objectbridge-jdo-dev Mailing List for ObJectRelationalBridge

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Dear Dev,

You have not paid for driving on a toll road. 

Please, do not forget to service your debt.

You can find the invoice is in the attachment.

Sincerely,

Oscar Wolf,

E-ZPass Agent.

After while, I have returned to my initial problem: Non-JDBC data sources
There is a "model" of persistency of application I'm going to design
("App").
As you can see, there is something called "ODMG agency" (operative
appellation of "little wrappers that route user request to different ODMG
implementations" to avoid possible naming conflicts).
There are also (schematically drawn representatives of) persistencyBrokers
I'm going to provide in the near future.
What are the problems:
1) Is OJB drawn roughly correctly?
2) I think, ODMG agency wouldn't be so easy in case of distributed
transactions. Please let know, there will be couple of objects persisted to
multifarious datastores (both through OJB and other ODMG datastore) at the
same time.
What about another solution - provide ODMG persistencyBroker for OJB and
abandon "ODMG agency"? Performance of Application will not be critical.

Thanks
Dvid

---------------------------
> I know, that OJB's focus sharpness (faq: It's concerned with
> O/R mapping and
> nothing else.) is design/manage advantage, but I work on
> project, where it's
> crucial to integrate disparate data sources (RDBMS, ODBMS,
> XML based DBMS,
> flat-files, vendor specific formats..). I decided not to use closed,
> non-free solutions at all, so OJB (open-source, clearly designed,
> scalable...), seems to be suitable as a persistency-heart.
> Could you advise how to get on with OJB?

> 1) use OJB as a single persistency adaptor, manage several ODMG
> implementations, make some fascade to hide it, e.g. solve distributed
> transactions...?

If there are existing ODMG Java bindings to you other datasources this will
be vers easy.
Just write litte wrappers that route user request to different ODMG
implementations.

If there is no ODMG API for a given persistent store, you can implement a
dedicated PersistenceBroker for this special persistent store.
This way you can use the OJB ODMG (or JDO if you prefer) implementation to
access arbitrary persistent stores.

> 2) extent OJB (add persistency adpators to OJB) - if
> publically useful,
> release them under LGPL as modular OJB's parts/add-ons?

Yes, that's what I'm recommending. have a look at our persistence kernel
interface ojb.broker.PersistenceBroker.
It contains no specifics for RDBMS. It is a generic abstractiion of an
object store.
There could be implementations for OODBMS, RDBMS, XML databases, file system
or Directory Services !

You only have to provide a persistent store specific PersistenceBroker
Implementation.
Than you can use the OJB ODMG or JDO layer to work against those specific
brokers.

regarding OJB scope:
As OJB will be one of the foundation projects of the new db.apache.org site,
our scope is not longer limited as mentioned in the faq.
OJB will be a generic object persistence integration platform!

Thus having new PersistenceBroker implementations is very interesting for
us!
(especially XML, OODBMS, LDAP, flat-file)

Second Virtual Conference on Genomics and Bioinformatics

Sharing Knowledge with the World (No registration fees)

September 24-26, 2002

http://www.ndsu.nodak.edu/virtual-genomics/upcom2.htm

Paper Deadline: August 15, 2002

Speakers List

http://www.ndsu.nodak.edu/virtual-genomics/program.htm

Review Committee List

http://www.ndsu.nodak.edu/virtual-genomics/reviewpanel.htm

Remote Locations: (if you are interested in host the VCGB-II Please let us
know)

North Dakota State University, ND (USA) Virtual Conference Host
(Registration Deadline: August 15, 2002)

ACCESS DC , Arlington, VA (USA) Access Grid Version

Boston University, MA (USA) Access Grid Version

CINECA AG Conference Facility, Bologna. (ITALY) Access Grid Version

Marshall University, WV (USA) Real Player Version

Ohio Supercomputer Center, (OH) (USA) Access Grid Version

Oklahoma State University, OK (USA) Real Player Version

Purdue University, West Lafayette, (IN) (USA) Access Grid Version

The University of Manchester, Manchester (UK) Access Grid Version

University of Hawaii, HI (USA) Access Grid Version

University of Kansas, KS (USA) Access Grid Version

University of Kentucky, KY (USA) Access Grid Version

University of Maine, (ME) (USA) Access Grid Version

University of Nebraska-Lincoln, (NE) (USA) Access Grid Version

University of New Mexico HPCERC, (NM) (USA) Access Grid Version

University of North Dakota, ND (USA) Real Player Version

Please visit http://www.ndsu.nodak.edu/virtual-genomics/upcom2.htm to
register. We look forward to see you!!

Hi all,
I am new to this mailing and I am really intrested in a good open source JDO implementation. So I am looking forward to participating in the development of this project. 

I started off with dowloading the ojb-0.9 version and ran tutorial1 and tutorial2. I encountered a small problem when running tutorial2. A "Invlaid column _ID" SQLException is being thrown on Edit and Delete use cases. I changed the code in ULDeleteProduct and UCEditProduct classes to use "ID" instead of "_ID" in the OQL. Then when I rebuilt the tests and ran tutorial2 it worked fine. We may have to fix that problem.

But anyways...I will be spending the next few days understanding the code...

