data « Update « JPA Q&A





1. Problems when data save on database by Hibernate    stackoverflow.com

I'm trying do save data to database by help of Hibernate , in Java. But when ? run codes , ? had lot of problems. Can anyone help me about that? Thanks...

My ...

2. JPA: What's a good way to update data from an external source?    stackoverflow.com

I have some text files, from an external source, from which data is parsed. The output of the Java based parser is a list of Java objects representing the parsed data. ...

3. Unable to persist the data in hibernate    coderanch.com

Hi, I am just started using hibernate. I am able to retrieve the hibernate data from the database but failing to insert the same to the table. Please let me know the mistake I have made! CD.java CD cd1 = new CD("Music1","artist1",new Date(),9.99); CD cd2 = new CD("Music2","artist2",new Date(),9.99); Configuration cfg = new Configuration().addClass(CD.class); /* Properties properties = cfg.getProperties(); Enumeration enum ...

4. Hibernate Made Easy: Simplified Data Persistence with Hibernate and JPA    coderanch.com

Hi Cameron, Some time ago I read Java Persistence with Hibernate from Manning. It seems to be a very detail-oriented title and covers a lot of ground however wading through >900 pages is not an easy thing to do. Is there anything in your book not covered in G.King's and C.Bauer's book and what makes your book easy to read? BR, ...

5. Hibernate re-writting dirty data    coderanch.com

Hi So I've got a web application that is working perfect reading and writing the DB. I also have a background process that reads and updates a table every minute then goes to sleep. When it does the read it has the old objects. It hasn't read the new changes from the DB and I can't seem to force it to. ...

6. Hibernate: How to tell the DB who is updating data    coderanch.com

Welcome to the JavaRanch, Mike! If you're hoping to connect to the database with the end user's ID and password, that's a problem. In Enterprise environments such as webapps, efficiency is provided by use of a connection pool. Because it's faster to recycle an existing connection than to open a new one, the pool manager constructs connections as needed, but then ...

7. hibernate does not save data    forum.hibernate.org

public void save(LookupTablePojo obj) { try { System.out.println("---ID before: "+obj.getId()+" ----- "); getHibernateTemplate().save(obj); System.out.println("---ID after: "+obj.getId()+" ----- "); ...

8. Data hasn't been saved in database    forum.hibernate.org

I'm facing an issue that really caused me headache. That is, when I update or create new object, the return result of HQL execution telling me that it has been successful ( I also flushed the session ). However, when I retrieve the object, system returns me no value. Summary: 1/ Execute update of insert( flushes session already ) : return ...

9. Unable to see any any persisted data using CMT/Weblogic8.1    forum.hibernate.org

I'm sorry that this is such a basic question, but I have not been able to figure out why Hibernate is not persisting my data. I am trying to use Hibernate2 within my session beans and let the session beans manage the transactions (CMT). However, although the code acts like everything is ok and no exceptions are thrown, I never see ...





10. Using Hibernate to do updates on large amounts of data...    forum.hibernate.org

I'm running Hibernate 2.1 on Sybase ASE 12 and am having problems getting performance up on a batchlike update operation. I do a find() and fetch about 90K of instances to a List and then iterate the List and update properties on about 25% of them and everything seems fine and speedy (when using update() ) up until I do the ...

11. old data shows up on screen after successful update    forum.hibernate.org

We are closing the session and setting the ThreadLocal object to null at the end of the request. In this particular case, the save and fetch are being done within the same request, so the session is not closed in between the save and fetch. This is what we were doing- I- For every transaction/request- a) perform database operations( as described ...

12. Change not being persisted to data store    forum.hibernate.org

Hi there, I have an object called Part which has a simple String field called filename. When Parts are initially persisted to the database the field seems to be set just fine. However, when I reretreive the object from store, alter the filename, and then persist it again, the change doesnt get persisted. Strangely, if I change the filename AND I ...

