Re: SOT Flash Remoting Help
Dick, I am doing something similar. I take the data retrieved from the server and store it in an array who's keys are populated with a structure containing each record. You could, I guess, also just store the recordset within each key in the array. Personally preference.This complex data is stored in the shared object scope of flash (flash cookies). Which works very nicely for storing complex data. Each record within the array contains a 'lastmodified' date. Each record on the server, in the DB, also has a last modified date. So each time flash run's it: 1) Looks for the shared object, if it does not exist it creates it. 2) creates a list/array of ID's and LastModified dates from the SharedObject Data 3) Call the remote method to getNewData(array_of_existing_data) 4) On the server side, all of the records forthe client are pulled from the DB, and there last modified dates are compared to the dates that were passed to the method. Any records with dates greater than the dates passed from flash are marked for retrieval. Also, any NEW data is also marked for retrieval. This data is then returned to flash 5) Flash looks at the returned data and updates the SO (shared Object) key's which have new/modified data and adds any new data returned to the array. Thats it... was that to general? You can also add an argument to the CFC method, like 'flush', which would return ALL data regardless of the lastmod dates... Brook At 02:21 PM 2/6/2004, you wrote: I have been working on my first real Flash app. It is a real-time stock portfolio display. Server side is a CFMX program that retrieves real-time quotes from another web site The real-time data is combined with (relatively) static data from an on-site database The server and client exchange data using Flash remoting 1) At the start of each day (or when the client logs on), the clients entire portfolio (static data) is transferred to the client and displayedin a grid (Flash dataGrid) 2) When the Market opens (or when the client logs on), initial real-time data for the client portfolio is sent to the client to populate the grid I have these 2 steps working -- a little slow, but they each only happen once per day per portfolio. 3) The next step is to transmit only the changes to the client, and update the grid, as quickly as tpossible. Here's where I could use some help/ideas. The way I see it, the Flash client will request changes from the server as whenever it can receive them (immediately after receiving the last changes) the server will maintain state and a have a copy of the data on each clientso the CFMX program can determine what has changed since the last changes were sent to the client -- so it can eliminate any unnecessary data to reduce bandwidth. I have implemented similar programs (including a version of this app) using _javascript_ and/or meta tag refresh to trigger the client to make repetitive requests to the server. What is the best way to do this in a Flash client? If anyone has an examples or can point me to a good reference it will be greatly appreciated. TIA Dick -- [ [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: SOT Flash Remoting Help
If you don't already have it, go buy Flash for Server Geeks.It will make your task a whole lot easier and should answer most of your present and future questions. http://www.flashforservergeeks.com/fsg/ -Cameron - Cameron Childress Sumo Consulting Inc --- land:858.509.3098 cell:678.637.5072 aim:cameroncf email: [EMAIL PROTECTED] -Original Message- From: Dick Applebaum [mailto:[EMAIL PROTECTED] Sent: Friday, February 06, 2004 2:22 PM To: CF-Talk Subject: SOT Flash Remoting Help I have been working on my first real Flash app. It is a real-time stock portfolio display. Server side is a CFMX program that retrieves real-time quotes from another web site The real-time data is combined with (relatively) static data from an on-site database The server and client exchange data using Flash remoting 1) At the start of each day (or when the client logs on), the clients entire portfolio (static data) is transferred to the client and displayedin a grid (Flash dataGrid) 2) When the Market opens (or when the client logs on), initial real-time data for the client portfolio is sent to the client to populate the grid I have these 2 steps working -- a little slow, but they each only happen once per day per portfolio. 3) The next step is to transmit only the changes to the client, and update the grid, as quickly as tpossible. Here's where I could use some help/ideas. The way I see it, the Flash client will request changes from the server as whenever it can receive them (immediately after receiving the last changes) the server will maintain state and a have a copy of the data on each clientso the CFMX program can determine what has changed since the last changes were sent to the client -- so it can eliminate any unnecessary data to reduce bandwidth. I have implemented similar programs (including a version of this app) using _javascript_ and/or meta tag refresh to trigger the client to make repetitive requests to the server. What is the best way to do this in a Flash client? If anyone has an examples or can point me to a good reference it will be greatly appreciated. TIA Dick [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: SOT Flash Remoting Help
