Hibernate version:

hibernate 2

Mapping documents:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="at.univie.auv.redbaron.model.MetaGruppen" table="META_GRUPPEN">
<meta attribute="class-description">
@author ZAL
</meta>

<id name="tid" column="TID">
<generator class="assigned"/>
</id>

<property name="i3vUserId" column="I3V_USER_ID" type="double" not-null="false"/>

<property name="i3vDate" column="I3V_DATE" type="string" not-null="false"/>

<property name="name" column="Name" type="string" not-null="false"/>

<property name="metaDarstellungsTypId" column="META_DARSTELLUNG_TYP_ID" type="double" not-null="false"/>

<many-to-one name="application" column="I3V_FILE_ID" class="at.univie.auv.redbaron.model.I3VFile" insert="false" update="true" cascade="all" />

<set name="metaGruppenSprache">
<key column="RELATION"/>
<one-to-many class="at.univie.auv.redbaron.model.MetaGruppenSprache" />
</set>

</class>

</hibernate-mapping>

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="at.univie.auv.redbaron.model.MetaGruppenSprache" table="META_GRUPPEN_SPRACHE">
<meta attribute="class-description">
@author ZAL
</meta>

<id name="tid" column="TID">
<generator class="assigned"/>
</id>

<property name="text" column="TEXT" length="4000" type="string" not-null="false"/>

<property name="i3vUserId" column="I3V_USER_ID" type="double" not-null="false"/>

<property name="foSpracheId" column="FO_SPRACHE_ID" type="double" not-null="false"/>

<property name="i3vDate" column="I3V_DATE" type="string" not-null="false"/>

<property name="metaTextObjectTypId" column="META_TEXTOBJEKT_TYP_ID" type="double" not-null="false"/>

<property name="relation" column="RELATION" type="double" not-null="false" />

</class>

</hibernate-mapping>



[bStruts Action:[/b]
MetaGruppen meta = (MetaGruppen) gruppe.get(1);
Set list = meta.getMetaGruppenSprache();
System.out.println("Metagruppen list \n" + list);
System.out.println("Metagruppen size \n" + list.size());

Object[] objArray = list.toArray();
MetaGruppenSprache metaSpeech = (MetaGruppenSprache) objArray[1];
System.out.println("MetaSpeech " + metaSpeech);

/* MetaGruppenSprache metaSpeech = (MetaGruppenSprache) list.get(1);

System.out.println("MetaSpeech " + metaSpeech);*/

metaSpeech.setText("OH BOY OH BOY OH BOY");
objArray[1] = metaSpeech;
System.out.println("Setting Metaspeech to Array \n " + metaSpeech);

//list.add(objArray);

System.out.println("Setting array to set");
meta.setMetaGruppenSprache(list);

System.out.println("Setting metagruppensprache to metagruppe");

/* System.out.println("Saving Gruppe .... ");
meta.setTid(new Double(666.55));
groups.save(meta);

System.out.println("Done Saving!!!!");*/


return mapping.findForward("groups");


Full stack trace of any exception that occurs:

rg.springframework.orm.hibernate.HibernateSystemException: this id generator generates long, integer, short; nested exception is net.sf.hibernate.id.IdentifierGenerationException: this id generator generates long, integer, short
net.sf.hibernate.id.IdentifierGenerationException: this id generator generates long, integer, short
at net.sf.hibernate.id.IdentifierGeneratorFactory.get(IdentifierGeneratorFactory.java:38)
at net.sf.hibernate.id.SequenceGenerator.generate(SequenceGenerator.java:73)
at net.sf.hibernate.impl.SessionImpl.saveWithGeneratedIdentifier(SessionImpl.java:765)
at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:738)
at net.sf.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:1388)
at net.sf.hibernate.engine.Cascades$4.cascade(Cascades.java:114)
at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:436)
at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:503)
at net.sf.hibernate.engine.Cascades.cascade(Cascades.java:482)
at net.sf.hibernate.impl.SessionImpl.doUpdate(SessionImpl.java:1475)
at net.sf.hibernate.impl.SessionImpl.update(SessionImpl.java:1355)
at org.springframework.orm.hibernate.HibernateTemplate$15.doInHibernate(HibernateTemplate.java:339)
at org.springframework.orm.hibernate.HibernateTemplate.execute(HibernateTemplate.java:176)
at org.springframework.orm.hibernate.HibernateTemplate.update(HibernateTemplate.java:336)
at at.univie.auv.redbaron.dao.hibernate.MetaGruppenDAOHibernate.save(MetaGruppenDAOHibernate.java:51)
at at.univie.auv.redbaron.services.impl.MetaGruppenServicesImpl.save(MetaGruppenServicesImpl.java:44)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingReflection(AopProxyUtils.java:60)

Name and version of the database you are using:

oracle 8i

Debug level Hibernate log excerpt:



hello everybody

currently i'm testing around how to get hibernate to do what i want ...
it isn't easy and the above things are showing may problem -
i've got a double value id and when i try to save my object the error
"exception is net.sf.hibernate.id.IdentifierGenerationException: this id generator generates long, integer, short
net.sf.hibernate.id.IdentifierGenerationException: this id generator generates long, integer, short" appears ...
i don't know if i'm mapping may objects right or wrong because i'm rather new to hibernate but i just want the following thing (just for test cases):

loading an object list - getting the first object - change the object and write the update to the database.
well seems to be easy ...

i'm loading meta_daten which has a one-to-many relation to meta_date_sprache - in meta_date_sprache there is text which i want to change - after the change i want to persist the change by saving the mate_daten object - hope this is not completly nonsense what i'm doing here ...

furthermore we are using spring an struts to make it more complicated ;-)

thanx in advance

greetinx