Invoking an application module from a Java servlet

We have discussed the basic configurations and metadata files required for running an ADF web application. This is very easy if you build an application by choosing a Fusion web application template. JDeveloper will take care of managing all the metadata files-dependent libraries.

What if you want to call services exposed by an application module from a non-ADF web application?

There are two approaches:

• Using Configuration::createRootApplicationModule(String qualifiedAMDefName, String configName) to create an appropriate application module instance, and then calling desired methods on it

• Using ADF Model APIs for accessing business methods exposed through data control

These approaches are discussed in the following sections.

Using Configuration::createRootApplicationModule() in HttpServlet

You can call createRootApplicationModule() on the Configuration class to instantiate an application module in a Servlet class. While doing so, make sure you...