Thanks Cameron I ordered the hard copy, but have been reading it online at O'Reilly Safari bookshelf. Very well done, but a little out of date (Pre Flash MX 2004 Professional) I am on chapter 4 and haven't found anything yet(that I understand well enough) to satisfy my need. What I need is kinda' like a Ticker -- but it's not! Or, kinda like a Chat -- but it's not! What I want is kinda' like a streaming client but,unlike a Ticker, the stage (grid) never moves-- only the values and colors of the cells will change. Unlike a chat, as soon as I get a packetof changes from the server, I want to request another, before processing this one-- no artificial delays to minimize traffic -- to the contrary, I want the client to request and consume data as often as it can. I currently am using 2 different streamer-fed client apps provided by a 3rd party. One is a Java applet, the other isawindows-only native app. Surprisingly, my own CFMX/HTML combination outperforms both.They look like they are performing faster/better and update cells more often but the data is less current During peak hours, these streamer apps will get behind 5-10 minutes I could rewrite my CFMX/HTML app to use DHTML and/or hidden frames to improve performance and provide a better UI. But Flash remotingseems to offer much better efficiency, UI, etc. Dick On Feb 6, 2004, at 5:02 PM, Cameron Childress wrote: If you don't already have it, go buy Flash for Server Geeks. It will make your task a whole lot easier and should answer most of your present and future questions.o request another http://www.flashforservergeeks.com/fsg/ -Cameron snip [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
Re: SOT Flash Remoting Help
I ordered the hard copy, but have been reading it online at O'Reilly Safari bookshelf. Very well done, but a little out of date (Pre Flash MX 2004 Professional) Are you sure it's the right book? My copy is entitled: Flash MX Professional 2004 for Server Geeks (http://www.amazon.com/exec/obidos/ASIN/0735713820/nateweisscom-20/103-55873 98-9313411) It definitely covers MX '04, etc. Perhaps you have an older edition? Regards, Dave. [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
RE: SOT Flash Remoting Help
As Dave pointed out, the only edition I am aware of is specifically written for Flash Professional 2004, but also includes some stuff for non-pro users. You might want to skip ahead to Chapter 8 Connecting to Servers with Flash Remoting.That chapter goes over data binding and lots of advanced Flash remoting concepts.Also relevant to what you are doing (probably) is Chapter 10 Flash and Sessions. -Cameron - Cameron Childress Sumo Consulting Inc --- land:858.509.3098 cell:678.637.5072 aim:cameroncf email: [EMAIL PROTECTED] -Original Message- From: Dick Applebaum [mailto:[EMAIL PROTECTED] Sent: Friday, February 06, 2004 5:42 PM To: CF-Talk Subject: Re: SOT Flash Remoting Help Thanks Cameron I ordered the hard copy, but have been reading it online at O'Reilly Safari bookshelf. Very well done, but a little out of date (Pre Flash MX 2004 Professional) I am on chapter 4 and haven't found anything yet(that I understand well enough) to satisfy my need. What I need is kinda' like a Ticker -- but it's not! Or, kinda like a Chat -- but it's not! What I want is kinda' like a streaming client but,unlike a Ticker, the stage (grid) never moves-- only the values and colors of the cells will change. Unlike a chat, as soon as I get a packetof changes from the server, I want to request another, before processing this one-- no artificial delays to minimize traffic -- to the contrary, I want the client to request and consume data as often as it can. I currently am using 2 different streamer-fed client apps provided by a 3rd party. One is a Java applet, the other isawindows-only native app. Surprisingly, my own CFMX/HTML combination outperforms both.They look like they are performing faster/better and update cells more often but the data is less current During peak hours, these streamer apps will get behind 5-10 minutes I could rewrite my CFMX/HTML app to use DHTML and/or hidden frames to improve performance and provide a better UI. But Flash remotingseems to offer much better efficiency, UI, etc. Dick On Feb 6, 2004, at 5:02 PM, Cameron Childress wrote: If you don't already have it, go buy Flash for Server Geeks.It will make your task a whole lot easier and should answer most of your present and future questions.o request another http://www.flashforservergeeks.com/fsg/ -Cameron snip [Todays Threads] [This Message] [Subscription] [Fast Unsubscribe] [User Settings]
