Question

I have the following code in the Try bloc :

// Session variable
Session session = null;
// Connection variable
Connection conn = null;

try {
...
// Get hibernate session
session = getHibernateTemplate().getSessionFactory().openSession();
// Get connection frojm session
conn = session.connection();
...
}catch{
...
}

And in the finally bloc i want to bloc all the related object of the connection with the database.

the closing of session makes us to close the connection ? or we have to have to close the connection before ?
Solution 1 :

finally{
try{if (conn!=null) conn.close();}ctach{}
try{if (session!=null) session.close();}catch{}
}

Solution 2 :

finally{
try{if (session!=null) session.close();}catch{}
}

In case of one of the two solutions before, can you explain the relationship between session and connection specially through pool way.

Answer 1

Second approach is enough. If you haven’t set hibernate.connection.release_mode, then default (auto) is used. According documentation:

By default, a JDBC connection is held until the session is explicitly
closed or disconnected.

In case of pool, closing connection means that connection is returned to pool.