At first,i think Hibernate Criteria is the Object-oriented of sql norms,but later discovered that Hibernate only implement the retrieve function but not to the delete and update.
Although Hibernate itself have one object delete and update method, but sometimes also need batch operation, of course, we can used HQL, when conditions are diversified, using the criteria in this way(criteria way) would be better.
So why not hibernate have delete/update criteria.
Any suggestion or solution?

You can easily do batch update/delete with HQL.

http://www.hibernate.org/hib_docs/v3/reference/en/html/batch.html#batch-direct

yes,i can use HQL.But if the condition in the where clause is very complex and changeful,use the criteria way to update and delete is better.

I'm also very interested for delete by criteria and think it will be very usefull.

Is it still not possible?

Not yet!