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Next-Generation Object-Oriented Databases

5 replies on 1 page. Most recent reply: May 26, 2008 9:45 PM by art src

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Frank Sommers

Posts: 2642
Nickname: fsommers
Registered: Jan, 2002

Next-Generation Object-Oriented Databases Posted: May 9, 2008 4:00 PM
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In this interview with Artima, Gafni explains how OO databases support agile development, and how they co-exist with relational databases in an enterprise:

http://www.artima.com/lejava/articles/javaone_2008_anat_gafni.html

What do you think of db4o and the second generation of OO databases?


zqu dlyba

Posts: 2
Nickname: zqudlyba
Registered: Jan, 2007

Re: Next-Generation Object-Oriented Databases Posted: May 12, 2008 4:50 AM
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DOA - Dead on Arrival.

Morgan Conrad

Posts: 307
Nickname: miata71
Registered: Mar, 2006

Re: Next-Generation Object-Oriented Databases Posted: May 12, 2008 12:18 PM
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Even though I've grown fairly comfortable with Spring/Hibernate and it's quirks and issues, (a co-worker does all the hard work and SQL queries) I used db4o on a small prototype project and thought it was even better than sliced bread.

Tim Nash

Posts: 6
Nickname: tim08
Registered: May, 2008

Re: Next-Generation Object-Oriented Databases Posted: May 24, 2008 3:44 PM
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Nice post. As a zope developer I am aware of the advantages of using an object database and I am looking forward to trying db4o. Currently however I am interested in google's 'big table' which is probably more like an object database than a relational database (schema changes are easy). db4o is aimed at the java/c# crowd. That is probably a good marketing choice but they usually work in conservative environments (eg. fortune 500). Slow adoption. Zope is getting ported to jython. I wonder if db4o would out perform zodb in a jython version of zope?

Robert Greene

Posts: 1
Nickname: rgreene
Registered: May, 2008

Re: Next-Generation Object-Oriented Databases Posted: May 26, 2008 8:31 AM
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Why?

art src

Posts: 33
Nickname: articulate
Registered: Sep, 2005

Re: Next-Generation Object-Oriented Databases Posted: May 26, 2008 9:45 PM
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In most of the enterprise application I have been involved with, interaction with an SQL client/server DB has been a big time suck during development. It is also the most likely cause of performance issues.

At least if you get a DB with MVCC (Multi Version Concurrency Control) you don't get chronic deadlocks.

The ORM tools are complex, buggy, and incomplete. In practice the object model has always been seriously compromised by mapping to a relation database.

ORM can't work in general with a remote data store. Distribution boundaries don't disappear, databases are remote, and "don't distribute objects" is a solid principal for software architecture.

Deployment to the database has been the most problematic part of the deployment process.

There is plenty of scope for improvement on the status quo. I don't know if db4o or NGOODB's are the answer, but not solving the problem consigns us to the enormous amounts of wasted developer hours, and dramatically increased time to market for enterprises.

I am not giving up on the idea that there is something better than SQL + JPA.

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