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From moffit <mof...@gmail.com>
Subject Ibatis 3 - Lazy Loading and Serializable Sessions
Date Tue, 04 May 2010 01:25:05 GMT

Hi,

  I noticed that this question was asked a few years ago with Ibatis 2.X
without any resolution.

  Basically, lazy loaded objects are enhanced with byte-code generation. 
The enhanced object/proxy is not serializable even though the source object
is.  This obviously plays havoc with web applications if the source object
is stored in the session.  A very simple and probably often used scenario
would be a user object that contains a contact object which contains a
location, etc.., stored in the session after authentication.  Lazy loading
can be very useful in situations like this, but the session cannot be
serialized to disk by the container (e.g. Tomcat).  This negates clustering,
for one, thing, and is also a pain for development, as the context is often
reloaded due to code changes.  Without the serialization support, the
developer must plow through the entire log on and resulting work-flow to get
to the required web page again.

Are there any technical or architectural issues around making the enhanced
object serializable?  Has anyone else run into this problem?  Right now,
I've disabled lazy loading to allow the session to be serialized.

Thanks,

Mike
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