state « Update « JPA Q&A

1. Detecting modfications in the persistent state stackoverflow.com

I know that during a update hibernate cand detect if any change has been done. If it is no, no sql request will be done. IS there a way to get this boolean ...

2. Hibernate one application? (save state) stackoverflow.com

Is there software which allows to hibernate (save state) of the specific application and then recreate it (maybe on other computer)? Is it possible to write such type of application?

3. Persistent State -- Hibernate. coderanch.com

An object that has an identity in the database and is associated with a Hibernate Session is in the "Persistent" state. An object that has an identity in the database, but is not associated with a Hibernate Session is in the "Detached" state. Any object that does not have an identity in the database is considered to be in the "Transient" ...

4. Persistent set in inconsistent state forum.hibernate.org

Hibernate version: 3.2.1.ga Hi, I have a situation where a set of entities become inconsistent with the database and I am not sure why. I add a subset of some entities to the set, and save it. I then add the remaining slightly more complicated entities to the set that I require, and save it. This occurs during a single transaction. ...

5. Nested Unit of Work possible? (Saving persistence state) forum.hibernate.org

Toplink supports nested Unit of Work sessions, which come in very handy to "undo" some persistence state changes. Example: (1) Create a new window and a new UoW, make some changes to the object graph (2) Create a dialog and a child UoW from the window's UoW, make some more changes to the object graph (3a) Press "Save" in the dialog ...

6. Checking "dirty" state of an object forum.hibernate.org

Hibernate version: 3.0.5 So it appears that it's just not possible to tell if an object has been changed when doing a save. I have a Web application that uses detached objects, and have written an interceptor for "onFlushDirty". My save method looks like this: Code: public PersistentObject save(PersistentObject persistentObject) throws EosException { Transaction ...

7. Current persistent state in SessionFactoryInterceptor? forum.hibernate.org

Hi, I'm using JBossAS 4.0.4 with Hibernate 3.0. I installed a SessionFactoryInterceptor and would like to compare the current persistent object state with a modified object's state. The Interceptor interface provides a method findDirty with a previousState parameter reflecting the object state as it was when the current hibernate session started. The previousState array therefore does not reflect the current persistent ...

8. Determining object state for persistence forum.hibernate.org

I have an object containing a Map where the StandardSet is persisted by the UserType implementation com.cpm.mainsite.usertype.common.StandardSetUserType, which retrieves from and saves to the database correctly. The problem is, when I change the only property of StandardSet, which is a map itself, by, for example, adding a new element to it, Hibernate doesn't recognize that anything has changed, and thus does ...

9. SaveOrUpdateEventListener - Object state BEFORE and after forum.hibernate.org

I'm trying to figure out how I can use a Listener in Hibernate to tell me the state of an object just before the object is updated in the database. Let's say I have an object "Car" with an attribute "color". I've created a listener which extends DefaultSaveOrUpdateEventListener where I override the onSaveOrUpdate() method: Code: public void onSaveOrUpdate(SaveOrUpdateEvent event) throws HibernateException ...

10. How to get object state (saved or unsaved)? forum.hibernate.org

Given an object instance and a session, is there any way to find out whether this object is saved or not ***(WITHOUT having to execute a select), can't check if id is null cause the key generation is done before the save command. *In Ruby's ActiveRecord this would be "object.new_record?". Any help would really be appreciated;