[Springframework-developer] child context lookups

[Keith D. <ke...@in...>]

I have a question about context hierarchy.

 

I've run into a situation where I have a "delegating bean" (a singleton) in
a parent context, making a lookup to a delegate instance in a flow-scoped
child context.  For transparency, the delegating bean and the delegate share
the same bean name.

 

This sounded fine to me, but I was greeted by a StackOverflowError within
the delegating bean implementation when it tried to lookup the delegate.
This happened because instead of getting the delegate, I got a reference
back to the delegating object itself.  In other words, when it queried the
child context, the bean in the parent was returned, not the one in the
child.  I would've thought this to be the other way around - querying the
child context would result in first its registry being checked, and then if
no bean was found a call to the parent?

 

Another, unreleated issue I am having is the ClasspathXmlApplicationContext
and related implementations are not serializable.  Is there any reason that
this is not supported?  In my case I have transactional state managed in a
flow-scoped context - it'd be nice if I could serialize the entire context
out for reconstruction of that state at a later point to facilitate server
restarts, for example.

 

Keith