Bonnie MacKellar wrote:
Yes, but if I can't get this tool running in our environment (Weblogic, MSSQL, JTurbo), it won't help us at all.
There are happy OJB + WebLogic users. Several of them migrated from WebLogic CMP to OJB.
There are also happy OJB + MSSQL users.
I don't know of any users using the JTurbo driver.
We have excellent support for the JSQLConnect driver from http://www.j-netdirect.com/.
I know that there are large differences in the available SQLServer JDBC drivers. And I have no direct knowledge if there are any problems with JTurbo +OJB.
If there are such Problems it will be possible to work around it.
OJB uses a Platform interface to abtract from the underlying jdbc driver and database. All platform specifics can be encapsulated in a PlatFormJturboImpl if required. We have done this sucessfully for a large range of databases and JDBC drivers. Including such extravagant platforms like Tandem Nonstop SQL databases!
We had ruled out Castor because we had not heard great
things about it.
There seems to be no more active development on Castor.
I am not familiar with Hibernate or Cayenne. I gravitated towards OJB because it looked a lot like the design for the persistence layer that I had already come up with (we all read the same papers I guess)
I agree. O/R is not rocket science. It is a well known and cartographed domain. So a good O/R implementation will make use of all the known best practices and patterns of that domain.
I sometimes say OJB has a "pattern driven" design, to reflect this best practise approach.
and because I had heard good buzz about it on other bulletin boards.
We evaluated TopLink about 2 years ago and decided against
it.
why? I have made good experiences with TopLink. The only problem we had was the price tag. But afaik this has changed a lot since there are opensource alternatives available.
cheers, Thomas
I don't know if things have changed in the meantime.
thanks, Bonnie
-----Original Message----- From: Armin Waibel [mailto:[EMAIL PROTECTED] Sent: Saturday, March 29, 2003 7:24 AM To: OJB Users List; Bonnie MacKellar Subject: Re: regression test errors
Hi Bonnie,
----- Original Message ----- From: "Bonnie MacKellar" <[EMAIL PROTECTED]> To: "OJB Users List" <[EMAIL PROTECTED]> Sent: Friday, March 28, 2003 7:24 PM Subject: RE: regression test errors
I was not at Mobius before 1999, so I really would not know...
Yes, this is for an important project and I am not feeling very good about this. The alternatives though, are to buy something or do it ourselves. Our company tends to be of the "do it yourself" mentality. Since what we need is exactly what OJB provides, it seems silly to replicate it. On the other hand, it is often easier to deal with bugs in your own code then with bugs in someone else's code.
I think this is the wrong way, because to implement your own layer you have to write thousands of LOC's and your 'own code project' will lead into the same problems. Use open source, if you got problems browse the sources, patch it or change it by your own. If you think OJB is not comply with your requirements try one of the other powerful open source persistence layer like Hibernate (very well documented), Castor, Cayenne. But keep in mind, none of these layer (including OJB) is 'bug-free' ;-) (and none of the commercial)
I would feel a lot better about this if the mail archives worked. My usual approach with this kind of system is to really sift through user archives, looking for similar experiences.
Sorry for the mail archive hassle, hope the apache admins will solve the problem soon.
Try to use http://www.mail-archive.com/ojb-user%40db.apache.org/ to browse the archive. or the older archive http://www.mail-archive.com/ojb-user%40jakarta.apache.org/
regards, Armin
Bonnie
-----Original Message----- From: Michael Duffy [mailto:[EMAIL PROTECTED] Sent: Friday, March 28, 2003 1:19 PM To: OJB Users List Subject: RE: regression test errors
Bonnie,
I'm responding to a note you sent to the OJB mailing list.
Is Mobius based in the NYC area? I knew a guy named Howard Deiner who worked at a company named Mobius. His tenure would have been prior to 1999. Just curious.
Also curious - will the system you'll be installing OJB into be a large production application? I've been getting OJB up and running for a smaller production project, and I'm nervous about it. I see all the problems on the mailing list and sketchy documentation and wonder what I'm getting myself into. JMHO, of course. Are you feeling the same way? Thanks - MOD
--- Bonnie MacKellar <[EMAIL PROTECTED]> wrote:
Thanks for the advice. This parameter is set in
C:\db-ojb-1.0.rc1\target\test\ojb\repository_database.xml,
right? Do I need to change anything else to modify this behavior?
I'm still trying to feel my way around this system. Basically, I have about a week to make a recommendation on using it, in a large project. Ease of use is an important consideration, especially to the powers-that-be who are managing this project.
Bonnie
-----Original Message----- From: Armin Waibel [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 26, 2003 6:42 PM To: OJB Users List Subject: Re: regression test errors
Seems a problem with the used sequence manager (SequenceManagerHighLowImpl). Try to run the test cases with SequenceManagerInMemoryImpl Do you get the same results?
__________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
--------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
