Small OO database

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visionset - 10 Apr 2007 17:58 GMT

I would like to learn of small OO database implementations that are
opensource or at least free. At the moment I'm looking at HSQLDB & Apache
Derby and then hooking them up to Hibernate. But this produces an excessive
3MB+ plus my data. And Hibernate is a bit overkill really for my needs.
Is there anything out there thats worth investigating?

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Mike W

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visionset - 10 Apr 2007 18:09 GMT

>I would like to learn of small OO database implementations that are
>opensource or at least free. At the moment I'm looking at HSQLDB & Apache
>Derby and then hooking them up to Hibernate. But this produces an
>excessive 3MB+ plus my data. And Hibernate is a bit overkill really for my
>needs. Is there anything out there thats worth investigating?

To add, I need to embed it in my Java desktop application and the licensing
needs to be such that my software doesn't have to be open source.

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Mike W

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Doug Morse - 10 Apr 2007 19:42 GMT

Hi,

If working in Python is an option, you might wish to consider ZODB.
It is an OO database implemented in Python for Python that underlines
the Zope and Plone web application servers (primarly content
management frameworks, CMFs). My understanding is that it supports
transactions with rollback and versioning, among other things, and I
believe it's free to embed in other apps, but you'll need to check to
be sure. I think that there are also file-system like implementations
for accessing objects in the ZODB.

Hope this helps.

Doug

> I would like to learn of small OO database implementations that are
> opensource or at least free. At the moment I'm looking at HSQLDB & Apache
> Derby and then hooking them up to Hibernate. But this produces an excessive
> 3MB+ plus my data. And Hibernate is a bit overkill really for my needs.
> Is there anything out there thats worth investigating?

doug morse | research scientist | vanderbilt university | http://edoug.org/dm

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visionset - 10 Apr 2007 20:16 GMT

> Hi,
>
[quoted text clipped - 6 lines]
> be sure. I think that there are also file-system like implementations
> for accessing objects in the ZODB.

No it must have a Java API. I don't need transactions though.
Seems like there's an awful lot of abandoned projects over recent years.
--
Mike W

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Arne Vajhøj - 11 Apr 2007 02:05 GMT

> If working in Python is an option,

That is a rather long shot in c.l.java.databases ...

Arne

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Arne Vajhøj - 11 Apr 2007 02:03 GMT

> I would like to learn of small OO database implementations that are
> opensource or at least free. At the moment I'm looking at HSQLDB & Apache
> Derby and then hooking them up to Hibernate. But this produces an excessive
> 3MB+ plus my data. And Hibernate is a bit overkill really for my needs.
> Is there anything out there thats worth investigating?

If you mean OO DB then http://www.db4o.com/community/
would be worth considering.

Arne

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Small OO database

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