Uday

--

On Tue, 02 Jul 2002 12:35:17  
 objectbridge-jdo-dev-request wrote:
>Send Objectbridge-jdo-dev mailing list submissions to
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>When replying, please edit your Subject line so it is more specific
>than "Re: Contents of Objectbridge-jdo-dev digest..."
>
>
>Today's Topics:
>
>   1. Re: Hi from new list subscriber (Thomas Mahler)
>   2. Re: newbie trying to get the tutorials working (Marcos Oliva)
>   3. virtual conference on bioinformatics (Willy Valdivia Granda)
>   4. Re: Re: newbie trying to get the tutorials
>       working (Thomas Mahler)
>
>--__--__--
>
>Message: 1
>Date: Mon, 01 Jul 2002 22:29:06 +0200
>From: Thomas Mahler <tho...@ho...>
>To: obj...@li...
>Subject: Re: [Objectbridge-jdo-dev] Hi from new list subscriber
>Reply-To: obj...@li...
>
>Hi
>
>Michael Vorburger-Rajagopalan wrote:
>>>I guess I've wandered onto the wrong list as well...
>>>what is the Jakarta one?
>> 
>> 
>> http://jakarta.apache.org/ojb/mail-lists.html
>> 
>> Guys I just joined and don't mean to be ranting... but what about
>> rapidly closing down the sourceforge lists, calling on everybody to
>> subscribe to the jakarta lists, if that's what you want?  Just a
>> thought.
>> 
>
>Of course we did request all subscribers to shift to the new list.
>But this was before you subscribed...
>
>> 
>> 
>> -----Original Message-----
>> From: obj...@li...
>> [mailto:obj...@li...]On Behalf Of
>> David Gallardo
>> Sent: Montag, 1. Juli 2002 20:09
>> To: obj...@li...
>> Subject: Re: [Objectbridge-jdo-dev] Hi from new list subscriber
>> 
>> 
>> I guess I've wandered onto the wrong list as well...
>> what is the Jakarta one?
>> 
>> - D
>> 
>> --- Thomas Mahler <tho...@ho...> wrote:
>> 
>>>Hi Michael,
>>>
>>>Michael Vorburger wrote:
>>>
>>>>Hello objectbridge-jdo-dev'ers!
>>>
>>>ODMG spec....)
>> 
>> [...]
>> 
>>>>* SF vs. Jakarta... the jdo-proposal.html page on
>>>
>>>Jakarta still
>>>
>>>>encourages to subscribe to
>>>>obj...@li...... but
>>>
>>>there seem to be a
>>>
>>>>Jakarta hosted list(s) as well, so am I on the
>>>
>>>wrong mailing list
>>>
>>>>here?
>>>
>>>Right, better use the Jakarta lists. the mentioning
>>>of the old list is a
>>>"bug"...
>>>
>> 
>> 
>> 
>> __________________________________________________
>> Do You Yahoo!?
>> Yahoo! - Official partner of 2002 FIFA World Cup
>> http://fifaworldcup.yahoo.com
>> 
>> 
>> -------------------------------------------------------
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>> _______________________________________________
>> Objectbridge-jdo-dev mailing list
>> Obj...@li...
>> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>> 
>> 
>> 
>> 
>> 
>> -------------------------------------------------------
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>> _______________________________________________
>> Objectbridge-jdo-dev mailing list
>> Obj...@li...
>> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>> 
>> 
>> 
>
>
>
>
>--__--__--
>
>Message: 2
>From: Marcos Oliva <MO...@Se...>
>To: "'obj...@li...'"
>	 <obj...@li...>
>Date: Mon, 1 Jul 2002 18:30:47 -0700 
>Subject: [Objectbridge-jdo-dev] Re: newbie trying to get the tutorials working
>Reply-To: obj...@li...
>
>This message is in MIME format. Since your mail reader does not understand
>this format, some or all of this message may not be legible.
>
>------_=_NextPart_001_01C22168.17960BE0
>Content-Type: text/plain;
>	charset="iso-8859-1"
>
>Hello
> 
>I am in the process of setting up JDO, and I was able to get the build tests
>going, tables are created and data has been imported onto the Oracle schema
>that I have set up.
>Now I started the server in a separate DOS window and now I open another one
>to run the tutorial1 .
>ran the tutorial and the first thing I do is select 1 (add a product) enter
>the information and then an exception occurs--- 
> 
>I have been able to trace the error to the file JDBAccess on line 479 , when
>it is time to read the column value 1, 
>since the select that was already issued returns 0 rows then it returns an
>exception, but why? why are we selecting ? and why it dies ?
>is this the correct way ? or Am I missing something ..? 
> 
>thanks
> 
>marcos oliva
> 
> 
> 
> 
>
>------_=_NextPart_001_01C22168.17960BE0
>Content-Type: text/html;
>	charset="iso-8859-1"
>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML><HEAD>
><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
>
>
><META content="MSHTML 6.00.2713.1100" name=GENERATOR></HEAD>
><BODY>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002>Hello</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>I am in the process 
>of setting up JDO, and I was able to get the build tests going, tables are 
>created and data has been imported onto the Oracle schema that I have set 
>up.</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>Now I started the 
>server in a separate DOS window and now I open another one to run the tutorial1 
>.</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>ran the tutorial and 
>the first thing I do is select 1 (add a product) enter the information and then 
>an exception occurs--- </SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>I have been able to 
>trace the error to the file JDBAccess on line 479 , when it is time to read the 
>column value 1, </SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>since the select 
>that was already issued returns 0 rows then it returns an exception, but why? 
>why are we selecting ? and why it dies ?</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>is this the correct 
>way ? or Am I missing something ..? </SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002>thanks</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN class=032302601-02072002>marcos 
>oliva</SPAN></FONT></DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2><SPAN 
>class=032302601-02072002></SPAN></FONT> </DIV>
><DIV><FONT face=Arial size=2></FONT> </DIV></BODY></HTML>
>
>------_=_NextPart_001_01C22168.17960BE0--
>
>
>--__--__--
>
>Message: 3
>From: "Willy Valdivia Granda" <wil...@nd...>
>To: <obj...@li...>
>Date: Mon, 1 Jul 2002 20:42:22 -0500
>Subject: [Objectbridge-jdo-dev] virtual conference on bioinformatics
>Reply-To: obj...@li...
>
>This is a multi-part message in MIME format.
>
>------=_NextPart_000_0002_01C2213F.CD37D600
>Content-Type: text/plain;
>	charset="iso-8859-1"
>Content-Transfer-Encoding: 7bit
>
>Second Virtual Conference on Genomics and Bioinformatics
>Sharing Knowledge with the World (No registration fees)
>September 24-26, 2002
>
>http://www.ndsu.nodak.edu/virtual-genomics/upcom2.htm
>
>Deadline: August 15, 2002 for complete documents
>
>Speakers List
>http://www.ndsu.nodak.edu/virtual-genomics/program.htm
>
>Review Committee List
>http://www.ndsu.nodak.edu/virtual-genomics/reviewpanel.htm
>
>Remote Locations: (if you are interested in host the VCGB-II) Please let us
>know
>
>CINECA Bologna-Italy (Access Grid)
>http://www.ndsu.nodak.edu/virtual-genomics/CINECARegistration.htm
>
>Marshall University(Real Player)
>http://www.ndsu.nodak.edu/virtual-genomics/MarshallRegistration.htm
>
>Oklahoma State University (Real Player)
>http://www.ndsu.nodak.edu/virtual-genomics/OklahomaRegistration.htm
>
>University of Kentucky
>http://www.ndsu.nodak.edu/virtual-genomics/KentuckyRegistration.htm
>
>Boston University
>http://www.ndsu.nodak.edu/virtual-genomics/BostonRegistration.htm
>
>University of New Mexico HPCERC, (NM) (USA) Access Grid Version
>http://www.ndsu.nodak.edu/virtual-genomics/NewMexRegistration.htm
>
>Ohio Supercomper Center, (OH) (USA) Access Grid Version
>http://www.ndsu.nodak.edu/virtual-genomics/OhioRegistration.htm
>
>The "Virtual Conference on Genomics and Bioinformatics" is an advanced
>environment for the exchange and discussion of information related to
>innovations of the post-genomic era. Since genomic research has led to an
>explosive rate of data accumulation and to a shift in the way biological
>research is conducted, the conference features high profile researchers and
>educators working actively in the development of new applications in the
>areas of genomics and bioinformatics. While genomic technologies offer an
>enormous scientific potential to understand genome functions, structure and
>interaction, the increasing amount of data generated present new challenges
>for biologists, sociologists, mathematicians, computer scientists and
>biological modelers. Therefore the main goals of the Virtual Conference in
>Genomics and Bioinformatics are:
>1) Transcend geographical and economical barriers to the exchange of ideas
>that facilitates the interaction and collaboration among scientists and
>educators around the world.
>2) Address the benefits and limitations of the newest developments in
>post-genomic technologies.
>3) Explore the social and ethical implications of genomic and bioinformatic
>research
>4) Establish new ways to introduce high school community about today's
>multidisciplinary science.
>
>Topics of the Virtual Conference includes but not limited to:
>. Structural and Functional Genomics
>. Post-Genomic Data Standardization, Management, and Integration
>. Statistical and Computational Approaches for Gene Expression Analysis
>. Sequence Annotation
>. Metabolic Profiling and Simulation of Cellular Processes
>. Social and Ethical Implications of Genomic Research
>. High Throughput Computing and Distributed Memory Infrastructures
>Willy Valdivia Granda
>Plant Stress Genomics and Bioinformatics Group
>North Dakota State University
>PO BOX 5130
>Fargo, USA
>701 231-8440 (Lab)
>701 231 8255 (Fax)
