Having plugged my mentor’s musings it seems only fair that I do the same for my mentee, Andrew Hall. Andrew currently works in the Java 5.0 service team but in a previous role in test he became intimately acquainted with the WebSphere Real Time product. I mentioned the Metronome Garbage Collector following Gerry Cuomo’s demo at the WebSphere Service Technical Conference. You can read all about it (along with much more) in the developerWorks article to which Andrew has contributed.
Archive for the ‘Technology’ Category
Real-time Java
Tuesday, June 19th, 2007My Tasks
Tuesday, June 12th, 2007The WebSphere Application Server administrative console isn’t always the easiest beast to navigate and I often find myself having to repeat those five clicks to get back to the page I was just on a moment ago and wishing that there was some sort of bookmarking support. I’m therefore surprised I’ve failed to spot the My Tasks support in Version 6.1 before, which goes at least part of the way to solving that problem.
Performance Tuning Guide
Tuesday, June 12th, 2007The WebSphere Business Integration Performance Tuning Redpaper has now been updated to cover Version 6.0.2 of WebSphere ESB and Process Server. The information in this paper comes from the product development performance teams and, if anyone knows how to squeeze the last ounce out of these products, it’s those guys.
Service Life Cycle
Monday, June 11th, 2007Arnauld Desprets and Laurent Rieu are two of IBM’s European leaders in the SOA governance space so it’s worth reading their developerWorks article on implementing and enforcing a service lifecycle with WebSphere Service Registry and Repository. A reminder though that WebSphere Integration Developer isn’t the only mechanism to create SACL and OWL files.
REST and Web services in WSDL 2.0
Saturday, June 9th, 2007REST versus SOAP is one of those holy wars it doesn’t pay to get too passionate about. Each has its own merits, for example the simplicity of REST versus the transport neutrality of SOAP. It was therefore interesting to read a developerWorks article that describes how the HTTP binding in WSDL 2.0 enables REST-style interactions for Web services. As the author indicates, this support doesn’t let you do everything you could with a truly REST based service but it’s good to see the WS-* spec writers taking the move for simplicity on board.
JAX-RPC Web Services
Saturday, June 9th, 2007There is an interesting developerWorks article covering the JAX-RPC Web Services support in WebSphere Application Server Version 6.1. It demonstrates how this support alone can provide some of the benefits normally associated with an enterprise service bus, namely location transparency (WSDL endpoints can be overridden in the administrative console) and protocol transparency (SOAP/HTTP, SOAP/JMS or RMI/IIOP). As the article goes on to state, the combination of WebSphere ESB and Service Registry and Repository can give you much more dynamic behaviour when trying to achieve the first of these but if all you need is the ability to modify endpoints when, for example, moving from the development environment in to production, then this may suffice.
Creating your own mediation primitive
Saturday, June 9th, 2007The WebSphere Integration Developer InfoCenter contains a section on creating your own mediation primitive to sit on the palette alongside the standard set of primitives. If you prefer learning by example, then Russ Butek has a developerWorks article out that leads you through the steps to create and deploy a simple primitive that writes all or part of a Service Message Object out to the console. (A handy primitive to have in your toolkit in its own right.)
Registry and Repository Access Control
Thursday, June 7th, 2007If you’re going to put all of your services in to a single registry along with the artefacts that describe them then security is going to be important to you. WebSphere Service Registry and Repository has a comprehensive fine-grained access control mechanism based on the industry standard XACML. There is a developerWorks series starting which describes the details. (And no, I’m not just plugging it because Gary was once my mountain marathon partner!)
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