
> >
> > Steve
> >
> > On 12/5/06, *hank williams* < [EMAIL PROTECTED]
> <mailto:hank777%40gmail.com>
> > <mailto:[EMAIL PROTECTED] <mailto:hank777%40gmail.com>>> wrote:
> >
> > Steve,
> >
> > You definitely shoud not have a business delegate for every lookup
> > table. I dont really understand the detail of what you explained in
> > your email, but communications between a client and a server should
> > never be as granular as mapping just directly to a table. Think of
> > communications with a server as asking high level questions like,
> "who
> > are my top spending customers this month". This might require access
> > to several tables. This calculation work should be done on the server
> > and the results should then be delivered from the server to the
> > client. The client should generally not be taking the results of
> > several table searches and intersecting, joining, merging or anything
> > of the sort. That is really server side work.
> >
> > Regards,
> > Hank
> >
> >
> >
> > On 12/5/06, stevehousefl <[EMAIL PROTECTED]
> <mailto:cyberdust%40gmail.com>
>
> > <mailto:cyberdust% <mailto:cyberdust%25> 40gmail.com
> <http://40gmail.com>>> wrote:
> > > Douglas (and all),
> > >
> > > Since they are not dependent on each other, I went with just
> having a
> > > single command fire 6 new events. I will look into the MacroCommand
> > > though.
> > >
> > > As far as the 6 different datasources, it is not. Perhaps this is
> > > incorrect, but I have a business delegate for each lookup table
> and a
> > > service (remote object) for each Coldfusion component that I am
> > > talking to.
> > >
> > > For example:
> > >
> > > My EVENT_LOAD_CONTROL_PANEL executes the
> LoadControlPanelDataCommand
> > > The LoadControlPanelDataCommand fires the EVENT_READ_ALL_QUEUES
> > (and 5
> > > other events)
> > > The EVENT_READ_ALL_QUEUES executes the ReadAllQueuesCommand
> > > The ReadAllQueuesCommand creates a QueueDelegate and executes
> > > QueueDelegate.readAllQueues()
> > > The QueueDelegate creates an instance of the ServiceLocator and
> > > executes .getRemoteObject("queueService")
> > > The queueService is configures in Services.mxml as
> > >
> > > <mx:RemoteObject
> > > id="queueService"
> > > destination="ColdFusion"
> > > source="CF.queueHandler"
> > > showBusyCursor="true"
> > > result="event.token.resultHandler( event );"
> > > fault="event.token.faultHandler( event );"/>
> > >
> > > Does this make sense????
> > >
> > > Thanks,
> > >
> > > Steve
> > >
> > >
> > > --- In flexcoders@yahoogroups.com
> <mailto:flexcoders%40yahoogroups.com>
> > <mailto:flexcoders% <mailto:flexcoders%25>40yahoogroups.com
> <http://40yahoogroups.com>>, Douglas McCarroll
> > > <[EMAIL PROTECTED]> wrote:
> > > >
> > > > Hi Steve,
> > > >
> > > > I'm going to take a stab at this as I've been studying the
> Command
> > > > pattern (as defined in GoF) and Cairngorm lately. In fact I'll be
> > > > presenting on the subject here in Boston tomorrow evening, so
> > this is
> > > > right up my alley. (www.bfpug.us <http://www.bfpug.us> <
> http://www.bfpug.us <http://www.bfpug.us>>) :-)
>
> > > >
> > > > > how do you handle 6 different results since there is only 1
> > > > > onResult function.
> > > >
> > > > I think that the answer here is "you don't". :-)
> > > >
> > > > Cairngorm has a SequenceCommand which has:
> > > >
> > > > public var nextEvent : CairngormEvent;
> > > >
> > > > You can then call its executeNextCommand() from your result()
> > method
> > > > which launches that event.
> > > >
> > > > This will work well enough if you need results from command_1
> > before
> > > you
> > > > make the service call in command_2, which you need before
> > command_3,
> > > etc.
> > > >
> > > > On the other hand, if that's not the case, what to do?
> > > >
> > > > The Gang Of Four chapter on the Command pattern describes a
> > > MacroCommand
> > > > that executes a number of (Simple)Commands. As described it
> > seems to
> > > > simply fire them off, one after another. Wouldn't be hard to
> > roll your
> > > > own, extending ICommand, with an array property, and passing in
> > Command
> > > > objects.
> > > >
> > > > I could even see creating an MacroEvent class that kept track of
> > > whether
> > > > its Commands had finished and that then did something when
> all were
> > > > finished.
> > > >
> > > > Other Cairngorm programmers, wiser than I, will probably ask
> > you wise
> > > > questions about why you wish to pull data from six different data
> > > > sources... :-)
> > > >
> > > >
> > > > Douglas
> > > >
> > > >
> > > > -------------------------------------------------
> > > >
> > > > Douglas McCarroll
> > > >
> > > > CairngormDocs.org Webmaster
> > > > http://www.CairngormDocs.org <http://www.CairngormDocs.org>
> < http://www.CairngormDocs.org <http://www.CairngormDocs.org>>
> > > >
> > > > Flex Developer
> > > > http://www.brightworks.com <http://www.brightworks.com> <
> http://www.brightworks.com <http://www.brightworks.com>>
> > > > 617.459.3840
> > > >
> > > > -------------------------------------------------
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > stevehousefl wrote:
> > > > >
> > > > > I have a command that I would like to have pull lookup data
> > from 6
> > > > > different BusinessDelegates. Should that one command call all 6
> > > > > delegates or should it fire 6 new events that call 6 new
> > commands?
> > > > >
> > > > > If the one command should call all 6 delegates in its execute
> > > > > function, how do you handle 6 different results since there
> > is only 1
> > > > > onResult function.
> > > > >
> > > > > I am using Cairngorm 2.1.
> > > > >
> > > > > Thanks in advance,
> > > > >
> > > > > Steve
> > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > > --
> > > Flexcoders Mailing List
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