Just wondering if the use of POCO's is associated with a particular design pattern.
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39answers:
2
A:
POCOs are usually mentioned in the context of persistence ignorance. It can be used to implement the Unit Of Work pattern.
- The Unit Of Work Pattern And Persistence Ignorance by Jeremy Miller
Mark Cidade
2010-10-21 03:57:55
Thanks Mark - I need to read the article properly, but at first glance it certainly looks like the 'right' answer.
Adrian K
2010-10-21 20:22:54
+1
A:
I think that POCOs and POJOs are examples of the Single Responsibility Principle (principles are something like design patterns but more general). Say Person POCO can have one reponsibility: storing person data, but for example, if we add persistence to POCO, it won't be POCO any more, and will have 2 responsibilities: storing person data and persisting it.
iirekm
2010-10-21 12:30:20
@iirekm - I agree a POxO needs to "embody" (?) SRP, and that adding persistence to it would void that. Beyond SRP, I was thinking there'd be some formal rules (in for form of a pattern) which made that sort of thing clear.
Adrian K
2010-10-21 20:21:50