1. "Session closed" error when trying to get a blob from DB using getBinaryStream() stackoverflow.comI'm using Hibernate 3.1 and Oracle 10 DB. The blob is defined as @Lob @Basic @Column in the Hibernate entity which corresponds to the relevant DB table. The error -java.sql.SQLException: Closed Connection- ... |
2. Hibernate session.get() Problem with UUID string ID stackoverflow.comI am having a problem with Hibernate.
The primary key of ID in mysql table is UUID style String. e.g.08fe2a75-5d40-4645-896d-aab2a3ac96b8
But I can not use |
3. session.get() returning null in hibernate stackoverflow.comIm working with hibernate and mysql, and i got it working to put data in the DB via hibernate, but when i try to retrieve data it always returns null... |
4. Hibernate: org.hibernate.AssertionFailure: null id don't flush the Session after an exception occurs coderanch.comDoes anybody know what the Hibernate stack trace below means (some details & fix tips)? I found a few sources on the web but not too explanatory, I think. Some references or links would also be appreciated about this issue and its cause. I mean I just would like to understand and fix the issue below. Also, seems to me the ... |
5. Call to session.beginTransaction() hangs for indefinite time forum.hibernate.orgHi All, I am using Hibernate for our application for a long time now. What we noticed that whenever our application is running for a long time (2-3 weeks) without any restart, it gets hang. Later we found its session.beginTransation() call which never returns. It does not throw any exception at any point of time. I am not getting any clue ... |
6. Clob session problem forum.hibernate.orgI am saving my page to the DB calling the dao.saveOrUpdate() method, after the page saves it re-loads and gets the newly saved data from the DB. When it tries to read the Clob field I get this error: java.lang.UnsupportedOperationException: Blob may not be manipulated from creating session Here is the code: int l = (int) qData.getAttribVal().length(); String clob = qData.getAttribVal().getSubString(1, ... |
7. Blob may not be manipulated from creating session forum.hibernate.orgHibernate version: Hibernate v3.2.5 Name and version of the database you are using: MySQL v5.0.45 JDBC: v5.1.10 Hi everyone, I did do some searching in this forum, and went over the Hibernate docs a bit, but I couldn't find anything useful. Basically, when I try to commit my blobs, i get the 'java.lang.UnsupportedOperationException: Blob may not be manipulated from creating session'. ... |
8. Session.get returning null for existing record forum.hibernate.orgI saw similar issue reported long back for hibernate 2 with key ID HB-1358 with Resolution : Won't Fix . I am facing similar issue right now in my development. I have a scenario where A is the parent class. For Eg: Code: Class A {} Class B extends A {} Class C extends B { } Class D extends B ... |
9. Null id entry(dont flush the session after an error occured) forum.hibernate.orgI am using MySQL database and hibernate 3.3 this is my table creation sql I've generated mapping file from MyEclipse database tool, namely hibernate reverse engineering trick Code: CREATE TABLE `db_test`.`table_test` ( `uid` mediumint(8) unsigned NOT NULL AUTO_INCREMENT, `username` varchar(15) NOT NULL DEFAULT '', `password` varchar(40) NOT NULL DEFAULT '', `safecv` varchar(10) ... |
10. java.lang.NullPoiterException at Session flush time forum.hibernate.orgHi, Hibernate experts, I came across a strange problem in hibernate2.0.2. I have a java object Client with serveral properties. The mapping is as follow(I omit the java source before I think there's little chance of mapping error since the error occurred at Session flush phrase): |
11. Multiple Sessions / UserType / Cache Problem forum.hibernate.orgHello, I'm successfully using mappings which reference objects in different data stores / hibernate sessions. Per suggestions in the forum, I accomplished this using a UserType which knows which hibernate session to load a class from. A problem occurs when using the UserType to load objects from multiple sessions in conjunction with caching. I'm hoping for feedback on: Code: [b]Steps:[/b] 1) ... |
12. Blob may not be manipulated from creating session forum.hibernate.orgHi But I'm getting the exception when I load the object. For example: PersistantItem item; item = new PersistantItem (); item.setValue ("Whatever"); session.save (); item = (Item) session.load (PersistantItem.class, item.getId ()); When I do setValue I create a new CLOB object with that value. The exception is thrown in session.load. Shouldn't "load" have the same effect as "refresh"??? Thanks |
