What is difference between get() and load() method of hibernate session with respect to fetching?

Question

What is difference between get () and load() method? with respect to data fetching approach

 public static void main(String[] args) {
    SessionFactory factory= new Configuration().configure().buildSessionFactory();
     Session session = factory.openSession();
     Transaction tx = null;
      tx = session.beginTransaction();
       System.out.println("1 st time calling load method");
        Account acc = 
               (Account)session.load(Account.class, 180); 
             System.out.println("bal"+acc.getBalance());

          System.out.println("2nd   time calling load method");
          Account  acc1=(Account)session.load(Account.class, 180); 
           System.out.println("bal"+acc1.getBalance());


        System.out.println("1 st time calling get method");
     Account acc2= (Account) session.get(Account.class, accId);

      System.out.println("bal"+acc2.getBalance());    

      System.out.println("2 st time calling get method");

     Account  acc2= (Account) session.get(Account.class, accId);

    System.out.println("bal"+acc2.getBalance());


     tx.commit();

   session.close(); 

}

I got following output

1 st time calling load method
Hibernate: 
/* load com.abcd.Account */ select
    account0_.ACCOUNTID as ACCOUNTID1_0_,
    account0_.ACCOUNTTYPE as ACCOUNTT2_1_0_,
    account0_.CREATIONDATE as CREATION3_1_0_,
    account0_.BALANCE as BALANCE1_0_ 
from
    a.MYACCOUNT account0_ 
where
    account0_.ACCOUNTID=?
bal3000.0
2nd   time calling load method
bal3000.0
1 st time calling get method
bal3000.0
2 st time calling get method
bal3000.0

From ouput it is clear that get method did not hit database.It behaves like load() method. Could any one tell me is this behavior correct.

Answer 1

As T Mishra states here:

1. By default, hibernate creates run-time proxies. It loads the objects as a proxy unless a fetch mode is specified or set to false.

2. That's because once the object is loaded in cache, the next subsequent calls perform repeatable read.

3. Although the state of this object changes from persistent to detached

The entity can be retrieved in 2 ways.

load() - returns the proxy object with an identifier.

get() - returns the complete object from database.

for more details click this link

Answer 2

Actually, both functions are use to retrieve an object with different mechanism,

1. session.load()

   It will always return a “proxy” (Hibernate term) without hitting the database. In Hibernate, proxy is an object with the given identifier value, its properties are not initialized yet, it just look like a temporary fake object. If no row found , it will throws an ObjectNotFoundException.

2. session.get()

   It always hit the database and return the real object, an object that represent the database row, not proxy. If no row found , it return null.