Hi
Can anyone briefly describe how concurrency is handled by the interceptors
or the container containing the interceptors? Here's a specific scenario
relating to LogInterceptor.
I've looked through the logging components and got a good idea of how they
call one another. However, I don't understand how "thread-safeness" occurs
in the method invoke(MethodInvocation) in LogInterceptor. There's a call to
Log.set(log), which pushes the local instance of Log onto the Log stack.
Then the work is done and the method ends with Log.unsetLog(). What if in
between the two calls, another component (or instance of LogInterceptor?)
pushes another instance of Log onto the stack, given that the stack in Log
is a static instance. Wouldn't that cause a problem then? I assume the
container prevents this somehow. Does anyone know how the "somehow" is done?
Thanks
Joseph
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