dbTalk Databases Forums  

Looking for ODMG Implementation

comp.databases.object comp.databases.object


Discuss Looking for ODMG Implementation in the comp.databases.object forum.



Reply
 
Thread Tools Display Modes
  #1  
Old   
kyukawa
 
Posts: n/a

Default Looking for ODMG Implementation - 10-13-2003 , 06:15 AM







I'm looking for a faithful implementation of ODMG 3.0 Standard for

OODBs that is available for free downloading and that would be suitable

for an introductory college course on OODBs. I've looked at several

ODMG-compliant products, but prefer to use a faithful and complete

implementation of ODMG 3.0 or its core subset thereof. Experimental
implementations developed at universities or research labs, as long as
they are reasonably robust and user-friendly, would be fine as well.



Any information would be much appreciated. Thanks.


--
Posted via http://dbforums.com

Reply With Quote
  #2  
Old   
hantheman
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-10-2003 , 07:03 AM






kyukawa <member43876 (AT) dbforums (DOT) com> wrote

Quote:
I'm looking for a faithful implementation of ODMG 3.0 Standard for
Why? ODMG is dead and it was a BAD standard.

Don't waste your time.


Reply With Quote
  #3  
Old   
Wolfgang Keller
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-10-2003 , 02:22 PM



why not look at JDO - Java Data Objects
It's the follow up standard of ODMG with some 15+ implementations - some of
them free
Maybe this page
http://www.objectarchitects.de/Objec...s/products.htm

might help

Cheers, Wolfgang

kyukawa wrote:

Quote:
I'm looking for a faithful implementation of ODMG 3.0 Standard for

OODBs that is available for free downloading and that would be suitable

for an introductory college course on OODBs. I've looked at several

ODMG-compliant products, but prefer to use a faithful and complete

implementation of ODMG 3.0 or its core subset thereof. Experimental
implementations developed at universities or research labs, as long as
they are reasonably robust and user-friendly, would be fine as well.

Any information would be much appreciated. Thanks.

--
Posted via http://dbforums.com


Reply With Quote
  #4  
Old   
Christian Bauer
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-11-2003 , 07:17 AM



Wolfgang Keller <wk (AT) objectarchitects (DOT) de> wrote:

Quote:
http://www.objectarchitects.de/Objec...s/products.htm
Wolfang, stop posting links to your own website. Some of the information
(and the stuff you presented in Arhus, DK) you have is outdated, not
correct or misinterpreted. Please get an update to 2003 first.

And, the "official" website for JDO is http://www.jdocentral.com/ and it
is even worse than ODMG. All 15 vendors know that and are currently
throwing away version 1 of their standard and try it again with version
2. Those people had at least three tries on that stuff, in about 10
years. I'm not holding my breath about that version 2.

--
Christian Bauer


Reply With Quote
  #5  
Old   
Wolfgang Keller
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-12-2003 , 03:12 AM



Hi Christian,

than for those who do NOT know, you could add that you are involved in Hibernate - which is in a
you might call it competition situation with JDO

Instead of a posting that JDO is Bull***t you could become a bit more concrete in terms of saying
what are the problems with JDO - in case you did that already ... o.k.

And instead of telling somebody that something is "have is outdated, not correct or
misinterpreted. "
you could help us all by making it a bit more concrete and by formulating positive suggestions
how to impove e.g. JDO,
give me a hint what I got wrong and so on ...

Everything thta can be stated in a negative way can also be stated in a positive way, thus
helping the community to make their stuff better. It's no use if only you know and everybody else
is stupid - make us all smarter

Cheers

Wolfgang


Christian Bauer wrote:

Quote:
Wolfgang Keller <wk (AT) objectarchitects (DOT) de> wrote:

http://www.objectarchitects.de/Objec...s/products.htm

Wolfang, stop posting links to your own website. Some of the information
(and the stuff you presented in Arhus, DK) you have is outdated, not
correct or misinterpreted. Please get an update to 2003 first.

