Re: error in hibernate persistance service

Aleks:

I'm having some problems with the new hashCode methods, not sure why... I'm not entirely sure I understand the logic of the equals() method and the getHash methods you're using. It looks like I'm getting a nosuch method error now....

java.lang.NoSuchMethodError: org.apache.commons.lang.builder.HashCodeBuilder.appendSuper(I)Lorg/apache/commons/lang/builder/HashCodeBuilder; at org.keel.apps.poll.entity.Choice.hashCode(Choice.java:215) at net.sf.hibernate.engine.Key.hashCode(Key.java:60) at java.util.HashMap.hash(HashMap.java:264) at java.util.HashMap.get(HashMap.java:320) at net.sf.hibernate.impl.SessionImpl.getEntity(SessionImpl.java:673) at net.sf.hibernate.impl.SessionImpl.doSave(SessionImpl.java:834) at net.sf.hibernate.impl.SessionImpl.saveWithGeneratedIdentifier(SessionImpl.java:779) at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:738) at org.keel.services.persist.hibernate.HibernatePersistent.add(HibernatePersistent.java:167) at org.keel.services.persist.base.AbstractPersistentFactory.createRecords(AbstractPersistentFactory.java:587) at org.keel.services.persist.hibernate.HibernatePersistentFactory.cr
 eateTables(HibernatePersistentFactory.java:493) 

But if I use a "direct" equals() and getHash() this isn't happening. I'm not sure if this is the issue that was being seen with Hibernate, or whether it's something local, but it *does* stop the "ids" table getting built for some reason, even if you don't have app-poll enabled.

Mike

On Tue, 06 Jul 2004 00:40:52 +0200
Aleksandar Vidakovic <[email protected]> wrote:

> The hashCode() methods are checked in app-hoj, app-poll, app-register...
> 
> Didn't have the time to do some further checking... tell me if you still
> have problems.
> 
> Cheers,
> 
> Aleks
> 
> On Mon, 2004-07-05 at 17:32, Maurizio Brilli wrote:
> > Aleks,
> > I'm trying to sort things out, as I've realized I was building over 
> > half-built configurations. So I decided that, in order to understand 
> > which errors were caused by incoherent configurations, as I'm not 
> > familiar with keel's build system, at every step, I'd clear it all and 
> > build ex-novo the whole installation (with 'ant nonetinstall').
> > So here's what I'm up to:
> > - default configuration, default persistence, hsqldb RDBMS: ok
> > - default configuration, default persistence, mysql RDBMS: ok
> > - default configuration, default persistence, DB2/400 RDBMS: dialect not 
> > implemented, so I'll have to get back to it later.
> > - default configuration, hibernate persistence, hsqldb RDBMS: when 
> > running model 'createdb', app-poll gives error Could not return a 
> > reference to the Component 
> > (Key='org.keel.services.persist.PersistentFactory/*'). This time the 
> > reason is following:
> > GRAVE: Could not compile the mapping document
> > net.sf.hibernate.MappingException: composite-id class must override 
> > hashCode():
> > org.keel.apps.poll.entity.CatSec
> >         at net.sf.hibernate.cfg.Binder.bindRootClass(Binder.java:311)
> >         at net.sf.hibernate.cfg.Binder.bindRoot(Binder.java:1243)
> >         at net.sf.hibernate.cfg.Configuration.add(Configuration.java:249)
> >         at net.sf.hibernate.cfg.Configuration.addXML(Configuration.java:206)
> >         at 
> > org.keel.services.persist.hibernate.HibernatePersistentFactory.initialize(HibernatePersistentFactory.java:297)
> > So I remarked "app.poll=true" from ant.properties, rebuilt the whole 
> > thing (always with ant nonetinstall after having deleted all that was to 
> > be deleted in order to do a clean start) and model 'createdb' gave me 
> > this other error:
> > Unable to create database tables:null, Persistence exception while 
> > creating default data for 'ids.ids', adding 
> > name:ids.ids,table_name:ids,field_values:table_name=KeelListItem
> > (btw, as far as I can see,  the definition of the ID table IS in 
> > system.xconf)
> > 
> > Now I'd like to be honest with you, but I'd like to have a reply also 
> > from Michael and Shash, whom I know come from the Expresso project: I've 
> > started following the keel project because of a series of problems I'm 
> > having with Expresso. Mind you, I'm not a skilled Java programmer, still 
> > it took me a few hours to get Expresso working on linux, windows, and 
> > even the iseries. Because of the problems I was facing, I went on the 
> > Internet to look for an alternative framework and last week I found 
> > Keel. To be honest, beside the promises of a real open framework, what 
> > attracted me was the presence of at least two former members of the 
> > other project. I thought it meant they faced my same problems and found 
> > a way to solve them. But it looks like the contrary: I'm facing many 
> > more troubles in installing Keel than Expresso, and this is very 
> > frustrating, if you consider I'm only scratching the surface of the 
> > project. It might even be only the hibernate implementation that is 
> > faulty (unless it's me who didn't catch the philosophy...), but what 
> > happens if, after getting further in the implementation I wanted to 
> > change the Authentication or Authorization service? Consider that, just 
> > for a taste of it, I tried to start the default configuration with 
> > cocoon instead of struts, and I didn't even reach the end of the build 
> > process.
> > Now, again, I can't consider myself anymore than a "power user", so I'd 
> > like you guys to be as honest with me as I was with you and tell me if 
> > you think it's a good idea for me to keep triyng to get keel working the 
> > way I need it to.
> > Thank you.
> > Ciao
> > Maurizio
> > _______________________________________________
> > User mailing list
> > [email protected]
> > http://lists.keelframework.org/listinfo.cgi/user-keelframework.org
> > 
> 
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