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:[EMAIL PROTECTED]>> 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>> 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>, 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>) :-) > > > > > > > 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> > > > > > > Flex Developer > > > 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 > > FAQ: > http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt > <http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt> > > Search Archives: > http://www.mail-archive.com/flexcoders%40yahoogroups.com > <http://www.mail-archive.com/flexcoders%40yahoogroups.com> > > Yahoo! Groups Links > > > > > > > > > > >
