Erroneous update of the table from jsf pages

[Cleofas]

Hello. Trying to update:

    public void updateSubcategory(Subcategory subcategory) {
if(subcategory == null) return;

Query query = getSession().createQuery("update Subcategory set name = :name where id = :id");

query.setParameter("name", subcategory.getName());
query.setParameter("id", subcategory.getId());

int result = query.executeUpdate();

}

On the line: Query query = getSession().createQuery("update Subcategory set name = :name where id = :id");

java.lang.IllegalArgumentException: node to traverse cannot be null!

I'm doing a similar thing to delete, delete everything works, and with some kind of trouble. ♪ ♪

[authera]

Try this:

String sql= String.format("UPDATE Subcategory set name =%s where id = %s", subcategory.getName(), subcategory.getId());
Query query= session.createSQLQuery(sql);