13. Unable to save data to my database    forum.hibernate.org

Newbie Joined: Fri Jun 18, 2004 11:33 am Posts: 6 Location: Pennsylvania, USA Here's a code sample that im trying to use to save new users to the database, or update a user if it does not yet exist. When I get to the "tx.commit()" line the program throws an exception. I'll include the exception below the code public void createUser(String ...

14. Can change data but not save new data    forum.hibernate.org

Newbie Joined: Fri Jun 18, 2004 11:33 am Posts: 6 Location: Pennsylvania, USA I'm testing hibernate using a session facade bean. When I run the createUser method and I pass it an existing username it changes the data in the db, but if I send it a new username/password it does nothing and bombs out on tx.commit(). Here's the offending session ...

15. Retrieving persisted data    forum.hibernate.org

I have 2 very simple test classes: Person: that has an Id, Name and a List of Books Book : that has a Id, Title and a PERSON_ID The releastionship is that a Person can have many Books. I'm using a one-to-many relationship to map this. I can persist the data to my database, (although an extra column is created in ...

16. Problem persisting data for a table where there pkey    forum.hibernate.org

Hi, I am unable to persist data for a table where i dont have a primary key or unique key. how do i store data in such a case.I will be checking this on application side. Does the session class have a method to retrieve data that is not based on primary key or unique id Please let me know as ...





17. Any tool can save database data into xml ?    forum.hibernate.org

18. HibernateContext not persisting data???    forum.hibernate.org

Newbie Joined: Thu Jan 20, 2005 3:02 pm Posts: 13 b]Hibernate version: [/b] 2.1.8 Name and version of the database you are using: MySQL 4 JBoss version: 4.0.1sp1 Hello, I've switched over from using the HibernateUtil to the new HibernateContext to obtain and use Hibernate Sessions. I have the following usage scenerio: Web (ServletContextListener) --> Command (EJB) --> DAO (Contains Hibernate ...

19. A 'non-feature' or 'bug' in Hibernate when saving data??    forum.hibernate.org

Hi, I have a wierd problem when saving data in a specific scenario. Since this can potentially cause havoc, I am hoping someone can provide a solution. I have 3 objects. ObjectA is mapped in Hibernate using .hbm file ObjectB is a member of ObjectA and does not need to be stored. ObjectC is a member of ObjectB and is mapped ...

20. Why the data is never updated?    forum.hibernate.org

21. Update table without losing the data    forum.hibernate.org

Hi All, I created a project with Hibernate as ORM. At this time i'm using this project, but i created a newer version of it. Is there a posibillity to update the database without losing all the data ? Example : I have a client. Code: public void Client { private long id; private String ...

22. I have a problem about updating data with object from xml    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp I have two associated objects that have a bidirectional one-to-many association,I have exported their data to external xml sucessfully.Then I plan to import the xml data to the database and overwrite the object if it exists, or create new object if the row doesn't exist.When I overwrite, it does work, but ...

23. transtraction rollbacked but data updated?    forum.hibernate.org

Hi Guys, I tried to do some db operations( load, delete and update) in one transaction, after some steps I throw some exception and let the transaction rollback, but the db can not return to the state before I begin transaction, there are some data has been updated. does any body know what's the problem it is? Thanks

24. Please help, data not saving in db    forum.hibernate.org

the prob im having is the everything seems to work fine.. but no data is actually store in the database. my config Code: hibernate.dialect=net.sf.hibernate.dialect.MySQLDialect hibernate.connection.driver_class=com.mysql.jdbc.Driver hibernate.connection.url=jdbc:mysql://localhost/element hibernate.connection.username=element hibernate.connection.password=password hibernate.show_sql=true hibernate.autocommit=true my code Code: import net.sf.hibernate.Session; import net.sf.hibernate.SessionFactory; import net.sf.hibernate.cfg.Configuration; import com.wirednorth.element.model.User; public class HibernateTest { public static void main(String[] args)throws Exception{ User ...

