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https://issues.apache.org/jira/browse/ISIS-14?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416012#comment-13416012
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Andy Jefferson commented on ISIS-14:
------------------------------------

Hi Dan, just coincidence, going through all issues in Apache JIRA that mention 
"DataNucleus"; hadn't noticed you'd started on it :-) Only thing to add is that 
while DN 3.1 is imminent (which implements JDO3.1 as well as all earlier 
versions), the JDO 3.1 API (provided by Apache JDO) will likely take longer and 
you can safely build against JDO 3.0 API since very little is changed API wise 
between v3.0 and v3.1 of the API. If you have any questions around getting this 
implemented, mail me at {firstname} AT datanucleus DOT org. Thx
                
> Add JDO 3.1 object store in order to support any datastore
> ----------------------------------------------------------
>
>                 Key: ISIS-14
>                 URL: https://issues.apache.org/jira/browse/ISIS-14
>             Project: Isis
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Matthew T. Adams
>            Assignee: Dan Haywood
>             Fix For: 0.3.0-incubating
>
>
> Given that JDO's charter is to be datastore-agnostic, a JDO object store 
> should be high on the list.  It supports both relational and non-relational 
> databases, including object databases, NoSQL data stores and **literally** 
> anything else.
> By leveraging the plugins of DataNucleus, the Apache-licensed open source JDO 
> reference implementation, the following object stores below can be supported 
> out of the box.
> RDBMS (all major vendors)
> DB4O
> LDAP
> Excel
> XML
> Neodatis
> JSON
> ODF
> HBase
> See http://www.datanucleus.org/plugins/ for more info.
> Google's BigTable could also be supported thanks to their Google AppEngine 
> for Java persistence solution, which is a DataNucleus plugin, enabling Isis- 
> & JDO-based apps to run on GAEJ.
> Note that DN also supports Joda & javax.time datetime types as well.

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