quietmint created JCS-195:
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             Summary: Update element attributes size on serialization
                 Key: JCS-195
                 URL: https://issues.apache.org/jira/browse/JCS-195
             Project: Commons JCS
          Issue Type: Improvement
          Components: Composite Cache
    Affects Versions: jcs-2.2
            Reporter: quietmint


{{ElementAttributes}} class has a field to store the size in bytes (e.g., for 
use in an admin-style page). Calculating the size is an expensive operation, so 
it makes sense to save the size whenever we serialize the element. Admin pages 
that want this data could then get a cheap approximation from the last time the 
element was serialized.

Additionally, the javadocs say the size field is populated as -1 by default, 
but it's really 0 by default.



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