> I store my navigation system as a array of structures coverted to a WDDX packet. I don't want to rebuild the packet for each page request, so I'm thinking about storing the packet in the application, client or session scope. I have two questions > > 1). Is anyone storing WDDX packets in application,client, or session scope. If so, would you > please share your experience. > I think the general answer to that is. Why bother? Application and session scopes can handle complex data types, only client variables can't handle complex data. If you're accessing the navigation system on every page request, then if you use WDDX you would have to initially serialise your data, then de-serialise it for ever page request after that. Why not just store it in a session or, if its the same for every user of the application, in an application variable?
If you decide to use session variables then make sure you think about the scalability of your application. ie. if you need more servers in a cluster then you are restricted as to how you set up that cluster when using session variables. If you're using CF5 and lower, then you must remember to do cflocks on all your reads and writes to shared scope variables. If you're using CFMX or bluedragon, then you need not worry about locking, unless you expect a race condition to occur. > 2). What is the best way to get a complex data types like an array of structures of arrays from > the session scope to the request scope. > As long as you know the structure of your data you should be able to access the arrays and structures using bracket and dot notation in the appropriate order. Simple example... I have a query where I know the results will always contain 7 records and the information from these seven records has to be displayed in an unusual circular pattern on the screen which isn't easy to do by accessing the record from 1 through 7, so I just access the field from the query like this : #MyQuery.fieldname[1]# for fieldname in my query in the first row or #MyQuery.secondcol[7]# for secondcol in My Query in row 7. Hope that all makes sense and is help to you. Regards Stephen ______________________________________________________________________ This list and all House of Fusion resources hosted by CFHosting.com. The place for dependable ColdFusion Hosting. FAQ: http://www.thenetprofits.co.uk/coldfusion/faq Archives: http://www.mail-archive.com/[email protected]/ Unsubscribe: http://www.houseoffusion.com/index.cfm?sidebar=lists
