Clark D. Richey Jr.

Often, when someone asks how we are going to scale the Web application we're about to develop, we look at them, smile, and say, "Not a problem - we'll just cluster the application servers." Clustering our application across multiple servers provides us with the ability to handle large volumes of traffic and to scale systems by adding additional servers to the cluster. In addition to providing scalability, application clusters make the system more robust by allowing for automatic system failover when a server fails. This way when one server goes down the application continues to run, albeit with slightly decreased performance. While it is true that the current generation of application servers makes it relatively pain-free to create a cluster, there are still several significant, if often overlooked, design issues that must be taken into account now that the system is... (more)

Service-Oriented Development with Spring Framework

SOA is an Enterprise concept, but in order to achieve a SOA you either have to Service Enable existing applications and / or you have to build new applications that can take part in a SOA. This latter approach requires service oriented development. This talk demonstrates an approach for project composition utilizing implementation and interface projects using Java and Spring Framework. Through the use of a dependency injection technology, this new technique allows for the creation of projects that are easier to understand, maintain and extend. As a direct result you end up with p... (more)