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21. How to integrate your Struts application with Spring? To integrate your Struts application with Spring, we have two options: · Configure Spring to manage your Actions as beans, using the ContextLoaderPlugin, and set their dependencies in a Spring context file. · Subclass Spring’s ActionSupport classes and grab your Spring-managed beans explicitly using a getWebApplicationContext() [...]

11. What is the difference between Bean Factory and Application Context ? On the surface, an application context is same as a bean factory. But application context offers much more.. · Application contexts provide a means for resolving text messages, including support for i18n of those messages. · Application contexts provide a generic way to [...]

1.  What is IOC (or Dependency Injection)? The basic concept of the Inversion of Control pattern (also known as dependency injection) is that you do not make your objects but describe how they should be made. You don’t directly connect your components and services together in code but describe which services are needed by which [...]

Q:How can you start a JTA transaction from a Servlet deployed on JBoss ? A: JBoss registers in the JNDI tree a JTA UserTransaction Object which can be user to manage a distributed transaction Q:What do you need to set-up a cluster with JBoss ? A: Basically starting JBoss with the “all” configuration contains everything [...]