And, the "official" website for JDO is http://www.jdocentral.com/ and it
is even worse than ODMG. All 15 vendors know that and are currently
throwing away version 1 of their standard and try it again with version
2. Those people had at least three tries on that stuff, in about 10
years. I'm not holding my breath about that version 2.

--
Christian Bauer


Reply With Quote
  #6  
Old   
Wolfgang Keller
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-12-2003 , 06:10 AM



kyukawa <member43876 (AT) dbforums (DOT) com> wrote

Quote:
I'm looking for a faithful implementation of ODMG 3.0 Standard for
OODBs that is available for free downloading and that would be suitable
for an introductory college course on OODBs. I've looked at several
ODMG-compliant products, but prefer to use a faithful and complete
just to post what Christian Bauer did not post .. but which is an
alternative
to ODMG 3.0, JDO ... http://www.hibernate.org/

Quote:
is a persistence layer and their description says ..
Hibernate is a powerful, ultra-high performance object/relational
persistence
and query service for Java. Hibernate lets you develop persistent
objects
following common Java idiom - including association, inheritance,
polymorphism, >> composition and the Java collections framework.

have no idea whether it is considered a no no to post links to one's
own
stuff - so I do it :-).

Cheers

Wolfgang

PS: or should I first "get an update for 2003"? :-)


Reply With Quote
  #7  
Old   
Christian Bauer
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-12-2003 , 08:11 AM



Wolfgang Keller <wk (AT) objectarchitects (DOT) de> wrote:

Quote:
than for those who do NOT know, you could add that you are involved in Hibernate - which is in a
you might call it competition situation with JDO
I guess most people know.

Quote:
Instead of a posting that JDO is Bull***t you could become a bit more concrete in terms of saying
what are the problems with JDO - in case you did that already ... o.k.
There is nothing left to discuss.

Quote:
And instead of telling somebody that something is "have is outdated, not correct or
misinterpreted. "
you could help us all by making it a bit more concrete and by formulating positive suggestions
how to impove e.g. JDO,
give me a hint what I got wrong and so on ...
I'm doing that all the time, just not with your stuff. You mostly copy
content from other people and get it wrong sometimes. I'm sure you can
improve that yourself.

--
Christian Bauer


Reply With Quote
  #8  
Old   
Wolfgang Keller
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-12-2003 , 04:12 PM



Quote:
Instead of a posting that JDO is Bull***t you could become a bit more concrete in terms of saying
what are the problems with JDO - in case you did that already ... o.k.
There is nothing left to discuss.
Hmmm interesting ... In the Hibernate forum there's a posting
http://forum.hibernate.org/viewtopic...&highlight=jdo
that says ..
Hibernate will be JDO2 compliant if it becomes a good persistence standard.
Gavin is now member of the JDO expert group, mainly to define JDO2.
So, the short answer is "yes - Hibernate will be JDO2 compliant if possible"







Reply With Quote
  #9  
Old   
Christian Bauer
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-12-2003 , 04:27 PM



Wolfgang Keller <wk (AT) objectarchitects (DOT) de> wrote:

Quote:
Hibernate will be JDO2 compliant if it becomes a good persistence standard.
Gavin is now member of the JDO expert group, mainly to define JDO2.
So, the short answer is "yes - Hibernate will be JDO2 compliant if possible"
Welcome in 2003

--
Christian Bauer


Reply With Quote
  #10  
Old   
hantheman
 
Posts: n/a

Default Re: Looking for ODMG Implementation - 11-17-2003 , 08:43 AM



Quote:
And, the "official" website for JDO is http://www.jdocentral.com/ and it
is even worse than ODMG.
Agreed.

Quote:
All 15 vendors know that and are currently
throwing away version 1 of their standard and try it again with version
2. Those people had at least three tries on that stuff, in about 10
years. I'm not holding my breath about that version 2.
The easy way out is to make Hibernate the official standard :-)

It's good enough, just lacking ports...


Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.