25. Can't save data in database    forum.hibernate.org

26. Problem with persisting XML data    forum.hibernate.org

Hi, I am mapping XML element to database. Facing problem in persisting date property. In XML String date is coming in the format 'yyyy-MM-ddTHH:mm:ss.SSSz'. My POJO and XDoclet for timestamp is as follows: /** * @hibernate.property properties-name="UNIQUE_EVENT_KEY" type="java.util.Date" not-null="false" column="SERVERTIMESTAMP" node="SERVERTIME" */ public Date getEventTime() { return eventTime; } [b]Hibernate has org.hibernate.type.TimestampType class whic has hardcoded time format as yy-MM-dd HH:mm:ss. ...

27. Saving persisted data into the database    forum.hibernate.org

Newbie Joined: Fri Oct 14, 2005 11:42 am Posts: 9 Location: Madrid, SP Hibernate version: 3 Mapping documents: ...

28. Problem updating data    forum.hibernate.org

I am having trouble updating data on a web page. I am using AJAX to call a servlet which in turn uses hibernate. My problem is when the data is changed in the database (at the minute this is only done manually with sql scripts), it is not changed in the results of the hibernate queries, so its showing "old" data. ...

29. Can not remove data after calling merge    forum.hibernate.org

Hibernate version: 3.2.0.cr2 Hibernate Annotations: 3.2.0.CR1 Hibernate Entity Manager: 3.2.0.CR1 EJB3 version: EJB-3.0 RC8-FD JBoss version: 4.0.4.GA Name and version of the database you are using: Ingres 3.0.105 Full stack trace of any exception that occurs: Code: 13:22:20,140 WARN [JDBCExceptionReporter] SQL Error: 4615, SQLState: 5000B 13:22:20,140 ERROR [JDBCExceptionReporter] An error occurred while deleting a record. 13:22:20,140 ERROR [AbstractFlushingEventListener] Could not ...

30. Cannot save data into InnoDB table.    forum.hibernate.org

For some reason I cannot save data into my InnoDB tables via hibernate. The InnoDB tables are being created properly, however when I execute my transaction the data does not get saved. If I manually insert the data via phpMyAdmin then it works perfectly. Im not sure what I am missing. Here is my java code: Code: Customer ctmr = new ...

31. hibernate updates data by itself. WTF?    forum.hibernate.org

ok, this one is even stranger: i just tried to load data from the problematic table using createCriteria(MyBean.class). hibernate UPDATED! my table a few hundered times (probably once per row) during the list() call: hstar.data.ArtikelEingangBean */ update Artikeleingang set lieferung=?, artikel=?, bestellteMenge=?, menge=?, mwstProzent=?, preisBrutto=?, preisNetto=? where uid=? what's going on here?

32. Why get dirty data    forum.hibernate.org

I have following code: Code: try { // session.beginTransaction(); CallableStatement st = session.connection().prepareCall("{call storedProcedure(?,?,?,?,?,?,?,?)}"); //insert one row into table ....//set the parameters ...

33. Can't see the save data in DB    forum.hibernate.org

34. Updates when data is not changed    forum.hibernate.org

In my application, data gets loaded from screen search feature for an entity. Then the user can change data and click update. I use struts. In the DAO layer after all validations, i load a hibernate object, set new values and do a save() and flush(). It inserts or updates the data fine. My issue is when the user does not ...

35. Data not getting saved    forum.hibernate.org

hi all I have problem saving my objects. My object hierarchy is something like this. I have class A. this is extended by B and C. In A, I have a list of Questionnaires. In Questionnaire, I have list of Answers. I have a class D which has both B and C. I have a controller which calls a service SERVICE1. ...

