Norman Richards's JBoss: A Developer's Notebook PDF
By Norman Richards
JBoss is an open resource J2EE software server that has accomplished a certain quantity of industrial good fortune. during this quantity Richards (a JBoss developer at JBoss Inc.) and Griffith (a software program improvement advisor) current an example-driven consultant that demonstrates the code used for fitting and operating JBoss, deploying an software, making a whole program, connecting to a true database, making use of protection, logging, configuring patience, coping with and tracking JBoss.
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Extra info for JBoss: A Developer's Notebook
Open the JMX Console in your web browser (http://localhost:8080/jmx-console). Near the top of the screen you will see the JMImplementation domain, which has three managed beans (MBeans), as shown here: JMImplementation • name=Default,service=LoaderRepository • type=MBeanRegistry • type=MBeanServerDelegate Selecting the Loader repository brings you to the management interface for the loader repository (see Figure 4-1). Developer's Notebook 4-1. The loader repository MBean 59 60 We can use the displayClassInfo operation, which is shown in Figure 4-1, to find out what JBoss knows about the class.
Whatever you see there is what JBoss currently has deployed. You will see a temporary copy of everything you see in the lib and deploy directories. JBoss doesn't keep an open handle on any of the files in those directories. This is very important if your operating system keeps a lock on files while they are being read. war directory, you will see the changes reflected the next time you access the application. That's all you have to do to test out a minor change to a live web application. You can update JSPs and static web content, but unfortunately you can't update the deployment descriptors.
Users can log into the application and manage a personal list of items they are working on. The web application is a JavaServer Faces application that talks to Enterprise JavaBeans? on the back end. Although it is fairly simple structurally, few J2EE applications get any more complicated than this. The source code for the application is in the todo directory of the example code. You'll want to keep the application code within reach as we go through the example because we won't be focusing on the code.
JBoss: A Developer's Notebook by Norman Richards