patterns newsgroup

[ptass]

I'm after a design pattern related to an object being able to know that it
has changed in some way ( based on a deep copy snap shot of its original
state ), and to iterate through its members and identify specifically what
has changed.

The object should be able to hold collections of other such objects, and to
be able to iterate through those and report changes at whatever level is
required.

Does anyone know if there is such a pattern ?

Does anyone know if there is a patterns newsgroup where this sort of
questions would be better placed. ?

[AMDIRT]

You'll want to read a bit on the the subject/observer pattern and the model
controller view pattern. These two speak most directly to what you are
asking. If you would like to see it in action check out IssueVision on
windowforms.com website. I am implementing this now in an application that I
am developing, the key is to truely understand what the goal of the
application is to best implement it.

HTH
http://msdn.microsoft.com/library/de...verpattern.asp

http://msdn.microsoft.com/library/de...tml/DesMVC.asp

"ptass" wrote:

I'm after a design pattern related to an object being able to know that it
has changed in some way ( based on a deep copy snap shot of its original
state ), and to iterate through its members and identify specifically what
has changed.

The object should be able to hold collections of other such objects, and to
be able to iterate through those and report changes at whatever level is
required.

Does anyone know if there is such a pattern ?

Does anyone know if there is a patterns newsgroup where this sort of
questions would be better placed. ?