ADF Basics: Count number of records in LOV using LOV Accessor

Hello All

This post is about a simple requirement - How to count number of records in a LOV ?
I have seen this type of threads on OTN forum so here I am writing about it

We can make use of LOV Accessor to  count number of records in LOV as per selected source viewObject record, Here I am using Departments and Employees table of Oracle HR Schema