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From "Niclas Hedhman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (POLYGENE-95) Entity = Identity + Value
Date Sat, 25 Mar 2017 09:37:41 GMT

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

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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