A resource adapter is a system-level software driver that a Java application uses to connect to an enterprise information system (EIS). The RAR plugin has the capability to store these resource adapters to an archive (Resource Adapter Archive or RAR) which can be deployed to a J2EE server.
The RAR plugin has only one goal:
Instructions on how to use the RAR plugin can be found here.
To provide you with better understanding on some usages of the Plugin Name, you can take a look into the following examples:
Here are some references you can use to know more about Resource Adapter Archive.