[Hibernate-issues] [Hibernate-JIRA] Created: (HHH-1970) Cascade delete on one-to-one fail with "could not get a field value by reflection getter of .."

[Jara C. (JIRA) <no...@at...>]

Cascade delete on one-to-one fail with "could not get a field value by reflection getter of .."
-----------------------------------------------------------------------------------------------

         Key: HHH-1970
         URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-1970
     Project: Hibernate3
        Type: Bug

  Components: metamodel  
    Versions: 3.1.2    
    Reporter: Jara Cesnek


Two classes with relation one-to-to. When deleting exception is thrown. 
After degrade relation on one-to-many all get worked.

---------First ---------------

@IdClass(DOGaa_subjekt_dopln.DOGaa_subjekt_doplnPk.class)
@MappedSuperclass
public abstract class DOGaa_subjekt_dopln extends DOParent implements DOHistorizableMain {
...
/**
 * OneToOne
 */
    @OneToOne(mappedBy="one_aa_subjekt_dopln")
    protected DOaa_subjekt one_aa_subjekt;
    @IgnoreProperty
    public DOaa_subjekt getOneDOaa_subjekt() { return this.one_aa_subjekt; }
    public void setOneDOaa_subjekt(DOaa_subjekt aa_subjekt) { this.one_aa_subjekt = aa_subjekt; }

   @Embeddable
   public static class DOGaa_subjekt_doplnPk implements Serializable {
       protected Integer id_pripad;

       public Integer getId_pripad() {
           return id_pripad;
       }
       public void setId_pripad(Integer id_pripad) {
           this.id_pripad = id_pripad;
       }
       protected Integer id_partner;

       public Integer getId_partner() {
           return id_partner;
       }
       public void setId_partner(Integer id_partner) {
           this.id_partner = id_partner;
       }
...
   }
}

---------Second ---------------

@XmlType(name="DOaa_subjekt",namespace="http://aa.ws.daisy.marbes.cz")
@IdClass(DOGaa_subjekt.DOGaa_subjektPk.class)
@MappedSuperclass
public abstract class DOGaa_subjekt extends DOParent implements DOHistorizableMain {
....

/**
 * OneToOne
 */
    @OneToOne(cascade=CascadeType.ALL,fetch=FetchType.LAZY)
    @JoinColumns({
     @JoinColumn(name="id_partner", referencedColumnName="id_partner", unique=false, nullable=false, insertable=false, updatable=false),
     @JoinColumn(name="id_pripad", referencedColumnName="id_pripad", unique=false, nullable=false, insertable=false, updatable=false)
    })
    protected DOaa_subjekt_dopln one_aa_subjekt_dopln;
    @IgnoreProperty
    public DOaa_subjekt_dopln getOneDOaa_subjekt_dopln() { return this.one_aa_subjekt_dopln; }
    public void setOneDOaa_subjekt_dopln(DOaa_subjekt_dopln aa_subjekt_dopln) { this.one_aa_subjekt_dopln = aa_subjekt_dopln; }

   @Embeddable
   public static class DOGaa_subjektPk implements Serializable {
       protected Integer id_pripad;

       public Integer getId_pripad() {
           return id_pripad;
       }
       public void setId_pripad(Integer id_pripad) {
           this.id_pripad = id_pripad;
       }
       protected Integer id_partner;

       public Integer getId_partner() {
           return id_partner;
       }
       public void setId_partner(Integer id_partner) {
           this.id_partner = id_partner;
       }
...
   }
}

----------------Exception-----------------
2006-08-03 12:04:58,289 WARN  http-8090-Processor2:pubal [BLKernel3] Exception invoking fellowship kernel3.editforms.savedelta
org.springframework.orm.hibernate3.HibernateSystemException: could not get a field value by reflection getter of cz.marbes.daisy.modules.aa.mdo.DOGaa_subjekt_dopln$DOGaa_subjekt_doplnPk.id_pripad; nested exception is org.hibernate.PropertyAccessException: could not get a field value by reflection getter of cz.marbes.daisy.modules.aa.mdo.DOGaa_subjekt_dopln$DOGaa_subjekt_doplnPk.id_pripad
org.hibernate.PropertyAccessException: could not get a field value by reflection getter of cz.marbes.daisy.modules.aa.mdo.DOGaa_subjekt_dopln$DOGaa_subjekt_doplnPk.id_pripad
	at org.hibernate.property.DirectPropertyAccessor$DirectGetter.get(DirectPropertyAccessor.java:35)
	at org.hibernate.tuple.AbstractComponentTuplizer.getPropertyValue(AbstractComponentTuplizer.java:61)
	at org.hibernate.tuple.AbstractComponentTuplizer.getPropertyValues(AbstractComponentTuplizer.java:67)
	at org.hibernate.tuple.PojoComponentTuplizer.getPropertyValues(PojoComponentTuplizer.java:98)
	at org.hibernate.type.ComponentType.getPropertyValues(ComponentType.java:307)
	at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:158)
	at org.hibernate.engine.EntityKey.generateHashCode(EntityKey.java:103)
	at org.hibernate.engine.EntityKey.<init>(EntityKey.java:47)
	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:76)

------------------RESEARCH ---------
In hibernate is wrong assigned Entity with his IdClass.
For DOaa_subjekt_dopln there is key  DOaa_subjekt_doplnPk  
but 
for entity DOaa_subjekt there is key DOaa_subjekt_doplnPk  too!!

Or should I generated just one IdClass for all one-to-one entities ??




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