title: updating some column values in hibernate
body: <p>I have a table in which there are 14 columns. Now I have a object corresponds to the table in which I have only 5 values to be updated.<br>
  I am using saveOrUpdate method to either save/update the row. The issue is that when I use this method to update those 5 columns, all other 9 column values are set to null.<br>
  One solution is that I write update sql query to do the same but I want to use Hibernate API's not sql queries.<br>
  Is there any way to achieve that?</p>