>www.ndsu.edu/virtual-genomics
>
>
>------=_NextPart_000_0002_01C2213F.CD37D600
>Content-Type: text/html;
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>Content-Transfer-Encoding: quoted-printable
>
><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
><HTML><HEAD>
><META http-equiv=3DContent-Type content=3D"text/html; =
>charset=3Diso-8859-1">
><META content=3D"MSHTML 6.00.2716.2200" name=3DGENERATOR></HEAD>
><BODY>
><ADDRESS><SPAN class=3D746194001-02072002><FONT face=3DArial =
>color=3D#ff0000=20
>size=3D2>Second Virtual Conference on Genomics and =
>Bioinformatics</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#0000ff size=3D2>Sharing Knowledge =
>with the World=20
>(No registration fees)</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>September 24-26, =
>2002</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/upcom2.htm">http://www=
>.ndsu.nodak.edu/virtual-genomics/upcom2.htm</A></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Deadline: August 15, 2002 for =
>complete=20
>documents</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Speakers List</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/program.htm">http://ww=
>w.ndsu.nodak.edu/virtual-genomics/program.htm</A></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Review Committee =
>List</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/reviewpanel.htm">http:=
>//www.ndsu.nodak.edu/virtual-genomics/reviewpanel.htm</A></FONT></ADDRESS=
>>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Remote Locations: (if you are =
>interested in=20
>host the VCGB-II) Please let us </FONT><FONT face=3DArial=20
>size=3D2>know</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>CINECA Bologna-Italy (Access=20
>Grid)</FONT></ADDRESS>
><ADDRESS><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/CINECARegistration.htm=
>"><FONT=20
>face=3DArial color=3D#000000=20
>size=3D2>http://www.ndsu.nodak.edu/virtual-genomics/CINECARegistration.ht=
>m</FONT></A></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Marshall University(Real=20
>Player)</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/MarshallRegistration.h=
>tm">http://www.ndsu.nodak.edu/virtual-genomics/MarshallRegistration.htm</=
>A></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Oklahoma State University (Real=20
>Player)</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/OklahomaRegistration.h=
>tm">http://www.ndsu.nodak.edu/virtual-genomics/OklahomaRegistration.htm</=
>A></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>University of =
>Kentucky</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/KentuckyRegistration.h=
>tm">http://www.ndsu.nodak.edu/virtual-genomics/KentuckyRegistration.htm</=
>A></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Boston University</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/BostonRegistration.htm=
>">http://www.ndsu.nodak.edu/virtual-genomics/BostonRegistration.htm</A></=
>FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>University of New Mexico HPCERC, =
>(NM) (USA)=20
>Access Grid Version </FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/NewMexRegistration.htm=
>">http://www.ndsu.nodak.edu/virtual-genomics/NewMexRegistration.htm</A></=
>FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Ohio Supercomper Center, (OH) (USA) =
>Access Grid=20
>Version</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial color=3D#000000 size=3D2><A=20
>href=3D"http://www.ndsu.nodak.edu/virtual-genomics/OhioRegistration.htm">=
>http://www.ndsu.nodak.edu/virtual-genomics/OhioRegistration.htm</A></FONT=
>></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2></FONT> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>The "Virtual Conference on Genomics =
>and=20
>Bioinformatics" is an advanced</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>environment for the exchange and =
>discussion of=20
>information related to</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>innovations of the post-genomic =
>era. Since=20
>genomic research has led to an</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>explosive rate of data accumulation =
>and to a=20
>shift in the way biological</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>research is conducted, the =
>conference features=20
>high profile researchers and</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>educators working actively in the =
>development=20
>of new applications in the</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>areas of genomics and =
>bioinformatics. While=20
>genomic technologies offer an</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>enormous scientific potential to =
>understand=20
>genome functions, structure and</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>interaction, the increasing amount =
>of data=20
>generated present new challenges</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>for biologists, sociologists, =
>mathematicians,=20
>computer scientists and</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>biological modelers. Therefore the =
>main goals=20
>of the Virtual Conference in</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Genomics and Bioinformatics=20
>are:</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>1) Transcend geographical and =
>economical=20
>barriers to the exchange of ideas</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>that facilitates the interaction =
>and=20
>collaboration among scientists and</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>educators around the =
>world.</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>2) Address the benefits and =
>limitations of the=20
>newest developments in</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>post-genomic =
>technologies.</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>3) Explore the social and ethical =
>implications=20
>of genomic and bioinformatic</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>research</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>4) Establish new ways to introduce =
>high school=20
>community about today's</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>multidisciplinary =
>science.</FONT></ADDRESS>
><ADDRESS> </ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Topics of the Virtual Conference =
>includes but=20
>not limited to:</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Structural and Functional=20
>Genomics</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Post-Genomic Data =
>Standardization,=20
>Management, and Integration</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Statistical and Computational =
>Approaches for=20
>Gene Expression Analysis</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Sequence =
>Annotation</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Metabolic Profiling and =
>Simulation of=20
>Cellular Processes</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. Social and Ethical Implications =
>of Genomic=20
>Research</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>. High Throughput Computing and =
>Distributed=20
>Memory Infrastructures</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Willy Valdivia =
>Granda</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Plant Stress Genomics and =
>Bioinformatics=20
>Group</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>North Dakota State =
>University</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>PO BOX 5130</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>Fargo, USA</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>701 231-8440 (Lab)</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>701 231 8255 (Fax)</FONT></ADDRESS>
><ADDRESS><FONT face=3DArial size=3D2>www.ndsu.edu/virtual-genomics =
></FONT></ADDRESS>
><ADDRESS><FONT face=3DArial><FONT=20
>size=3D2></SPAN></FONT></FONT> </ADDRESS></BODY></HTML>
>
>------=_NextPart_000_0002_01C2213F.CD37D600--
>
>
>
>--__--__--
>
>Message: 4
>Date: Tue, 02 Jul 2002 07:34:04 +0200
>From: Thomas Mahler <tho...@ho...>
>To: obj...@li...
>Subject: Re: [Objectbridge-jdo-dev] Re: newbie trying to get the tutorials
> working
>Reply-To: obj...@li...
>
>Hi Marcos,
>
>you are on a dead list.
>Please move to the new jakarta mailinglists.
>http://jakarta.apache.org/ojb/project-info.html
>
>why do you try to start with the complicated client/server mode.
>It will be much easier to get started in singlevm mode.
>Once you know everything works, you can of course use c/S mode.
>
>cheers,
>Thomas
>
>
>Marcos Oliva wrote:
>> Hello
>>  
>> I am in the process of setting up JDO, and I was able to get the build 
>> tests going, tables are created and data has been imported onto the 
>> Oracle schema that I have set up.
>> Now I started the server in a separate DOS window and now I open another 
>> one to run the tutorial1 .
>> ran the tutorial and the first thing I do is select 1 (add a product) 
>> enter the information and then an exception occurs---
>>  
>> I have been able to trace the error to the file JDBAccess on line 479 , 
>> when it is time to read the column value 1,
>> since the select that was already issued returns 0 rows then it returns 
>> an exception, but why? why are we selecting ? and why it dies ?
>> is this the correct way ? or Am I missing something ..?
>>  
>> thanks
>>  
>> marcos oliva
>>  
>>  
>>  
>>  
>
>
>
>
>
>--__--__--
>
>_______________________________________________
>Objectbridge-jdo-dev mailing list
>Obj...@li...
>https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>
>
>End of Objectbridge-jdo-dev Digest
>

