[JBoss-user] [Persistence,JBoss/CMP, Hibernate, Database] - Re: Can't save data in database
I didn't use a hibernate.cfg.xml or hibernate.properties when running the application as an EAR using jboss, accessing hibernate classes with a stateless session bean. I made a HAR which is a basic archive (just like a jar except .har instead) and put hibernate-service.xml in the META-INF folder. Then put the HAR in an EAR and put the above store() method in an ejb. My hibernate-service.xml looks like this. (i think jboss forum adds unnecessary br tags(?)) java:test org.hibernate.dialect.HSQLDialect java:/hibernate/SessionFactory org.hibernate.cache.HashtableCacheProvider When I was NOT running the application as an EAR (not using ejb) I ran the hibernate documentation tutorial using hibernate.cfg.xml file. Of course I had set up the hypersonic db beforehand. http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd";> org.hsqldb.jdbcDriver jdbc:hsqldb:C:\hsqldb\db4hibernate\test sa org.hibernate.dialect.HSQLDialect true org.hibernate.transaction.JDBCTransactionFactory org.hibernate.cache.HashtableCacheProvider update View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3894683#3894683 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3894683 --- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. Download it for free - -and be entered to win a 42" plasma tv or your very own Sony(tm)PSP. Click here to play: http://sourceforge.net/geronimo.php ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Persistence,JBoss/CMP, Hibernate, Database] - Re: Can't save data in database
Can you post your hibernate.cfg.xml file for reference. Regards. Lokesh. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3894370#3894370 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3894370 --- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] [Persistence,JBoss/CMP, Hibernate, Database] - Re: Can't save data in database
I was having the same problem too, and for a day and a half nearly went out of
my mind trying to figure out why the data wouldn't save! Then I realized it was
simple - I forgot to add session.flush() after saving but before closing the
session. With jboss you use a HAR and put it in an EAR. By putting the
hibernate classes in a HAR along with hibernate-service.xml as I understand you
don't configure hibernate anymore with the hibernate.cfg.xml or
hibernate.properties files. You also don't build the SessionFactory either you
reference it, and don't need to do the transactions yourself in the method but
the container will do them for you -of course don't forget to put in the
ejb-jar.xml that your method has a required container managed transaction :) I
think jboss also sets up the transaction configuration for you too, so you
don't need to configure that for hibernate either.
Here is my method:
public void store(String title, Date theDate) throws EJBException
{
System.out.println("EventFacadeBean.store: entered in method");
Session hsession = null;
try
{
InitialContext ctx = new InitialContext();
SessionFactory factory = (SessionFactory)
ctx.lookup("java:/hibernate/SessionFactory");
hsession = factory.openSession();
Event theEvent = new Event();
theEvent.setTitle(title);
theEvent.setDate(theDate);
hsession.save(theEvent);
} catch(Exception e) {
System.out.println("Exception found. " + e.getMessage());
} finally {
if (hsession!=null){
hsession.flush();
hsession.close();
}
}
System.out.println("EventFacadeBean.store: finished method");
}
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[JBoss-user] [Persistence,JBoss/CMP, Hibernate, Database] - Re: Can't save data in database
Here's a little more I found out:
During a save Hibernate is executing a method in class
AbstractSaveEventListener that is testing whether a variable useIdentityColumn
is true or false. It's false in mine (I don't know why, I do have an indentity
column defined). It looks to me that the call to
source.getActionQueue().execute(insert);
is being skipped. I'm just guessing this in the path it needs to go down to
execute the save. There must be another configuration setting needed to make
useIdentityColumn == true.
if (useIdentityColumn) {
EntityIdentityInsertAction insert = new EntityIdentityInsertAction
(values, entity, persister, source);
source.getActionQueue().execute(insert);
id = insert.getGeneratedId();
persister.setIdentifier( entity, id, source.getEntityMode() );
source.getPersistenceContext().checkUniqueness(id, persister, entity);
//source.getBatcher().executeBatch (); //found another
way to ensure that all batched joined inserts have been executed
}
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[JBoss-user] [Persistence,JBoss/CMP, Hibernate, Database] - Re: Can't save data in database
I've been having the same problem for 2 weeks. Its so bad that my management told me to stop using Hibernate, but I keep playing with it hoping I can figure it out. The problem has to be something stupid, but its equally as stupid that you can execute session.save() and not get an exception, or for that matter any intelligible DEBUG output. Maybe we can help each other on this (I think we better because no one has responded to my HIbernate Forum post in 2 weeks). Below is what I'm seeing in the console when I do a save. Obviously the mapping is good, it is calculating the generated identifer correctly (I already have a 0 & 1 in the table, so 2 is correct.What I'm not seeing is the SQL insert statement (ShowSQL is set to true). Do you see something similar? I am trying to step through the Hibernate code, but it is painful process because it is often hard to tell hat the methods should return if they are working correctly. 14:02:52,828 DEBUG [SessionFactoryObjectFactory] JNDI lookup: hibernate/SessionFactory 14:02:52,828 DEBUG [SessionFactoryObjectFactory] lookup: uid=4028a02e060db29a01060db2a277 14:02:58,468 DEBUG [JDBCContext] successfully registered Synchronization 14:02:58,484 DEBUG [SessionImpl] opened session at timestamp: 11255113782 14:03:00,328 DEBUG [DefaultSaveOrUpdateEventListener] saving transient instance 14:03:00,328 DEBUG [AbstractBatcher] opening JDBC connection 14:03:00,343 DEBUG [IncrementGenerator] fetching initial value: select max(LEDGER_ID) from gl_Ledger 14:03:00,343 DEBUG [SQL] select max(LEDGER_ID) from gl_Ledger 14:03:02,328 DEBUG [IncrementGenerator] first free id: 2 14:03:02,343 DEBUG [AbstractSaveEventListener] generated identifier: 2, using strategy: org.hibernate.id.IncrementGenerator 14:03:02,359 DEBUG [AbstractSaveEventListener] saving [com.blackdog.gl.domain.Ledger#2] 14:03:10,281 DEBUG [SessionImpl] closing session 14:03:10,281 DEBUG [AbstractBatcher] closing JDBC connection (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0) 14:03:38,562 DEBUG [CacheSynchronization] transaction before completion callback 14:03:38,562 DEBUG [CacheSynchronization] automatically flushing session 14:03:38,562 DEBUG [SessionImpl] automatically flushing session 14:03:38,562 DEBUG [JDBCContext] before transaction completion 14:03:38,562 DEBUG [SessionImpl] before transaction completion 14:03:38,609 DEBUG [CacheSynchronization] transaction after completion callback, status: 3 14:03:38,609 DEBUG [JDBCContext] after transaction completion 14:03:38,609 DEBUG [SessionImpl] after transaction completion View the original post : http://locahost:8080/index.html?module=bb&op=viewtopic&p=3892491#3892491 Reply to the post : http://locahost:8080/index.html?module=bb&op=posting&mode=reply&p=3892491 --- SF.Net email is Sponsored by the Better Software Conference & EXPO September 19-22, 2005 * San Francisco, CA * Development Lifecycle Practices Agile & Plan-Driven Development * Managing Projects & Teams * Testing & QA Security * Process Improvement & Measurement * http://www.sqe.com/bsce5sf ___ JBoss-user mailing list JBoss-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jboss-user
