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a few interview questions

manish ahuja
Ranch Hand

Joined: Oct 23, 2003
Posts: 312

1)What's a better approach for enabling thread-safe servlets and JSPs? SingleThreadModel Interface or Synchronization? Should I use the SingleThreadModel interface or provide explicit synchronization to make my JSP pages and servlets thread safe?

2) Is there a way I can set my servlets to do thread pooling? Can I spawn a background thread from my servlet?
3) When building web applications, what are some areas where synchronization problems arrise?
Harsha Huddar

Joined: Oct 03, 2003
Posts: 23
1) Synchronisation is better as implementing SingleThreadModel is not fully thread safe.(Multiple threads can still access static variables)
SingleThreadModel is deprecated in Servlet2.4 spec and you are suggested to stop using this interface.
danny liu
Ranch Hand

Joined: Jan 22, 2004
Posts: 185
a. Class variable
b. instance variable
c. session data
d. application data
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com
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