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From Ole Ersoy <ole.er...@gmail.com>
Subject Re: Location of DAS effort?
Date Tue, 15 May 2007 20:07:00 GMT
Hey Alex,

Alex Karasulu wrote:
> Hi Ole,
> 
> Would you be adverse to moving the DAS effort over to Tuscany now where 
> it probably belongs?

The ball is rolling:

http://cwiki.apache.org/TUSCANY/ldap-das-java.html


> I'm fine with you hosting it here if you don't have commit access there 
> however I'd like to start
> answers your questions on the user@ mailing list without cluttering the 
> dev list with DAS specific
> information.  

Thanks and good point.  I think we'll have it cleared up soon.

> We can simply confront LDAP related issues on both the dev 
> and user list this way.
> 
> Either this or perhaps another ML might be in order if we decide to host 
> a OL (Object-LDAP)
> mapping project here.

Sounds good.

Cheers,
- Ole


> 
> WDYT?
> 
> Thanks,
> Alex
> 
> On 5/15/07, *Ole Ersoy* <ole.ersoy@gmail.com 
> <mailto:ole.ersoy@gmail.com>> wrote:
> 
>     Hi Weijian,
> 
>     In case you are still interested,
>     I'll be publishing a new revision
>     of the DAS LDAP Design Guide in a few days.
> 
>     This is written as a cook book for how
>     to write the DAS, so it should be fairly straight
>     forward to follow.
> 
>     Also - Apache Tuscany is very supportive
>     of this approach (We've had many discussions already)
>     and the project will
>     likely be moved into Tuscany as soon
>     as the initial implementation is complete.
> 
>     I could have a working implementation
>     right now that reads and writes data graphs,
>     but there are a few bugs in the ADS
>     Dynamic Schema capabilities that need to be cleared
>     first.  As soon as that's done I'll commit to
>     having an implementation that reads and writes SDO DataGraphs
>     within 10 days.
> 
>     Note that SDO DataGraphs are really XSD Instances
>     and SDO was designed to use XML Schema for Typing.
> 
>     Cheers,
>     - Ole
> 
> 
>     Alex Karasulu wrote:
>      > Hi Weijian,
>      >
>      > As others have already confirmed such a tool does not exist in
>      > totality.  There
>      > were some efforts out there with partial support for such
>     functionality.
>      >
>      > Spring LDAP (not really but handles some glue code)
>      > Hibernate LDAP (incomplete)
>      > Castor LDAP (some say it is complete but I have not tried it)
>      >
>      > BTW it would be nice to start such an effort here.  There are several
>      > interesting
>      > approaches one of which was mentioned by Stefan Zoerner regarding
>     he use of
>      > Object and State factories for JNDI.  I thought heavily about this a
>      > while back however
>      > there are some issues with using OF and OS namely in the area of
>      > managing references
>      > in an object graph.  I think the DAS stuff Ole spoke about has
>     potential
>      > however
>      > the timeline is unknown and we only have one person looking into
>     it at
>      > the moment.
>      >
>      > If enough people are interested I think we can find a solid approach
>      > with a visible
>      > timeline to implement such a Object-LDAP (OL) mapping tool.
>      >
>      > HTH,
>      > Alex
>      >
>      >
>      > On 5/10/07, *Weijian Fang* <wf@ecs.soton.ac.uk
>     <mailto:wf@ecs.soton.ac.uk>
>      > <mailto:wf@ecs.soton.ac.uk <mailto:wf@ecs.soton.ac.uk>>> wrote:
>      >
>      >     Hi,
>      >
>      >     Is there a tool to convert LDAP data to Java bean based on LDAP
>      >     schema? What I want is quite like what JAXB does on XML.
>     Given an XML
>      >     schema, JAXB is able to generate Java classes that translate
>     schema
>      >     compliant XML to Java beans and back. Now I have a LDAP
>     schema, and a
>      >     LDAP server where data complies with the scheam. I need to
>     read LDAP
>      >     data and conert to Java beans. I can do this manually. But if
>     there is
>      >     a tool able to automatically generate the code based on the LDAP
>      >     schema, it wiil be great!
>      >
>      >     Is there such a tool? Any hint? Thanks a lot!
>      >
>      >     Cheers,
>      >
>      >     Weijian
>      >
>      >
> 
> 

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