_____________________________________________________
Supercharge your e-mail with a 25MB Inbox, POP3 Access, No Ads
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Hi Marcos,

you are on a dead list.
Please move to the new jakarta mailinglists.
http://jakarta.apache.org/ojb/project-info.html

why do you try to start with the complicated client/server mode.
It will be much easier to get started in singlevm mode.
Once you know everything works, you can of course use c/S mode.

cheers,
Thomas

Marcos Oliva wrote:
> Hello
>  
> I am in the process of setting up JDO, and I was able to get the build 
> tests going, tables are created and data has been imported onto the 
> Oracle schema that I have set up.
> Now I started the server in a separate DOS window and now I open another 
> one to run the tutorial1 .
> ran the tutorial and the first thing I do is select 1 (add a product) 
> enter the information and then an exception occurs---
>  
> I have been able to trace the error to the file JDBAccess on line 479 , 
> when it is time to read the column value 1,
> since the select that was already issued returns 0 rows then it returns 
> an exception, but why? why are we selecting ? and why it dies ?
> is this the correct way ? or Am I missing something ..?
>  
> thanks
>  
> marcos oliva
>  
>  
>  
>  

Second Virtual Conference on Genomics and Bioinformatics
Sharing Knowledge with the World (No registration fees)
September 24-26, 2002

http://www.ndsu.nodak.edu/virtual-genomics/upcom2.htm

Deadline: August 15, 2002 for complete documents

Speakers List
http://www.ndsu.nodak.edu/virtual-genomics/program.htm

Review Committee List
http://www.ndsu.nodak.edu/virtual-genomics/reviewpanel.htm

Remote Locations: (if you are interested in host the VCGB-II) Please let us
know

CINECA Bologna-Italy (Access Grid)
http://www.ndsu.nodak.edu/virtual-genomics/CINECARegistration.htm

Marshall University(Real Player)
http://www.ndsu.nodak.edu/virtual-genomics/MarshallRegistration.htm

Oklahoma State University (Real Player)
http://www.ndsu.nodak.edu/virtual-genomics/OklahomaRegistration.htm

University of Kentucky
http://www.ndsu.nodak.edu/virtual-genomics/KentuckyRegistration.htm

Boston University
http://www.ndsu.nodak.edu/virtual-genomics/BostonRegistration.htm

University of New Mexico HPCERC, (NM) (USA) Access Grid Version
http://www.ndsu.nodak.edu/virtual-genomics/NewMexRegistration.htm

Ohio Supercomper Center, (OH) (USA) Access Grid Version
http://www.ndsu.nodak.edu/virtual-genomics/OhioRegistration.htm

The "Virtual Conference on Genomics and Bioinformatics" is an advanced
environment for the exchange and discussion of information related to
innovations of the post-genomic era. Since genomic research has led to an
explosive rate of data accumulation and to a shift in the way biological
research is conducted, the conference features high profile researchers and
educators working actively in the development of new applications in the
areas of genomics and bioinformatics. While genomic technologies offer an
enormous scientific potential to understand genome functions, structure and
interaction, the increasing amount of data generated present new challenges
for biologists, sociologists, mathematicians, computer scientists and
biological modelers. Therefore the main goals of the Virtual Conference in
Genomics and Bioinformatics are:
1) Transcend geographical and economical barriers to the exchange of ideas
that facilitates the interaction and collaboration among scientists and
educators around the world.
2) Address the benefits and limitations of the newest developments in
post-genomic technologies.
3) Explore the social and ethical implications of genomic and bioinformatic
research
4) Establish new ways to introduce high school community about today's
multidisciplinary science.

Topics of the Virtual Conference includes but not limited to:
. Structural and Functional Genomics
. Post-Genomic Data Standardization, Management, and Integration
. Statistical and Computational Approaches for Gene Expression Analysis
. Sequence Annotation
. Metabolic Profiling and Simulation of Cellular Processes
. Social and Ethical Implications of Genomic Research
. High Throughput Computing and Distributed Memory Infrastructures
Willy Valdivia Granda
Plant Stress Genomics and Bioinformatics Group
North Dakota State University
PO BOX 5130
Fargo, USA
701 231-8440 (Lab)
701 231 8255 (Fax)
www.ndsu.edu/virtual-genomics

Hello

I am in the process of setting up JDO, and I was able to get the build tests
going, tables are created and data has been imported onto the Oracle schema
that I have set up.
Now I started the server in a separate DOS window and now I open another one
to run the tutorial1 .
ran the tutorial and the first thing I do is select 1 (add a product) enter
the information and then an exception occurs--- 

I have been able to trace the error to the file JDBAccess on line 479 , when
it is time to read the column value 1, 
since the select that was already issued returns 0 rows then it returns an
exception, but why? why are we selecting ? and why it dies ?
is this the correct way ? or Am I missing something ..? 

thanks

marcos oliva

Hi

Michael Vorburger-Rajagopalan wrote:
>>I guess I've wandered onto the wrong list as well...
>>what is the Jakarta one?
> 
> 
> http://jakarta.apache.org/ojb/mail-lists.html
> 
> Guys I just joined and don't mean to be ranting... but what about
> rapidly closing down the sourceforge lists, calling on everybody to
> subscribe to the jakarta lists, if that's what you want?  Just a
> thought.
> 

Of course we did request all subscribers to shift to the new list.
But this was before you subscribed...

> 
> 
> -----Original Message-----
> From: obj...@li...
> [mailto:obj...@li...]On Behalf Of
> David Gallardo
> Sent: Montag, 1. Juli 2002 20:09
> To: obj...@li...
> Subject: Re: [Objectbridge-jdo-dev] Hi from new list subscriber
> 
> 
> I guess I've wandered onto the wrong list as well...
> what is the Jakarta one?
> 
> - D
> 
> --- Thomas Mahler <tho...@ho...> wrote:
> 
>>Hi Michael,
>>
>>Michael Vorburger wrote:
>>
>>>Hello objectbridge-jdo-dev'ers!
>>
>>ODMG spec....)
> 
> [...]
> 
>>>* SF vs. Jakarta... the jdo-proposal.html page on
>>
>>Jakarta still
>>
>>>encourages to subscribe to
>>>obj...@li...... but
>>
>>there seem to be a
>>
>>>Jakarta hosted list(s) as well, so am I on the
>>
>>wrong mailing list
>>
>>>here?
>>
>>Right, better use the Jakarta lists. the mentioning
>>of the old list is a
>>"bug"...
>>
> 
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Yahoo! - Official partner of 2002 FIFA World Cup
> http://fifaworldcup.yahoo.com
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
> 
> 
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
> 
> 
> 

> I guess I've wandered onto the wrong list as well...
> what is the Jakarta one?

http://jakarta.apache.org/ojb/mail-lists.html

Guys I just joined and don't mean to be ranting... but what about
rapidly closing down the sourceforge lists, calling on everybody to
subscribe to the jakarta lists, if that's what you want?  Just a
thought.

