InfoQ

News

JRuby Roundup: RCov Port Available, Ribs For Hibernate Support, Parser Stats

Posted by Werner Schuster on Sep 03, 2008 03:30 PM

Community
Java,
Ruby
Topics
Data Access ,
Performance & Scalability ,
JRuby
Tags
JRuby ,
Parsing ,
ORM ,
JMX ,
RCov ,
Hibernate
The JRuby port of rcov is now available:
As of JRuby 1.1.4, the Java extension for RCov is complete, and all the tests pass, and it works faster than before (thanks to Charles, Thomas, and all the JRuby core team). We have fixed the last couple of bugs, and it's all integrated into RCov (so it's not a separate install).
The project is hosted at Github as a fork of rcov with the JRuby specific code. The port to JRuby was necessary because RCov uses native extensions to work.

Ribs is Ola Bini's latest project, an addition to the long line of ORM libraries for Ruby. Ribs builds on Hibernate for the ORM part (reported about a similar project called ActiveHibernate, which seems to be inactive. While the project is still in its early days, it's now available for installation by Gems:
jruby -S gem install ribs

The Ribs project is hosted at Github; the Readme provides an introduction to getting started with Ribs.

Finally, Charles Nutter continues performance investigations of JRuby. A ParserStats MBean was added to see how much time JRuby spends parsing (ParserStats MBean interface). While parser runs from file loads isn't something that can be significantly optimized by a developer, parser runs from eval (attribute NumberOfEvalParses) can give an indication of the code that use eval.

Related Sponsor

The Adobe Flash Platform provides everything you need to develop applications, content and video across operating systems and devices.

No comments

Watch Thread Reply

Educational Content

Bindings, Platforms, and Innovation

This presentation focuses on the Internet and separating myth from fact, history from the future, and the mundane from the imaginative. Bob Frankston presents a vision of what could and should be.

  •  Jul 02, 2009,
  •  

Orchestrating Long Running Activities with JBoss / JBPM

This article explores the use of JBoss and jBPM to implement design solutions that effectively address the issue of orchestrating long running activities.

  •  Jul 01, 2009,
  •  

Neo4j - The Benefits of Graph Databases

This presentation covers the use of graph databases as an optimal solution for data that is difficult to fit in static tables, rapidly evolving data or data that has a lot of optional attributes.

Realistic about Risk: Software development with Real Options

This session introduces Real Options and shows how it can help in running your project. Real Options is a decision-making process that can be used to manage risk.

  •  Jun 30, 2009,
  •  

Communication Flexibility Using Bindings

This article discusses the use of bindings on services and references (including the instance of non-configured bindings) as the means to implement SCA communications in a Web and SOA environment.

  •  Jun 30, 2009,
  •  

Writing DSLs in Groovy

After a short introduction to DSLs, Scott Davis plays with the keyboard showing how to approach the creation of a DSL by typing working snippets of Groovy code that get executed.

Scaling Agile with C/ALM (Collaborative Application Lifecycle Management)

IBM Rational and InfoQ present, Scaling Agile with C/ALM, an eBook showing organizations how to become “finely tuned software delivery machines” by enabling team integration and scaling.

Concurrent Programming with Microsoft F#

Amanda Laucher presents a real life enterprise application written in F#. She shows actual code snippets, explaining design decisions and suggesting how to use some of the F# constructs.