13. Problems rolling back session.save() with transient object. forum.hibernate.orgAuthor Message sgarcia Post subject: Problems rolling back session.save() with transient object. Posted: Thu Jan 29, 2004 4:52 pm Newbie Joined: Thu Jan 29, 2004 2:51 pm Posts: 9 I am attempting to save a transient object and when the operation fails the transient object's id is set (this is bad) but the record is not inserted into the ... |
14. What happen is session is null ?? forum.hibernate.orgOkay when I read through Hibernate Documentation i found this piece of code : (Chapter 1 pg.6) Code: private static void closeSession() throws HibernateException { logger.debug("CLOSING SESSION"); Session currSession = (Session) session.get(); session.set(null); if (currSession != null) { logger.debug("CURR SESSION != NULL"); try { currSession.close(); } catch (Exception err) { err.printStackTrace(); } finally { ... |
15. session.replicate "null key for collection" NPE forum.hibernate.orgNewbie Joined: Fri Jan 30, 2004 6:48 pm Posts: 12 Hibernate experts, I'm trying to implement a client-side cache of server-side objects. Since these objects already have identifiers, it seems that the Session.replicate functionality is what I need. I'm getting the error specified in the subject when I attempt to replicate() a parent-child relationship that already has identifier values set. I ... |
16. null id in entry (don't flush the Session after an ...) forum.hibernate.orgHi, Can someone help me with this concern ? Many thx in advance I'm using hibernate 2.1.2, mysql V3.X, jdk1.4. I'm trying to insert two objects in the database public class Site { private Long id; private String url; private List news; } public class News { private Long id; private String author; private String title; private String description; private String ... |
17. Get number of open sessions forum.hibernate.orgsteve wrote: Sessions are not "managed" objects, meaning Hibernate does not keep track of opened sessions; that is the applications responibility. However, this should be easy enough to set up. The best approach would depend on your exact setup, but there are a number of ways to implement this. I am using the Thread Local pattern to create one Session for ... |
18. Blob may not be manipulated from creating session :( forum.hibernate.orgI have been constant vistor of hibernate site and forums and most of my questions either were answered in the doc or faq or by some postings. Today is my firsrt posting. I am trying insert a blob object in a table and i have followed guidelines by various postings and wiki pages. But whenever I enter a a record, it ... |
19. session.delete(string) not working as would seem natural... forum.hibernate.org |
20. session.delete(string) in Hibernate3 forum.hibernate.org |
21. How to filter max time record using session.filter? forum.hibernate.org |
22. "Blob may not be manipulated from creating session" forum.hibernate.org |
23. Why check for transient references during Session.save()? forum.hibernate.orggavin wrote: You must be using identity pk generation, in which case inserts happen immediately. I changed all of entities to use HiLo generation instead of native, but I'm still getting the same exception: org.hibernate.PropertyValueException: not-null property references a null or transient value: com.prosc.test.Classroom.campus at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:236) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:160) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:173) at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27) at ... |
24. session.get(Xxx.class, id) wouldn't return null forum.hibernate.orgNewbie Joined: Tue Sep 06, 2005 4:12 am Posts: 16 Sorry everybody. Let me explain more detail. I want to practice the difference record retrieving by two methods -- load() & get(). I have a sample code as following: Code: private static void select8(Integer custno) { Session session = ConnectionBean.getCurrentSession(); Customer customer ... |
25. What does org.hibernate.Session.save(String,Obj) do? forum.hibernate.orgso what? What does it happen if you specify an Entity? Hibernate tries to cast the object to that object? Fetches the appropriate mapping? What are the consequencies on inheritance trees? I have problems with example 10.1.5, and I stumbled on that method while searching for a way to make Hibernate populate the tables I want... Michele |
26. Is hibernate session has time out? forum.hibernate.org |
