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From "Niclas Hedhman (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (POLYGENE-103) Enterprisey SQL EntityStore
Date Sat, 28 Apr 2018 07:53:00 GMT

     [ https://issues.apache.org/jira/browse/POLYGENE-103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Niclas Hedhman closed POLYGENE-103.
-----------------------------------

> Enterprisey SQL EntityStore
> ---------------------------
>
>                 Key: POLYGENE-103
>                 URL: https://issues.apache.org/jira/browse/POLYGENE-103
>             Project: Polygene
>          Issue Type: New Feature
>            Reporter: Niclas Hedhman
>            Assignee: Niclas Hedhman
>            Priority: Major
>             Fix For: 3.1.0
>
>
> Over the years we have several times tried to figure out how to incorporate ORM technology
to Polygene, and kept failing. Hibernate was tried in 2007, and iBatis was attempted in 2008,
and although the latter showed some reasonable promise, it didn't manage to reach all the
way.
> We have since done a lot to let extensions into the runtime model, and we have more features
around Associations in Property and NamedAssociations which I don't think existed in those
days.
> I think it is time to re-open this effort, as it is the constant push-back whenever I
introduce Polygene to new people. It is an easy "ok, you don't have that, therefor I have
no interest in listening to you." and any other argument is ignored.
> I think it is more important to be able to use existing tables, than to support arbitrary
Polygene Entity structures to always have a reasonable SQL structure. I.e. for the companies
where SQL schema rules as data model supreme. Then from there we could investigate further
what full Mixin support would entail.
> Before starting the implementation, I think we should gather usecase and lay out in documentation
how various common schemas can be handled into Polygene entities and values.
> NOTE: This is ONLY about EntityStore and not about generic query.



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