mapping failure for nested class

bobrobertsonjr · **Joined:** Fri Jan 27, 2006 8:04 am **Posts:** 8

Problem:
Can't set a property on a static inner class.
If I add a getter/setter pair, and set access=property, then the setter is not found

Hibernate version:
3.1.1

Mapping documents:

Code:

<!-- using an existing domain model where many classes are marked
  as final, and setters do not exist always -->
hibernate.cglib.use_reflection_optimizer=false
hibernate.max_fetch_depth=1

<hibernate-mapping default-access="field" default-lazy="false">
   <class name="de.acme.Outer" table="outerTable">
      <id name="id" column="id">
          <generator class="sequence">
                <param name="sequence">SEQ_acme</param>
           </generator>
      </id>
      <many-to-one name="nested" class="de.acme.Outer$Inner" column="innerTable" fetch="join"/>
   </class>
       
   <class name="de.acme.Outer$Inner" table="innerTable">
      <id name="id" column="id"/>
       <property name="customerScore" column="score"/>
   </class>
</hibernate>

java classes

Code:

public final class Outer extends Base
{
  private int id;
  private Outer outer;

  public static class Outer extends Base
  {
    private int id;
    // DB column is NUMBER
    private int customerScore;
  }
}

Full stack trace of any exception that occurs:

Code:

13:15:28.519 INFO [DefaultLoadEventListener]- <Error performing load command> 
org.hibernate.PropertyAccessException: could not set a field value by reflection setter of de.acme.OuterClass$InnerClass.customerScore   at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:81)
   at org.hibernate.tuple.AbstractTuplizer.setPropertyValues(AbstractTuplizer.java:207)
   at org.hibernate.tuple.PojoTuplizer.setPropertyValues(PojoTuplizer.java:176)
   at org.hibernate.persister.entity.BasicEntityPersister.setPropertyValues(BasicEntityPersister.java:2919)
   at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:113)
   at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:530)
   at org.hibernate.loader.Loader.doQuery(Loader.java:436)
   at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
   at org.hibernate.loader.Loader.loadEntity(Loader.java:1345)
   at org.hibernate.loader.entity.EntityLoader.load(EntityLoader.java:116)
   at org.hibernate.loader.entity.EntityLoader.load(EntityLoader.java:101)
   at org.hibernate.persister.entity.BasicEntityPersister.load(BasicEntityPersister.java:2471)
   at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:351)
   at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:332)
   at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:113)
   at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:151)
   at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:79)
   at org.hibernate.impl.SessionImpl.get(SessionImpl.java:621)
   at org.hibernate.impl.SessionImpl.get(SessionImpl.java:614)
   at 
Caused by: java.lang.IllegalArgumentException
   at sun.reflect.UnsafeIntegerFieldAccessorImpl.set(Unknown Source)
   at java.lang.reflect.Field.set(Unknown Source)
   at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:78)
   ... 36 more

Name and version of the database you are using:
Oracel9i

The generated SQL (show_sql=true):

Debug level Hibernate log excerpt:

LaLiLuna · **Posted:** Fri Jan 27, 2006 8:56 am

I cannot find the Outer$Inner class in your source code.

You must provide getters and setters for all fields.

Probably not related to your problem but you are missing empty constructors for your classes, which is needed for reflextion (as far I know).

Sebastian

bobrobertsonjr · **Joined:** Fri Jan 27, 2006 8:04 am **Posts:** 8

Surprise, surprise, the problem was not where I expected.

Looks like there are null values in the DB.

Apologies.