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https://issues.apache.org/jira/browse/POLYGENE-95?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15941673#comment-15941673
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Niclas Hedhman commented on POLYGENE-95:
----------------------------------------

This is a very ambitious change, so although it makes the internal a lot 
simpler, it isn't simple to implement it, due to the large number of infliction 
points. So, I have dropped it for 3.0... and perhaps it should be dropped 
altogether.

> Entity = Identity + Value
> -------------------------
>
>                 Key: POLYGENE-95
>                 URL: https://issues.apache.org/jira/browse/POLYGENE-95
>             Project: Polygene
>          Issue Type: Sub-task
>            Reporter: Niclas Hedhman
>
> By viewing an Entity as a composite of an Immutable Identity and a single 
> Value, we end up with easier transactional semantics, and a generic "Merge" 
> facility could be created.
> For Entities with a lot of properties, where only a small number change each 
> time, we would recommend that the static part and the dynamic part are 
> implemented as two sub-entities, or a main entity with all static bits and a 
> sub-entity with the changing data.



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