nested:iterate -- property accessor called multiple times

[Gary Bartlett <ga...@yahoo.com>]

I have the following tag in my page:

   <nested:iterate property="pageItems">

I notice that the accessor method for pageItems, is
called not only when starting the iteration but also
once for each of the enclosed nested:xxxx tags.

Is this expected behavior ?  The reason I ask is that
I have code that I would only like to execute once to
set up the current values for "pageItems".  I could
initialize the collection that backs up pageItems to
null, and only execute my code when it is null - but
if I do that I am not sure where I can reset the value
to null after the iterate completes.  

For what it is worth, my form bean is defined as
session scope, so I can save state while the user is
interacting with the form.

Gary Bartlett

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