I am using the Update method of Hibernate to update a certain row.

I created my tablebean, populated it with the primary key, and then the secondary fields I want to change, and then executed the update:

TableBeanT newT = new TableBeanT();
newT.setID(..); // primary key
newT.setField1(..); // my update
getHibernateTemplate().update(newT);

The table also has some non-null columns. I didn't populate them in my bean, because I don't know/care what they are right now, I am not updating them.

However, Hibernate complains about inserting nulls into non-null columns. Is there a way to quickly save the non-null values of the existing bean and re-populate them into the new bean? Do I need to do a manual fetch before doing an update? Thanks

I don't know the Template thingy you are using (Spring?), but I can give a basic idea: Load the entity using the id, change the values you want to change and then flush the session (no need to call update, because the entity is still attached to the session and Hibernate tracks any changes).

Hi NewToHibernate2010, "". There is way in hibernate too. You have to use your own user type. If this type is same across all the tables and its not null field, you can make values using user type.

<type name="userType">
<param name="get-default">no</param>
</type>

This parameter needs to be set using User Type class. dynami-insert="true" dynamic-update="true" in element class in mapping file.