Java Hibernate mapping

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cyberexe

cyberexe

Gebruiker
Lid geworden
13 feb 2006
Berichten
144
hallo allemaal,

ik ben op dit moment bezig met het maken van een java applicatie met hibernate.
ik probeer een enum type te mappen vanuit een database connectie die een string ophaalt.
de string bevat de waarde van de enum.

dit is de enum class:
Code: 
public enum PersonalType implements Serializable {

    Pilot,
    Stewardess

}

dit is de class Staff die de enum gebruikt:
Code: 
public class Staff implements Serializable {

     private int number;
     private PersonalType type;
     private String name;

... (getters en setters)...
}

dit is mijn mapping file voor de class Staff:
Code: 
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
  <class name="Model.Staff" table="staff">
      <id name="number">
          <column name="staffnumber" />
          <generator class="native" />
      </id>
      <property name="type" type="Model.PersonalType" not-null="true" />
      <property name="name">
          <column name="name" />
      </property>
  </class>
</hibernate-mapping>

ik krijg op dit moment de volgende error bij het starten van de applicatie:

Code: 
Hibernate: select staff0_.staffnumber as staffnum1_4_, staff0_.type as type4_, staff0_.name as name4_ from staff staff0_
Jun 11, 2011 3:42:15 AM org.hibernate.type.NullableType nullSafeGet
INFO: could not read column value from result set: type4_; could not deserialize
Jun 11, 2011 3:42:15 AM org.jdesktop.application.Application$1 run
SEVERE: Application class flyaway.FlyAWayApp failed to launch
org.hibernate.type.SerializationException: could not deserialize
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:217)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:240)
        at org.hibernate.type.SerializableType.fromBytes(SerializableType.java:82)
        at org.hibernate.type.SerializableType.get(SerializableType.java:39)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:163)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:154)
        at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81)
        at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2096)
        at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1380)
        at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1308)
        at org.hibernate.loader.Loader.getRow(Loader.java:1206)
        at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:580)
        at org.hibernate.loader.Loader.doQuery(Loader.java:701)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.doList(Loader.java:2220)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
        at org.hibernate.loader.Loader.list(Loader.java:2099)
        at org.hibernate.hql.classic.QueryTranslatorImpl.list(QueryTranslatorImpl.java:912)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at Database.DatabaseConnectie.getStaff(DatabaseConnectie.java:108)
        at Controller.Controller.DBSetup(Controller.java:43)
        at Controller.Controller.Initialize(Controller.java:53)
        at flyaway.FlyAWayApp.startup(FlyAWayApp.java:48)
        at org.jdesktop.application.Application$1.run(Application.java:171)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.io.StreamCorruptedException: invalid stream header: 50696C6F
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
        at org.hibernate.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:252)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:209)
        ... 33 more
Exception in thread "AWT-EventQueue-0" java.lang.Error: Application class flyaway.FlyAWayApp failed to launch
        at org.jdesktop.application.Application$1.run(Application.java:177)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: org.hibernate.type.SerializationException: could not deserialize
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:217)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:240)
        at org.hibernate.type.SerializableType.fromBytes(SerializableType.java:82)
        at org.hibernate.type.SerializableType.get(SerializableType.java:39)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:163)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:154)
        at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81)
        at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2096)
        at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1380)
        at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1308)
        at org.hibernate.loader.Loader.getRow(Loader.java:1206)
        at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:580)
        at org.hibernate.loader.Loader.doQuery(Loader.java:701)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
        at org.hibernate.loader.Loader.doList(Loader.java:2220)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
        at org.hibernate.loader.Loader.list(Loader.java:2099)
        at org.hibernate.hql.classic.QueryTranslatorImpl.list(QueryTranslatorImpl.java:912)
        at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
        at Database.DatabaseConnectie.getStaff(DatabaseConnectie.java:108)
        at Controller.Controller.DBSetup(Controller.java:43)
        at Controller.Controller.Initialize(Controller.java:53)
        at flyaway.FlyAWayApp.startup(FlyAWayApp.java:48)
        at org.jdesktop.application.Application$1.run(Application.java:171)
        ... 8 more
Caused by: java.io.StreamCorruptedException: invalid stream header: 50696C6F
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:783)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
        at org.hibernate.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:252)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:209)
        ... 33 more


weet iemand of ik zo mijn enum goed gemapped heb?
en hoe ik deze foutmelding kan oplossen??

alvast bedankt!

P.S.: als er meer info nodig is laat het me dan even weten.
 
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