27. hashCode & isEqual with same session different transacti forum.hibernate.orgLaLiLuna wrote: I do not think that this is an issue of hashCode or equal. may be your object is resaved as you have not properly removed it. eg. bidrectional many to one A.getBs().remove(A) B.setA(null) session.remove(B); If this is not hte case you should post your complete code and mappings. Sebastian I mean that the object is not removed from the ... |
28. Max number of opened and concurrential sessions ? forum.hibernate.orgHello to every one. I'm using Hibernate with Tomcat in a non-managed environment. I'd like to know whether there is a limitation or not (apart from memory) in the number of opened sessions. The point is that I would like to know if I must bind each Hibernate session to each Tomcat session, or if I have to make a session ... |
29. SessionException Session is closed. Blob Mysql forum.hibernate.orgNewbie Joined: Fri Jul 22, 2005 8:47 am Posts: 8 Hi, I need some help with hibernate 3.1. i am migrate an application from hibernate 2.x to hibernate 3.1.1. I'm ussing the pattern ThreadLocal to session implementation was used in hibernate 2.x and i haven't problem with this until now. I get this exception when serialize the object to setting blob ... |
30. "null" after session.flush forum.hibernate.org |
31. Connecting to 2 DB in one session at a time ... forum.hibernate.orgI have a requirement of connecting to 2 DB in one session at a time ... Detailed explan : In my application when my application starts hibernate is configured to interact with a DB which is meant for my application.I am using Data source for obtaining a connection from this database. Now in one of my module, I have to connect ... |
32. Session null with hibernate in Webapplication forum.hibernate.orgAuthor Message jonny007 Post subject: Session null with hibernate in Webapplication Posted: Tue Aug 22, 2006 9:27 am Newbie Joined: Tue Aug 22, 2006 8:47 am Posts: 2 Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp [b]Hibernate version:[3.1] Hi all iam new bie to Hibernate. I have an application which runs as standalone and also web application. ... |
33. session.save(String,Object) forum.hibernate.orgHi all, I wanted to know the exact use of Session.save(String, Object) API. I was looking towards it because of following requirement. Any other suggestions are also welcome. Requirement: I have one hibernate object OBJ having fields 1. String id (primary key, auto generated) : hence getter would be public and setter is private. 2. String refId(is unique always for every ... |
34. Hibernate Session Time Out Property forum.hibernate.org |
35. Session.get() returning null forum.hibernate.org |
36. Same session second time right attempt also fails forum.hibernate.orgIn a single session, in any (same/or different) transaction, if my save attempts fails first time (because of constraint violation), second time i will set value properly and i should be able to save'. but second time also my save fails (even though values are properly set) Code: package example; import org.hibernate.FlushMode; import org.hibernate.Session; import org.hibernate.SessionFactory; public class PersonTest { ... |
37. Time for a call to session.save() ? forum.hibernate.orgHi everybody. I have a failry simple question. I have included hibernate in an application where we have to save millions of elements in our database. A first benchmark showed me that a simple casll to the session.save() method on a very simple bean (like the event of the hibernate tutorial) takes like 30 ms on my dev machine. Is that ... |
38. session.merge does not save blob forum.hibernate.org |
39. problem Session createSession(String configFile) confi null forum.hibernate.orgAuthor Message chady Post subject: problem Session createSession(String configFile) confi null Posted: Wed Mar 11, 2009 4:44 pm Regular Joined: Wed Jan 28, 2009 8:31 pm Posts: 54 Hi I have a problem. I use HibernateSynchronizer-3.1.9 The problem is with Session createSession(String configFile) configFile is null my console Quote: at model.dao._BaseRootDAO.closeSession(_BaseRootDAO.java:191) at model.dao._BaseRootDAO.findAll(_BaseRootDAO.java:243) at TransfertAtlantiqueServicePersistance.findAll(TransfertAtlantiqueServicePersistance.java:30) at TransfertDeDonneesAtlantique. |
40. How to check if object is in session conflicts with equals() forum.hibernate.orgHi, Hibernate encourages to write custom equals() and hashCode() methods, not based on the id (see https://www.hibernate.org/109.html ); I can understand why, but it comes in conflict in the following scenario. 1) Suppose my DAO has a saveOrUpdate() method. As is its now, I just delegate to the hibernate's Session.saveOrUpdate(). So far, no problem. 2) suppose now a service that uses ... |