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https://issues.apache.org/jira/browse/POLYGENE-103?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niclas Hedhman updated POLYGENE-103:
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Description:
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.
was:
Over the years we have several times tried to figure out how to incorporate ORM
technology to Zest, 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 Zest 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 Zest Entity structures to always have a reasonable SQL structure.
I.e. SQL schema rules the Entities. 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 Zest
entities and values.
NOTE: This is ONLY about EntityStore and not about generic query.
> ORM system
> ----------
>
> Key: POLYGENE-103
> URL: https://issues.apache.org/jira/browse/POLYGENE-103
> Project: Polygene
> Issue Type: New Feature
> Reporter: Niclas Hedhman
>
> 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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