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From David Smith <d...@cornell.edu>
Subject Re: Concept for modeling hierarchical data
Date Tue, 10 Jan 2006 13:23:41 GMT
Florian Lindner wrote:

>Hello,
>I'm searching for the best concept of how to use and save hierarchical data.
>I have a structure like PC file system with meta data. There a folder objects 
>and files objects of different types. Every object have data like 
>permissions, date and author. And they have type-specific data fields like 
>resolution (of an image type) or location (of an meeting type) or ingredients 
>(of an recipe type).
>What is the best way to store that kind of data? What database is 
>recommendable? What concepts of persistance? Or not using managed persistance 
>and do it manually?
>
>Thanks for all ideas!
>
>Florian
>
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>  
>
There is also JSR-170 which defines an API for storing data 
hierarchically.  The Jackrabbit project is one implementation of it and 
currently used in the Magnolia CMS.

JSR-170 spec: http://www.jcp.org/en/jsr/detail?id=170
Jackrabbit project: http://incubator.apache.org/projects/jackrabbit.html
Magnolia CMS: http://www.magnolia.info

--David

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