On Friday, January 10, 2003, at 04:44 PM, Schnitzer, Jeff wrote:
IMHO, trying to create a general-purpose persistence mechanism that
abstracts both RDBMS and ODBMS data stores is foolish. One of the
Jeff, I couldn't disagree with you more. To attract RDBMS guys you
need to support RDBMS
On Fri, 2003-01-10 at 22:44, Schnitzer, Jeff wrote:
Which is probably why no-one has developed a commercial solution for
the
problem.
Eh? What was Gemstone/J?
I have no idea. It is not a product that I am familiar with. But if it
is as you suggest, a native CMP store such as the one I
söndagen den 12 januari 2003 kl 01.54 skrev Pete Beck:
Why not, it would be much more efficient?
I am somewhat misquoting You above ... to stress ... that of course
there could be another acronym ... but RDBMS/OODBMS ...
---
This SF.NET
On Thu, 2003-01-09 at 19:32, Dan Christopherson wrote:
Probably the second biggest thing (after fear of change) that caused
ODBMS's to be stillborn: Will insert corporate standard reporting
tool work with it? No!?!?! How do you expect to sell it?
Which is probably why no-one has developed a
From: Pete Beck [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 10, 2003 12:36 AM
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-user] Cmp vs hibernate
On Thu, 2003-01-09 at 19:32, Dan Christopherson wrote:
Probably the second biggest thing (after fear of change) that caused
ODBMS's
On Wed, 2003-01-08 at 22:45, Matthew Baird wrote:
I disagree with your statement of
Let's face it, O/R mappings will never be very efficient.
Both OJB (to which I contribute) and Hibernate (which I watch closely)
approximate raw JDBC performance in most cases, and can exceed it in many
:
Subject: RE: [JBoss-user] Cmp vs hibernate
On Wed, 2003-01-08 at 22:45, Matthew Baird wrote:
I disagree with your statement of
Let's face it, O/R mappings will never be very efficient.
Both OJB (to which I contribute
On Thu, 2003-01-09 at 14:02, Matthew Baird wrote:
so you are promoting using what?
No promotion I am afraid, merely an observation.
Comparing CMP with persistent object frameworks is not really a fair
comparison.
Comparisons are odourous as Shakespeare once wrote. :-)
In my mind, it is like
Matthew Baird wrote:
couple notes:
- try selling an enterprise level application that doesn't support
a standard rdbms on the backend (oracle/sql server/db2)
Probably the second biggest thing (after fear of change) that caused
ODBMS's to be stillborn: Will insert corporate standard reporting
they fell apart under certain conditions.
Eric
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Dan
Christopherson
Sent: Thursday, January 09, 2003 2:32 PM
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-user] Cmp vs hibernate
Matthew Baird wrote:
couple notes
they fell apart under certain conditions.
Eric
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Dan
Christopherson
Sent: Thursday, January 09, 2003 2:32 PM
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-user] Cmp vs hibernate
Matthew Baird wrote:
couple notes
A bit off topic, but I need to ask those who have explored...
Has anyone here used hibernate in preference to cmp? If so how has it worked
out for you in jboss? We are considering it or cmp. Hibernate certainly
seems more flexible, but I was thinking it doesn't abstract the app from the
data as
In addtion, I would like to see CMP and Hibernate compared with Apache
OJB: http://jakarta.apache.org/ojb/
Thanks,
David
--
LaBanca, Rick escribió::
A bit off topic, but I need to ask those who have explored...
Has anyone here used hibernate in preference to cmp? If so how has it worked
out
: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of LaBanca,
Rick
Sent: Wednesday, January 08, 2003 9:03 AM
To: '[EMAIL PROTECTED]'
Subject: [JBoss-user] Cmp vs hibernate
A bit off topic, but I need to ask those who have explored...
Has anyone here used hibernate in preference to cmp
onsdagen den 8 januari 2003 kl 17.23 skrev Bill Burke:
Will hibernate provide you with a distributed clustered cache solution?
JBoss 4.0 CMP will.
If You are using hsqldbr(eplikated) - it probably would ...
*hsqldbr(eplicated)
http://www.javagroups.com/javagroupsnew/docs/hsqldbr/design.htm
We are missing support for SUM and COUNT sql-function as well as
subqueries in CMP, which hibernate have. This has forced us into using
pure sql for this part to get it reasonable fast.
Also you don't need all dataobjects and interfaces in hibernate, so we
should try it soon, nut it would be nice
Why would you want to use hsqldb? Its not transactional.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, January 08, 2003 12:57 PM
To: [EMAIL PROTECTED]
Subject: Re: [JBoss-user] Cmp vs hibernate
onsdagen
A common usage for CMP entity beans seems to be for persistent objects
using an O/R mapping.
Although entity beans can generally act that way, that is by no means
all they amount to.
In fact Sun have a more light-weight spec for this purpose (JDO). I
can't help feeling that hybernate is nearer
, and Hibernate documentation goes over performance
extensively. Both are GREAT projects, but neither is CMP.
cheers,
Matthew
-Original Message-
From: Pete Beck [mailto:[EMAIL PROTECTED]]
Sent: Wed 1/8/2003 12:04 PM
To: [EMAIL PROTECTED]
Cc:
Subject: Re: [JBoss-user] Cmp vs
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