I have similar problem mentioned in the below link. Kinldy help me to get a solution for the same. The question is about how to specifiy multiple discriminator columns in a single table inheritance statergy (multilevel inheritance).

viewtopic.php?f=9&t=963341

I absolutely don't understand the necessity of having Multiple discriminator columns.
Each entity record in the database must be unambiguously assignable to a concrete class.
The discriminator column is the holder of this information when you use single table inheritance strategy.
Java does not support multiple class inheritance, so why do you want map multilevel inheritance?

It's not to support multiple inheritance (i.e. a class with two parents) it's to support multi-level inheritance. Multi-level is fairly intuitive when using table-per-subclass, but not when it comes to table-per-hierarchy.

Say my class hierarchy is the following, and I want to use table-per-hierarchy:

Cat
--DomesticCat
-----Persian
-----Manx
--WildCat
-----Tiger
-----Lion

What I'd like to do is create the table CAT with discriminator columns TYPE and SUB_TYPE.

TYPE can have the values "DOMESTIC" and "WILD".
SUB_TYPE can have the values "PERSIAN", "MANX", "LION" and "TIGER".

The mapping would look something like: