hibernate multiple records update in a single statement

[somu sharma]

I have table and want to update each Salary record for each ID

ID FirstName Salary
10 AAAA 10,000
15 BBBB 5000
17 CCCC 7000
19 DDDD 8000

But what happening is update statement is executed for each row.Suppose I have 1000 records then update statement is executing 1000 times.Is there any better way I can achive this.
I am doing as ,

    RetriveDataMethod()
    { 
    List listIdSalary = retriveIdAndSalary();
    Iterator itr =listIdSalary.iterator();
     while(itr.hasNext()){
       Object[] idStr = (Object[]) itr.next();
       String id = (String)idStr[0];
       String salary = (String)idStr[1];
       updateDataMethod(id,salary)
     }
    }

    updateDataMethod(String id,String salary)
    {
      Session session = sessionFactory().openSession();
     session.beginTransaction();
     String s = "update table set salary=:salry where id=:id"
     Query q = session.createQuery(s);
     q.setString("salary",salary);
     q..setString("id",id);
     q.executeUpdate();
     session.commit();
    }

Is there way i can optimize this code ?

Thanks

[Piyush Mangal]

try using hql if you want to update all the records at once.