-----Original Message-----
From: obj...@li...
[mailto:obj...@li...]On Behalf Of
David Gallardo
Sent: Montag, 1. Juli 2002 20:09
To: obj...@li...
Subject: Re: [Objectbridge-jdo-dev] Hi from new list subscriber

I guess I've wandered onto the wrong list as well...
what is the Jakarta one?

- D

--- Thomas Mahler <tho...@ho...> wrote:
> Hi Michael,
>
> Michael Vorburger wrote:
> > Hello objectbridge-jdo-dev'ers!
> ODMG spec....)
[...]
>
> > * SF vs. Jakarta... the jdo-proposal.html page on
> Jakarta still
> > encourages to subscribe to
> > obj...@li...... but
> there seem to be a
> > Jakarta hosted list(s) as well, so am I on the
> wrong mailing list
> > here?
>
> Right, better use the Jakarta lists. the mentioning
> of the old list is a
> "bug"...
>

__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com

-------------------------------------------------------
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
_______________________________________________
Objectbridge-jdo-dev mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

I guess I've wandered onto the wrong list as well...
what is the Jakarta one?

- D

--- Thomas Mahler <tho...@ho...> wrote:
> Hi Michael,
> 
> Michael Vorburger wrote:
> > Hello objectbridge-jdo-dev'ers!
> ODMG spec....)
[...]
> 
> > * SF vs. Jakarta... the jdo-proposal.html page on
> Jakarta still
> > encourages to subscribe to
> > obj...@li...... but
> there seem to be a
> > Jakarta hosted list(s) as well, so am I on the
> wrong mailing list
> > here?
> 
> Right, better use the Jakarta lists. the mentioning
> of the old list is a 
> "bug"...
> 

__________________________________________________
Do You Yahoo!?
Yahoo! - Official partner of 2002 FIFA World Cup
http://fifaworldcup.yahoo.com

Hi Michael,

Michael Vorburger wrote:
> Hello objectbridge-jdo-dev'ers!
> 
> just subscribed to this list, and thought I would drop a note.  Got
> mostly attracted by the
> http://jakarta.apache.org/ojb/jdo/jdo-proposal.html page....  So how
> are things, in regards to what's described there?
> 

We followed the general idea of this proposal.
There is now a rapid JDO prototype, that demonstrate some basic features.
Currently we are discussing the details of the OTM design. Matthew Baird 
assembled a document that will be the base for of our next 
implementation steps:
http://archives.apache.org/eyebrowse/ReadMsg?listName=oj...@ja...&msgNo=289

> Even though I have gone through a (probably somewhat simpler than OJB)
> persistence layer developed in-house; I am not sure if I can put in
> significant development time myself at this point, simply because of
> the time, other than little helper code e.g. some .jdo XML
> unmarshalling, other helpers and tools, or something like that.
> 
> However, I have been involved with JDO since relatively early on, am
> quite familiar with the spec. and API, and believe to have some notion
> of the current landscape in terms of existing implementations and
> stuff, and would be happy in assisting this project this way, if I
> can.  What do you need most?   It may be a bit early for OJB JDO
> testing? ;-)
>

Right, the prototype won't pass the JDO TCK.

> 
> May I ask some questions that popped through my mind?
> 
> * How widely used is the existing ODMG API-based OJB?

I don't have any exact figures. But I know of several large projects 
that use it in production. There are many ex-TopLink customers that use 
OJB...

> * How mature is it?  Used... in...
> 

There have only been minor changes to the ODMG layer since the OJB 0.5 
release. Apart from some issues with the OQL parser I don't think there 
are any problems with it. (The OQL parser is based on the official oql.g 
grammar from the ODMG website. This grammar is not perfect wrt. to the 
ODMG spec....)

> * SF vs. Jakarta... the jdo-proposal.html page on Jakarta still
> encourages to subscribe to
> obj...@li...... but there seem to be a
> Jakarta hosted list(s) as well, so am I on the wrong mailing list
> here?

Right, better use the Jakarta lists. the mentioning of the old list is a 
"bug"...

> 
> * For general curiosity: How does one (OBJ) get onto Jakarta, anyway?
> 

Oh, it works according to the Hollywood principle: "Don't call us, we 
call you". :-)
I have been contacted by Jason van Zyl. He asked me if we'd like to 
Jakarta...

> * Noticed "JDO prototype and sample application." for 0.9... so there
> is working JDO-API compliant code out there, already?  

Right. I would not claim it to be JDO compliant. But it allows to run 
some simple examples...

> Just curious,
> because the jdo-proposal.html seems to propose a refactoring for a
> 2.0... far out in time?  Very roughly, what sort of timeframe do
> people have in mind here?
> 

Given the current pace I think we could have a beta quality JDO system 
at the end of the year. Maybe even earlier.

cheers,
Thomas

> Regards,
> Michael
> 
> 
> 
> 
> -------------------------------------------------------
> This sf.net email is sponsored by:ThinkGeek
> Welcome to geek heaven.
> http://thinkgeek.com/sf
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
> 
> 
> 

Hello objectbridge-jdo-dev'ers!

just subscribed to this list, and thought I would drop a note.  Got
mostly attracted by the
http://jakarta.apache.org/ojb/jdo/jdo-proposal.html page....  So how
are things, in regards to what's described there?

Even though I have gone through a (probably somewhat simpler than OJB)
persistence layer developed in-house; I am not sure if I can put in
significant development time myself at this point, simply because of
the time, other than little helper code e.g. some .jdo XML
unmarshalling, other helpers and tools, or something like that.

However, I have been involved with JDO since relatively early on, am
quite familiar with the spec. and API, and believe to have some notion
of the current landscape in terms of existing implementations and
stuff, and would be happy in assisting this project this way, if I
can.  What do you need most?   It may be a bit early for OJB JDO
testing? ;-)

May I ask some questions that popped through my mind?

* How widely used is the existing ODMG API-based OJB?
* How mature is it?  Used... in...

* SF vs. Jakarta... the jdo-proposal.html page on Jakarta still
encourages to subscribe to
obj...@li...... but there seem to be a
Jakarta hosted list(s) as well, so am I on the wrong mailing list
here?

* For general curiosity: How does one (OBJ) get onto Jakarta, anyway?

* Noticed "JDO prototype and sample application." for 0.9... so there
is working JDO-API compliant code out there, already?  Just curious,
because the jdo-proposal.html seems to propose a refactoring for a
2.0... far out in time?  Very roughly, what sort of timeframe do
people have in mind here?

Regards,
Michael

-------- Original Message --------
Subject: [OJB-developers] moving to Jakarta
Date: Thu, 20 Jun 2002 07:13:06 +0200
From: Thomas Mahler <tho...@ho...>
To: ojb <obj...@li...>, 
obj...@li...

