My question is related to a confusion.

Consider an architecture consisting of web clients connecting to an app server which provides Beans to service requests. In turn the app server connects to a database using the vendor provided Type 4 JDBC drivers.

Can this entire setup be described as a Type 4 JDBC driver?
My assumption is that the bean-container communication can be considered as a DBMS independent protocol, the app server itself being a middleware which then communicates with the DB using its proprietory protocol.