Julian Jewel's Weblog

Envers (Entity Versioning)

admin — Wed, 05 May 2010 15:13:20 +0000

A powerful library which helps developers to implement audit functionality through Hibernate. It uses a global revision number and for every transaction commit it increases the global revision number by one and created an entity record in the designated audit table. The default table would be end with the _AUD suffix. And all you need is to add @Audited annotation to the entities and add the event listeners within the hibernate session factory bean. Pretty cool!

java.lang.IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mappings as super class

admin — Wed, 05 May 2010 15:00:56 +0000

We had this new error from Hiberante – “java.lang.IncompatibleClassChangeError: class org.hibernate.cfg.ExtendedMappings has interface org.hibernate.cfg.Mappings as super class” – This is due to using the older hibernate entity manager/annotations libraries that were around when we upgraded to the newer 3.5.x version of hibernate. Hibernate includes the entity manager and annotations as part of the hibernate core library.

Distributed Ehcache 2.0

admin — Tue, 30 Mar 2010 18:20:17 +0000

We use Ehcache extensively with Hibernate and for temporary caches. I had to write a JMS based distributed cache listener to update cache on a cluster and that works fine. And the JMS based distributed cache is also transactional.

Try the new Ehcache which is part of the open source Terracota kit at http://www.terracotta.org/dl/oss-download-destination?name=terracotta-3.2.1-installer.jar&bucket=TCreleases&file=terracotta-3.2.1-installer.jar

Red Hat releases updated SOA platform, developer studio

admin — Tue, 30 Mar 2010 16:40:16 +0000

Red Hat recently released their updated SQA platform with JBoss Enterprise SOA Platform 5.0. MOre information here – http://www.theserverside.com/news/thread.tss?thread_id=59785

I’ve used other ESB’s including Mule, ServiceMix, Sonic etc. I think its a lot easier to integrate with these tools when compared to the JBoss Enterprise SOA Platform.

WAPT – Load and stress testing tool

admin — Wed, 24 Feb 2010 02:23:25 +0000

You would need this if you want to test your Web GUI for concurrent users. Easy to setup and install.

More info here – http://www.loadtestingtool.com/

Automate UI Testing

admin — Mon, 02 Nov 2009 19:37:07 +0000

Looking for a tool that can automate your UI testing.

Selenium Remote Control (RC) is a test tool that allows you to write automated web application UI tests in any programming language against any HTTP website using any mainstream JavaScript-enabled browser.

More information here –

http://seleniumhq.org/projects/remote-control/

Run WFE Open Source BPMS System

admin — Mon, 02 Nov 2009 19:19:41 +0000

Nice to see some initiative on a open source BPMS. Runa WFE is an OpenSource BPMS system, based on JBoss jBPM core. It is a cross-platform end user solution for business process development and execution.

More information at –
http://sourceforge.net/projects/runawfe

Mule 2.0 Released

admin — Mon, 02 Nov 2009 19:13:20 +0000

More information -

http://blogs.mulesoft.org/mule-ide-2-0-released/

Making Cloud a Reality for Enterprises via SOA Governance

admin — Sat, 17 Oct 2009 23:52:51 +0000

Making Cloud a Reality for Enterprises via SOA Governance – More at –
http://malaramakrishnan.sys-con.com/node/1038267

ZK – Open Source Ajax

admin — Tue, 22 Sep 2009 17:35:20 +0000

ZK is the most proven Ajax + Mobile framework available, designed to maximize an enterprise’s operational efficiency and minimize development time and cost.

With groundbreaking Direct RIA architecture, ZK simplifies and hastens the creation, deployment and maintenance of rich Internet applications.

For more information – visit http://www.zkoss.org/product/zk.dsp