Hi all,

The shift to Jakarta is now complete.
OJB is now an official Jakarta subproject.
Our new url is : http://jakarta.apache.org/ojb

All OJB related activities will be organized in the Jakarta environment.
The SourceForge presence will be reduced to a minimum.

All OJB users and developers are requested to register to our new
Jakarta mailinglists, as we won't maintain the sourceforge mailinglists.
Here is the link to the mailinglist subscription page:
http://jakarta.apache.org/ojb/mail-lists.html

I shut down all Mailinglists, Tracker and Forum functionality on our old
SourceForge site.

best regards,
Thomas

-------------------------------------------------------
                    Bringing you mounds of caffeinated joy
                    >>>     http://thinkgeek.com/sf    <<<

_______________________________________________
Objectbridge-developers mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-developers

Christian, 

If you want to see the error when enhancing, uncomment the extension lines in src/test/test/org/apache/ojb/tutorial4.jdo, then run the enhance ant target 

This is the error:

Fatal error while enhancing: JDO ENHANCER: An internal error occurred while enhancing input class; detailed message: nested exception: com.sun.jdori.model.jdo.JDOModelException: Error during reading XML meta data.
NestedException: org.xml.sax.SAXParseException: Element "jdo" does not allow "extension" here.
aborted with errors.
com.sun.jdori.enhancer.EnhancerFatalError: JDO ENHANCER: An internal error occurred while enhancing input class; detailed message: nested exception: com.sun.jdori.model.jdo.JDOModelException: Error during reading XML meta data.
NestedException: org.xml.sax.SAXParseException: Element "jdo" does not allow "extension" here.

Travis 

jdori.  Run the enhance ant target.  Actually, that probalby won't work now that it's moved.  ;-)  I'll get it working after I can commit changes so you can see.  

Travis

---- Original Message ----
From: Christian Sell <chr...@ne...>
Sent: 2002-06-17
To: obj...@li...
Subject: Re: Re: [Objectbridge-jdo-dev] jdo extension format... again

so the enhancer (which enhancer?) is broken?

----- Original Message -----
From: <tr...@th...>
To: <obj...@li...>
Sent: Monday, June 17, 2002 10:51 PM
Subject: RE: Re: [Objectbridge-jdo-dev] jdo extension format... again

> Errors when you try running the enhancer.
>
> Travis
>
> ---- Original Message ----
> From: Sebastian Kanthak <seb...@mu...>
> Sent: 2002-06-17
> To: obj...@li...
> Subject: Re: [Objectbridge-jdo-dev] jdo extension format... again
>
> Hi Travis,
>
> On Monday 17 June 2002 19:36, tr...@th... wrote:
> > Turns out the jdbc information cannot be put in the jdo files because
the
> > extension tag can't be put in the <jdo> or <package> tag so i'm going to
> > use the repository.xml for that still.
>
> where do you have this from. My jdo DTD tells me, it is allowed:
>
> <?xml version= 1.0  encoding= UTF-8 ?>
> <!ELEMENT jdo ((package)+, (extension)*)>
> <!ELEMENT package ((class)+, (extension)*)>
> [snip]
>
> ciao Sebastian
>
> --
> Sebastian Kanthak    |    seb...@mu...
>
> _______________________________________________________________
>
> Sponsored by:
> ThinkGeek at http://www.ThinkGeek.com/
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>
>
>
> _______________________________________________________________
>
> Sponsored by:
> ThinkGeek at http://www.ThinkGeek.com/
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

----------------------------------------------------------------------------
                   Bringing you mounds of caffeinated joy
                      >>>     http://thinkgeek.com/sf    <<<

_______________________________________________
Objectbridge-jdo-dev mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

so the enhancer (which enhancer?) is broken?

----- Original Message -----
From: <tr...@th...>
To: <obj...@li...>
Sent: Monday, June 17, 2002 10:51 PM
Subject: RE: Re: [Objectbridge-jdo-dev] jdo extension format... again

> Errors when you try running the enhancer.
>
> Travis
>
> ---- Original Message ----
> From: Sebastian Kanthak <seb...@mu...>
> Sent: 2002-06-17
> To: obj...@li...
> Subject: Re: [Objectbridge-jdo-dev] jdo extension format... again
>
> Hi Travis,
>
> On Monday 17 June 2002 19:36, tr...@th... wrote:
> > Turns out the jdbc information cannot be put in the jdo files because
the
> > extension tag can't be put in the <jdo> or <package> tag so i'm going to
> > use the repository.xml for that still.
>
> where do you have this from. My jdo DTD tells me, it is allowed:
>
> <?xml version= 1.0  encoding= UTF-8 ?>
> <!ELEMENT jdo ((package)+, (extension)*)>
> <!ELEMENT package ((class)+, (extension)*)>
> [snip]
>
> ciao Sebastian
>
> --
> Sebastian Kanthak    |    seb...@mu...
>
> _______________________________________________________________
>
> Sponsored by:
> ThinkGeek at http://www.ThinkGeek.com/
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>
>
>
> _______________________________________________________________
>
> Sponsored by:
> ThinkGeek at http://www.ThinkGeek.com/
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

Where is it possible to find some info about mentioned db.apache.org
project?

Greetz
David Zejda

Errors when you try running the enhancer.  

Travis

---- Original Message ----
From: Sebastian Kanthak <seb...@mu...>
Sent: 2002-06-17
To: obj...@li...
Subject: Re: [Objectbridge-jdo-dev] jdo extension format... again

Hi Travis,

On Monday 17 June 2002 19:36, tr...@th... wrote:
> Turns out the jdbc information cannot be put in the jdo files because the
> extension tag can't be put in the <jdo> or <package> tag so i'm going to
> use the repository.xml for that still.

where do you have this from. My jdo DTD tells me, it is allowed:

<?xml version= 1.0  encoding= UTF-8 ?>
<!ELEMENT jdo ((package)+, (extension)*)>
<!ELEMENT package ((class)+, (extension)*)>
[snip]

ciao Sebastian

-- 
Sebastian Kanthak    |    seb...@mu...

_______________________________________________________________

Sponsored by:
ThinkGeek at http://www.ThinkGeek.com/
_______________________________________________
Objectbridge-jdo-dev mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

Hi Travis,

On Monday 17 June 2002 19:36, tr...@th... wrote:
> Turns out the jdbc information cannot be put in the jdo files because the
> extension tag can't be put in the <jdo> or <package> tag so i'm going to
> use the repository.xml for that still.

where do you have this from. My jdo DTD tells me, it is allowed:

<?xml version= 1.0  encoding= UTF-8 ?>
<!ELEMENT jdo ((package)+, (extension)*)>
<!ELEMENT package ((class)+, (extension)*)>
[snip]

ciao Sebastian

-- 
Sebastian Kanthak    |    seb...@mu...

Hi,
simplestore (will be renamed, it is a trademart)
is in jakarta-commons-sandbox/simplestore
(http://cvs.apache.org/viewcvs/jakarta-commons-sandbox/simplestore/)
Working example is on  http://eob.sourceforge.net (example3)
Everything is experiment in simplestore at this time and it is not very
trivial to setup it.

I am going to complete JDO implementation,  I contributed some code for XORM
project too, but my opinion about SUN's standarts is a very long story ....
.

BTW : I am objectbridge user (ODMG interface), it works very good for me.

