What is the use of Hibernate batch processing

Question

I am new to hibernate i have doubt in hibernate batch processing, i read some tutorial for hibernate batch processing they said

Session session = SessionFact         


        

Answer 1

No. Don't initialize the session in the for loop; every time you start a new session you're starting a new batch (so you have a batch size of one your way, that is it is non-batching). Also, it would be much slower your way. That is why the first example has

if( i % 50 == 0 ) { 
  //flush a batch of inserts and release memory:
  session.flush();
  session.clear();
}

that is what "flush a batch of inserts and release memory" was for.