36. Problem with "dirty" data    forum.hibernate.org

Hi, I'm new in hibernate world and I need some help :) My configuration Hibernate version: hibernate 3 with webwork framework Name and version of the database you are using: MySQL 5.x One of my mapping files: - -

37. Using twice the same persistent data in different classes    forum.hibernate.org

Hello! I'm considering using Hibernate, so i'd like to know whether it supports using data from the same table in different persistent classes without creating it twice in memory. For example: I've got to database tables, PERSON and ADDRESS, which are related by ADDRESSID. So i create two persistence classes: class Person { Address a; ... } class Address { ... ...

38. data updated/not updated?    forum.hibernate.org

This is strange. Try to use seperate session to retrieve and update. public void updateTopicReply(Integer id,Integer reply) { Topic topic = null; Session session = null; Transaction tx = null; // For retrievel session = HibernateSessionFactory.currentSession(); topic = (Topic) session.get(Topic.class, id); session.close(); //For update session1 = HibernateSessionFactory.currentSession(); reply=reply+1; topic.setReply(reply); tx = session1.beginTransaction(); session1.update(topic); tx.commit(); session1.flush(); session1.close(); }

39. Problem with updating data with HibernateTamplate    forum.hibernate.org

I have problem with updating data... My goal: I need to generate statistics of offer's display count. When offer is displaying I want to update offer's stat from from current date, of current type. When I invoke getHibernateTemplate().saveOrUpdateMethod() after updating object property, nothink happens - value in database is not changed - I don't get any exceptions. My Hibernate version: 3.2.2 ...

40. Unable to Persist Data    forum.hibernate.org

Author Message russray Post subject: Unable to Persist Data Posted: Fri Mar 28, 2008 6:16 pm Beginner Joined: Thu Dec 08, 2005 12:18 pm Posts: 21 Location: Birmingham, Alabama Okay, first let me apologize for such a basic question..... What I have done is created a MYSQL database. I have used MyEclipse to reverse engineer the source code for ...

41. How to save the data into table forever    forum.hibernate.org

I integrated hibernate with spring and save the in the dao impl class as the following,getHibernateTemplate().saveOrUpdate(Obj),when user click the save button of the web page,the method will called.But i found that the data will be in the table after the button is clicked only for a moment,after a while the data lost from the table,I don't know why?because of the transaction ...

42. Updating/Fushing strategy for huge amounts of data    forum.hibernate.org

Hi, I was wondering if their is a best practice around for updating/flushing huge amount of data. I have mapping on a table of 65000 rows and about 50 columns (some of them are more then 1000 bytes long). Now I want to retrieve all entries in a n object collection. Works fine without problems. I have them in a List. ...

43. data not saved in database    forum.hibernate.org

Author Message shilpa21 Post subject: data not saved in database Posted: Thu Oct 02, 2008 9:13 am Newbie Joined: Thu Oct 02, 2008 8:59 am Posts: 1 Hi All, I am trying with a sample application for learning hibernate. I am using hibernate 3 with MySQL database. I want to save a sample object-Event-(which has only 2 properties 'id' ...

44. Problem with persisting XML data    forum.hibernate.org

Hi, I am trying to read objects from XML and persist into DB through hibernate. The below peice of code is able to extract the object but the session.save() method is throwing a ClassCastException because it is expecting the associated object in place of its id. Please suggest how to fix this problem. Code: ...

45. data not updated    forum.hibernate.org

Localisation parcelle = getRemoteParcelleDao().findById( selectedParcelle.getId()); if (parcelle != null) { LOG.debug("PARCELLE EXIST WILL BE UPDATE " + selectedParcelle.getId() + " " + selectedParcelle.getLieuDit() + " AND ...

46. data not persistent in postgres    forum.hibernate.org

org.hibernate.dialect.PostgreSQLDialect org.postgresql.Driver jdbc:postgresql://localhost/pgtest pgtest pgtest true ...

47. how to detect data updated by external application    forum.hibernate.org

In my Java application, i am using "saveOrUpdateListener" to detect data update in the database. It works fine as long as the change is done by own application and no longer trigger any callback when the change is done by another application, e.g. mySQL browser, running an update command. I wonder if there is any way i can detect the data ...