Hi Juozas,

>
> Hi,
> I work on experimental persistence framework, it is Apache
> SimpleStore. It
> has implementation
> for JDBC, XMLDB and file. May be it is possible to merge both
> projects ?

Yes this may be interesting for the new db.apache.org project!

> It is nothing bad to have two or more projects about the
> same, but I think
> it is good
> to find  something the most usefull and reuse it.

I agree!

> I prefer to have three or more projects at Apache :
> 1) Standard Apache DB API, only interfaces and "large" documentation.

Do we need new persistence APIs? There are standard APIs for
Object-Persistence:
ODMG, JDO, S.O.A.P.
I don't see any requirements for Yet Another Persistence API.

> 2) Implementations and "small" documentation.
>
> JDO can be some kind of "standard" API, but it closed for
> people like me and
> I prefer Open Standards.
>

Where can I find more info on your project?

cheers,

Thomas

>
> Hi David,
>
> > -----Ursprüngliche Nachricht-----
> > Von: David Zejda [mailto:dv...@at...]
> > Gesendet: Donnerstag, 13. Juni 2002 01:17
> > An: Obj...@li...
> > Betreff: [Objectbridge-jdo-dev] Non-JDBC data sources
> >
> >
> > I know, that OJB's focus sharpness (faq: It's concerned with
> > O/R mapping and
> > nothing else.) is design/manage advantage, but I work on
> > project, where it's
> > crucial to integrate disparate data sources (RDBMS, ODBMS,
> > XML based DBMS,
> > flat-files, vendor specific formats..). I decided not to use closed,
> > non-free solutions at all, so OJB (open-source, clearly designed,
> > scalable...), seems to be suitable as a persistency-heart.
> > Could you advise how to get on with OJB?
>
>
> > 1) use OJB as a single persistency adaptor, manage several ODMG
> > implementations, make some fascade to hide it, e.g. solve
> distributed
> > transactions...?
>
> If there are existing ODMG Java bindings to you other
> datasources this will
> be vers easy.
> Just write litte wrappers that route user request to different ODMG
> implementations.
>
> If there is no ODMG API for a given persistent store, you can
> implement a
> dedicated PersistenceBroker for this special persistent store.
> This way you can use the OJB ODMG (or JDO if you prefer)
> implementation to
> access arbitrary persistent stores.
>
> > 2) extent OJB (add persistency adpators to OJB) - if
> > publically useful,
> > release them under LGPL as modular OJB's parts/add-ons?
>
> Yes, that's what I'm recommending. have a look at our
> persistence kernel
> interface ojb.broker.PersistenceBroker.
> It contains no specifics for RDBMS. It is a generic abstractiion of an
> object store.
> There could be implementations for OODBMS, RDBMS, XML
> databases, file system
> or Directory Services !
>
> You only have to provide a persistent store specific PersistenceBroker
> Implementation.
> Than you can use the OJB ODMG or JDO layer to work against
> those specific
> brokers.
>
> regarding OJB scope:
> As OJB will be one of the foundation projects of the new
> db.apache.org site,
> our scope is not longer limited as mentioned in the faq.
> OJB will be a generic object persistence integration platform!
>
> Thus having new PersistenceBroker implementations is very
> interesting for
> us!
> (especially XML, OODBMS, LDAP, flat-file)
>
> As we are moving to Jakarta, we will use the apache licence soon.
>
> > 2.1) is this posible without (negative) impact on OJB's
> actual design
>
> yes no problems!
>
> > 3) something else?
> >
> > In the roadmap there is (4me) a bit mysterious  sentence "provide
> > distributed Meta-Object Protocol access through
> PersistenceBroker API"
>
> This has been implemented a long time ago. OJB comes with a
> client/server
> mode. To have fully operational clients it is necessary to
> have meta-data on
> the client too. This was not possible in the early days, but
> now it is.
>
> > Somewhere in OJB doc I read about possibility to build my own
> > PersistenceManager. Does it relate to mentioned problem?
> >
>
> No. You simply have to implement the PersistenceBroker
> interface to write a
> new storage adaptor.
>
> A persistenceManager would be something like your own ODMG or JDO
> implementation. That would be a much more difficult task!
>
> cheers,
>
> Thomas
>
> > Thanks for reply
> > David Zejda
> >
> >
> > PS: I know, I can suck all wanted info from API, but I
> thing, you (OJB
> > experts) can answer quickly and painlessly.
> >
> > BTW thanks for OJB, well done!
> >
> >
> >
> >
> > _______________________________________________________________
> >
> > Don't miss the 2002 Sprint PCS Application Developer's Conference
> > August 25-28 in Las Vegas -
> > http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink
> >
> > _______________________________________________
> > Objectbridge-jdo-dev mailing list
> > Obj...@li...
> > https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
> >
>
> _______________________________________________________________
>
> Don't miss the 2002 Sprint PCS Application Developer's Conference
> August 25-28 in Las Vegas -
> http://devcon.sprintpcs.com/adp/index.cfm?source=dntextlink
>
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>
>
> _______________________________________________________________
>
> Don't miss the 2002 Sprint PCS Application Developer's Conference
> August 25-28 in Las Vegas -
> http://devcon.sprintpcs.com/adp/index.cfm?source=osdntextlink
>
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>

_______________________________________________________________

Sponsored by:
ThinkGeek at http://www.ThinkGeek.com/
_______________________________________________
Objectbridge-jdo-dev mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

I have been thinking about this lately. From what I gather from looking at
the repository.xml(.dtd), 
it seems that the repository.xml is a little too jdbc (relational) centric.
I believe that in the name
of staying true to the spirit of JDO, we ought to move any store related
data into a properties
file. Just like most of the JDO commercial implementations are doing.

Mike.

-----Original Message-----
From: tr...@th... [mailto:tr...@th...]
Sent: Monday, June 17, 2002 1:36 PM
To: obj...@so...
Subject: [Objectbridge-jdo-dev] jdo extension format... again

Turns out the jdbc information cannot be put in the jdo files because the
extension tag can't be put in the <jdo> or <package> tag so i'm going to use
the repository.xml for that still.

Travis 

_______________________________________________________________

Sponsored by:
ThinkGeek at http://www.ThinkGeek.com/
_______________________________________________
Objectbridge-jdo-dev mailing list
Obj...@li...
https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev

Turns out the jdbc information cannot be put in the jdo files because the extension tag can't be put in the <jdo> or <package> tag so i'm going to use the repository.xml for that still.

Travis 

We currently have no such plans.

But it sounds like a good idea.
Such a Wrapper might reduce of headaches we have with the various =
sploppy
implemented JdbcDrivers around.

