SingleThreadModel

[Chris Salivar]

If a servlet implements the SingleThreadModel interface then will the instance variable of the servlet be thread-safe?
TIA
- Chris

[Phil Hanna]

Yes, but it's almost always a poor design to do this. Why do you need instance variables to be persistent? An HTTP session is a much cleaner way to do this. SingleThreadModel does not scale well.
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Phil Hanna
Sun Certified Programmer for the Java 2 Platform
Author of :
JSP: The Complete Reference
Instant Java Servlets

[Tony Alicea]

Yes. That's what implementing the model entails.
I am leaving out (since you didn't ask) the details of how a Servlet engine would implement http://java.sun.com/j2ee/j2sdkee/techdocs/api/javax/servlet/SingleThreadModel.html such model.
An I agree w/Phil, BTW.