It is possible to extend the configurability of various components of your application by performing custom extensions of the XML schema. This is often very important for adapters. We discussed how you could use the Spring framework to inject a configuration value into our adapter. Often you want not only to set these values in the EPN so that you can re-use the adapter, but you would like to make them as optional configuration that can be changed after the application has been initially deployed successfully.
We should take a moment to discuss an important feature of OEP related to deployment. When an application is developed, it is packaged into a single JAR file. This is often referred to as a module or OSGi bundle. Upon successful deployment, a folder is created in the server's applications directory and this JAR file is deployed there. It is important to note that at this time all the configuration files in the META-INF\wlevs directory are...