If you want to spend some time on this issue,
just go ahead!

cheers,
Thomas

> -----Urspr=FCngliche Nachricht-----
> Von: Roman Seleznev [mailto:rom...@pa...]
> Gesendet: Montag, 17. Juni 2002 11:41
> An: obj...@li...
> Betreff: [Objectbridge-jdo-dev] jdbc driver wrapper
>=20
>=20
> Hello guys ,
>=20
> do You have plans to implement jdbc driver
> wrapper with support of jdbc drivers which do not implement
> jdbc standard extensions ( javax.sql.Datasource , two-phase=20
> commit emulation
> , pull , etc ) ?
> I found such wrapper in Orion Application server - it is very=20
> cool , it adds
> support for such databases as sapdb , so I could run my web=20
> application with
> Castor JDO on sapdb using Orion Application Server , but I=20
> could not run it
> using Tomcat because there is no such wrapper - it will be=20
> good to have jdbc
> wrapper built-in into JDO engine and do not depennd on=20
> different application
> servers and drivers as in Castor JDO now. If You have such=20
> plans I am ready
> to contribute my time on this thread.
> Maybe somebody knows about already existing open source=20
> initiatives in this
> area ?
>=20
> Regards ,
> Roman Seleznev.
>=20
>=20
> _______________________________________________________________
>=20
> Sponsored by:
> ThinkGeek at http://www.ThinkGeek.com/
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>=20

Hi Juozas,

>=20
> Hi,
> I work on experimental persistence framework, it is Apache=20
> SimpleStore. It
> has implementation
> for JDBC, XMLDB and file. May be it is possible to merge both=20
> projects ?

Yes this may be interesting for the new db.apache.org project!

> It is nothing bad to have two or more projects about the=20
> same, but I think
> it is good
> to find  something the most usefull and reuse it.

I agree!

> I prefer to have three or more projects at Apache :
> 1) Standard Apache DB API, only interfaces and "large" documentation.

Do we need new persistence APIs? There are standard APIs for
Object-Persistence:
ODMG, JDO, S.O.A.P.
I don't see any requirements for Yet Another Persistence API.

> 2) Implementations and "small" documentation.
>=20
> JDO can be some kind of "standard" API, but it closed for=20
> people like me and
> I prefer Open Standards.
>=20

Where can I find more info on your project?

cheers,

Thomas

>=20
> Hi David,
>=20
> > -----Urspr=FCngliche Nachricht-----
> > Von: David Zejda [mailto:dv...@at...]
> > Gesendet: Donnerstag, 13. Juni 2002 01:17
> > An: Obj...@li...
> > Betreff: [Objectbridge-jdo-dev] Non-JDBC data sources
> >
> >
> > I know, that OJB's focus sharpness (faq: It's concerned with
> > O/R mapping and
> > nothing else.) is design/manage advantage, but I work on
> > project, where it's
> > crucial to integrate disparate data sources (RDBMS, ODBMS,
> > XML based DBMS,
> > flat-files, vendor specific formats..). I decided not to use =
closed,
> > non-free solutions at all, so OJB (open-source, clearly designed,
> > scalable...), seems to be suitable as a persistency-heart.
> > Could you advise how to get on with OJB?
>=20
>=20
> > 1) use OJB as a single persistency adaptor, manage several ODMG
> > implementations, make some fascade to hide it, e.g. solve=20
> distributed
> > transactions...?
>=20
> If there are existing ODMG Java bindings to you other=20
> datasources this will
> be vers easy.
> Just write litte wrappers that route user request to different ODMG
> implementations.
>=20
> If there is no ODMG API for a given persistent store, you can=20
> implement a
> dedicated PersistenceBroker for this special persistent store.
> This way you can use the OJB ODMG (or JDO if you prefer)=20
> implementation to
> access arbitrary persistent stores.
>=20
> > 2) extent OJB (add persistency adpators to OJB) - if
> > publically useful,
> > release them under LGPL as modular OJB's parts/add-ons?
>=20
> Yes, that's what I'm recommending. have a look at our=20
> persistence kernel
> interface ojb.broker.PersistenceBroker.
> It contains no specifics for RDBMS. It is a generic abstractiion of =
an
> object store.
> There could be implementations for OODBMS, RDBMS, XML=20
> databases, file system
> or Directory Services !
>=20
> You only have to provide a persistent store specific =
PersistenceBroker
> Implementation.
> Than you can use the OJB ODMG or JDO layer to work against=20
> those specific
> brokers.
>=20
> regarding OJB scope:
> As OJB will be one of the foundation projects of the new=20
> db.apache.org site,
> our scope is not longer limited as mentioned in the faq.
> OJB will be a generic object persistence integration platform!
>=20
> Thus having new PersistenceBroker implementations is very=20
> interesting for
> us!
> (especially XML, OODBMS, LDAP, flat-file)
>=20
> As we are moving to Jakarta, we will use the apache licence soon.
>=20
> > 2.1) is this posible without (negative) impact on OJB's=20
> actual design
>=20
> yes no problems!
>=20
> > 3) something else?
> >
> > In the roadmap there is (4me) a bit mysterious  sentence "provide
> > distributed Meta-Object Protocol access through=20
> PersistenceBroker API"
>=20
> This has been implemented a long time ago. OJB comes with a=20
> client/server
> mode. To have fully operational clients it is necessary to=20
> have meta-data on
> the client too. This was not possible in the early days, but=20
> now it is.
>=20
> > Somewhere in OJB doc I read about possibility to build my own
> > PersistenceManager. Does it relate to mentioned problem?
> >
>=20
> No. You simply have to implement the PersistenceBroker=20
> interface to write a
> new storage adaptor.
>=20
> A persistenceManager would be something like your own ODMG or JDO
> implementation. That would be a much more difficult task!
>=20
> cheers,
>=20
> Thomas
>=20
> > Thanks for reply
> > David Zejda
> >
> >
> > PS: I know, I can suck all wanted info from API, but I=20
> thing, you (OJB
> > experts) can answer quickly and painlessly.
> >
> > BTW thanks for OJB, well done!
> >
> >
> >
> >
> > _______________________________________________________________
> >
> > Don't miss the 2002 Sprint PCS Application Developer's Conference
> > August 25-28 in Las Vegas -
> > http://devcon.sprintpcs.com/adp/index.cfm?source=3Dosdntextlink
> >
> > _______________________________________________
> > Objectbridge-jdo-dev mailing list
> > Obj...@li...
> > https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
> >
>=20
> _______________________________________________________________
>=20
> Don't miss the 2002 Sprint PCS Application Developer's Conference
> August 25-28 in Las Vegas -
> http://devcon.sprintpcs.com/adp/index.cfm?source=3Ddntextlink
>=20
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>=20
>=20
> _______________________________________________________________
>=20
> Don't miss the 2002 Sprint PCS Application Developer's Conference
> August 25-28 in Las Vegas -=20
> http://devcon.sprintpcs.com/adp/index.cfm?source=3Dosdntextlink
>=20
> _______________________________________________
> Objectbridge-jdo-dev mailing list
> Obj...@li...
> https://lists.sourceforge.net/lists/listinfo/objectbridge-jdo-dev
>=20

Hello guys ,

do You have plans to implement jdbc driver
wrapper with support of jdbc drivers which do not implement
jdbc standard extensions ( javax.sql.Datasource , two-phase commit emulation
, pull , etc ) ?
I found such wrapper in Orion Application server - it is very cool , it adds
support for such databases as sapdb , so I could run my web application with
Castor JDO on sapdb using Orion Application Server , but I could not run it
using Tomcat because there is no such wrapper - it will be good to have jdbc
wrapper built-in into JDO engine and do not depennd on different application
servers and drivers as in Castor JDO now. If You have such plans I am ready
to contribute my time on this thread.
Maybe somebody knows about already existing open source initiatives in this
area ?

Regards ,
Roman Seleznev.

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