Realm Releases Object Database for Node.js

by James Chesters on  Nov 22, 2016

Realm has launched an open source object database for Node.js, allowing mobile developers to create and send pre-populated Realms to clients.

Three Ways to Get Core Data Multithreading Right

by Sergio De Simone on  Nov 26, 2015

At #Pragma Conference 2015, Marcus Zarra, author of Pragmatic Bookshelf Core Data, described three approaches to using Core Data in a multithreaded environment and tried to clear up how Core Data should be used in 2015.

NoSQL OODB with Smalltalk-based Ruby VM: MagLev 1.0 Released

by Werner Schuster on  Nov 15, 2011

The MagLev project has released version 1.0 of their Ruby VM. The Ruby implementation is based on the GemStone/S Smalltalk VM which comes with GemStone's distributed cache, ACID transactions, and persistence system (OODB). InfoQ caught up with Monty Williams of the MagLev project to talk about where MagLev fits on the NoSQL spectrum, and much more.

MagLev Ruby VM Now Available, Brings GemStone's Persistence to Ruby

by Werner Schuster on  Nov 21, 2009 2

The long awaited MagLev Ruby implementation, based on GemStone Smalltalk, is now available in a public alpha release. While not quite ready to run Rails, it does support frameworks like Rack and Sinatra. MagLev comes with full support for GemStone's mature distribution and persistence features.

ODBMS.ORG Adds Persistence Patterns Resources

by Dave West on  May 22, 2009 1

ODBMS.ORG has added persistence patterns to its collection of resources for educators, students, professionals, and open source practitioners. Three pattern collections comprise the initial offering in this area. A Best Persistence Pattern Award, is planned for any pattern submitted prior to May 29, 2009.

Clustered JRuby - Transparent Clustering of JRuby with Terracotta

by Werner Schuster on  Nov 26, 2008

Gemstone's Maglev Demo at RailsConf sparked a lot of interest. A new project experiments with bringing this kind of transparent clustering to JRuby using Terracotta. We talked to Fabio Kung who's been experimenting with this approach.

Martin Fowler Sees a Thaw in Frozen Thinking about Data Storage

by Abel Avram on  Nov 25, 2008 15

In a recent blog post, Martin Fowler, a renowned software thought leader, observed at last week's QCon that the deep freeze in thinking about databases in application architectures is thawing. The world has been stuck using RDBMS databases for every application use case, but the time has come to also consider RISC RDBMS or distributed document-oriented databases.

Object Relational Mapping - User Case Studies

by Steven Robbins on  Jul 24, 2008 6

Roberto Zicari, from, collected interviews and stories from several users of Object/Relational mapping technologies. The main point of the cases was around "impedance mismatch" between the object technology in the domain model and the relational technology in the data model.

Interview: Avi Bryant on DabbleDB, Smalltalk and Persistence

by Werner Schuster on  Jul 23, 2008

In this interview from QCon 2008, Avi Bryant talks about his Smalltalk web framework Seaside and DabbleDB. Also: Avi explains how DabbleDB uses Smalltalk images for persistence instead of an RDBMs and how to make Squeak scale.

Perst Embedded Database Releases Version 3.0

by Ian Roughley on  Jun 17, 2008 3

McObject® has released Perst™ version 3.0, a major upgrade of its open source, object-oriented embedded database system. Persist is dual licensed (commerical and GPL), allowing it to be used freely in non-commercial applications.

Interview: Avi Bryant on MagLev and GemStone

by Werner Schuster on  Jun 13, 2008

Avi Bryant talks about working on MagLev, a Ruby implementation built by GemStone. Avi explains the reasons for MagLev, the merits of GemStone's distributed OODB features, and more

MagLev: Gemstone builds Ruby runtime based on Smalltalk VM

by Werner Schuster on  Apr 30, 2008

OODB vendor Gemstone works on a Ruby VM called MagLev. Working with Seaside's and DabbleDB's Avi Bryant, Gemstone bases the Ruby runtime on their Smalltalk VM to offer performance and powerful persistence features. We talked to Avi Bryant and Gemstone's Bob Walker about the technology behind MagLev and the plans for it.

DB40 v7 and Increasing Popularity of ODBMS

by Alexander Olaru on  Dec 21, 2007 1

db4o has been growing fast lately, having recently released v7.0 beta of their flagship db4o embedded OODBMS, and claiming over 30,000 deployments of their open source ODBMS. Is this a sign of changing times reflecting the ODBMS landscape?

Gemstone OODB to support JRuby, Rubinius

by Werner Schuster on  Aug 06, 2007 1

Gemstone is working on Ruby support for their Object Database products, starting off with JRuby. We talked to Alan McKean from Gemstone about what's to come, technical details and Gemstone's plans with Rubinius.