Reputation: 720
When I run the following code:
MyObject myObject = ...
session.saveOrUpdate(myObject)
List<MyObject> list = session.createCriteria(MyObject.class).list()
I get the following exception:
org.hibernate.StaleStateException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1
If I execute .list() before .saveOrUpdate, there is no exception. Any idea why does an exception is thrown in that flow, and how can I solve it?
Thanks
Upvotes: 1
Views: 156
Reputation: 2955
It's hard to answer it without the mapping of your entity and without the code you use to instantiate it.
This error can happen if you manually set the object id when the mapping says it should be auto-generated.
The error only happens when you call .list()
because that's probably the moment Hibernate flushes the saveOrUpdate
operation. Again, it's hard to tell without the rest of the code.
Upvotes: 1