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Student Follow up Questions

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Student Follow up Questions
Answer
9/10/07 6:38 PM
Hi,

Can you help provide resonses to the following questions from one of my CVP students (they are a Cisco partner who is providing consulting services to a large Cisco customer in LA).

Also, now that Cisco folks don't get to post questions on the General Forum, where should they go for answers to these types of thing? Is Cisco considering creating a Forum for their CVP Studio developers/customers?


1. We are sending Customer ID and PIN to a DB and they will send back a 580byte file in 78 variables (data set). We will use a Java applet to place all 78 of these pieces of data into 78 Session Data Variables. Do you see any issue with this? Is there a functional limit to how many variables we should put in Session Data - I believe it is more related to JVM memory and workspace, but if there is an issue you are aware of in doing this it would be helpful.

2. In this app so far there are 19 pages with 4 main groups or initial selections. Is there a best practice guideline from what you are aware to determine if an additional App is preferable to additional pages. I was thinking if there is a guideline such as "pages first and app if you must" sort of a thing.

3. As things come up that we did not necessarily cover in class, it would be helpful to see how someone else would have done it as well as the overall approach. Is there any kind of forum for posting questions or sharing code?
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RE: Student Follow up Questions
Answer
9/12/07 1:29 AM as a reply to Janine Graves.
Hi Janine

1. This question was asked via another channel lastweek... By adding large amount of data to the session will increase the per session footprint in the JVM. Also as session size increase the number of concurrent session decreases. This also means that JVM garbage collection will occur more often, and therefore, more load on the system and the performance suffers. There is no real way to predict the impact other then to prototype the app and execute performance tests.

2. The rule of thumb for pages vs. apps is to break up the application down to logical units. If an unit can/will be reused by other apps, then it make sense to create multiple apps. However, there is more overhead in passing from app to app. So if a caller is expected to take a limited call path, then you should try to contain it to a single app, unless development of a very large app becomes an issue.

3. Currently for CVP customers, there is no developer forum. Things are in the works, but are a long way from completion. As for code sharing, we will not provide that for CVP customers b/c of support issues.

Regards,
Cheng
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