On May 12, 2008, at 10:03 AM, David Avendasora wrote:
Yeah, it's giving me a queasy feeling too. Mix it in with Java
Client and it gets even more nauseating.
The basics of what I'm trying to do is I have Parts that each have
at least one BillOfMaterial Each BillOfMaterial has 0 or more
Components. These Components are each a certain quantity of another
Part and can themselves have a BillOfMaterial which may have more
components. These components can then have BOMs as well, and so on,
and so on. The structure is somewhat more complicated, but this
should give you a good understanding of what the issue is.
I am using an inner class to store Summerized Components which are
then stored in an array on the given Part. I don't want to persist
these objects as they are really a convenience so I don't have to
traverse the the object graph constantly. The first time it is
requested, if the components() array is null, it will generate them
by working it's way down through the object graph and summing up the
quantities, adjusting units of measure, etc. So in the end I have a
array of Components with the total quantity of each required to make
the given Part.
It seems to work, but since it just feels "icky", I wanted to run it
past the list in hopes of some validation or "are you bleepin'
nuts!?" type comments.
Well, that does not sound so back. JavaClient may throw a spanner
into it. What you are doing in caching expensive values in an EO. I
do that, it works. You just need to be careful to invalidate the
cache at the right time. This can be even tricker when multiple EOs
are involved.
Chuck
On May 12, 2008, at 12:41 PM, Chuck Hill wrote:
On May 12, 2008, at 1:34 AM, David Avendasora wrote:
Hi all,
Is it possible to use Inner Classes inside EOs? Since they are
Inner, are they automatically in the same EditingContext as the EO
they are inside of? I would think so, but I just want to make sure.
It would probably have access to the EC, but the EC would not have
it as a registeredObject. Not sure where you are going here, but
it is giving me a queasy feeling.
Chuck
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Practical WebObjects - for developers who want to increase their
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--
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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