Hibernate stongly recomand not use "session-per-operation antipattern",  meaning do
not open a new Session per each operation in a Business Transaction.

Please use the most common pattern in a multi-user client/server application is
session-per-request. A new Hibernate Session is opened, and all database operations are
executed in this unit of work.

Hibernate provides built-in management of the "current session" to simplify this pattern.
Start a transaction when a server request has to be processed, and end the transaction before
the response is sent to the client. Common solutions are ServletFilter, AOP interceptor with
a pointcut on the service methods, or a proxy/interception container.

Other best way is to get the "HiberanteSession and store in Thread Local" and fetch from Thread
local before open a new Session for any given Request.

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