Hibernate löscht Sammlungselemente beim Transaktions-Commit

Question

Ich kann nicht herausfinden, warum Hibernate versucht, Sammlungselemente nach Transaktion Commit zu löschen. Und ich habe es sogar nicht darum gebeten.

Irgendwelche Ideen?

Technische Details finden Sie weiter unten.

Hibernate Dialekt:

org.hibernate.dialect.SQLServerDialect 

Entity Klasse:

@Entity 
    @Table(name = "View_m_activity", schema = "model") 
    public class SourceActivity { 
     private Set<SourceActivityAttrOut> outputAttributes; 

     private Long ID; 

     @Id 
     public Long getID() { 
      return ID; 
     } 

     public void setID(Long ID) { 
      this.ID = ID; 
     } 

     @ElementCollection(fetch = FetchType.EAGER) 
     @CollectionTable(name = "View_m_activity_attr_out", schema = "model", joinColumns = @JoinColumn(name = "activity_id")) 
     public Set<SourceActivityAttrOut> getOutputAttributes() { 
      return outputAttributes; 
     } 

     public void setOutputAttributes(Set<SourceActivityAttrOut> outputAttributes) { 
      this.outputAttributes = outputAttributes; 
     } 
    } 

Sammlung Element Entitätsklasse:

@Embeddable 
    public class SourceActivityAttrOut { 
     private String code; 

     public String getCode() { 
      return code; 
     } 

     public void setCode(String code) { 
      this.code = code; 
     } 
    } 

Execution Code:

@Transactional 
    public void readSource(SourcePool sourcePool) { 
     sessionFactory.getCurrentSession().createQuery("from SourceActivity", SourceActivity.class).list(); 
    } 

Log Info:

Hibernate: 
    select 
     sourceacti0_.ID as ID1_0_ 
    from 
     model.View_m_activity sourceacti0_ 

Hibernate: 
    select 
     outputattr0_.activity_id as activity1_1_0_, 
     outputattr0_.code as code2_1_0_ 
    from 
     model.View_m_activity_attr_out outputattr0_ 
    where 
     outputattr0_.activity_id=? 

Hibernate: 
    select 
     outputattr0_.activity_id as activity1_1_0_, 
     outputattr0_.code as code2_1_0_ 
    from 
     model.View_m_activity_attr_out outputattr0_ 
    where 
     outputattr0_.activity_id=? 

Hibernate: 
    select 
     outputattr0_.activity_id as activity1_1_0_, 
     outputattr0_.code as code2_1_0_ 
    from 
     model.View_m_activity_attr_out outputattr0_ 
    where 
     outputattr0_.activity_id=? 

Hibernate: 
    select 
     outputattr0_.activity_id as activity1_1_0_, 
     outputattr0_.code as code2_1_0_ 
    from 
     model.View_m_activity_attr_out outputattr0_ 
    where 
     outputattr0_.activity_id=? 

Hibernate: 
    delete 
    from 
     model.View_m_activity_attr_out 
    where 
     activity_id=? 

Answer 1

Ursache des Problems war here

Kurz beschrieben wird, das Problem zu lösen ich hashcode außer Kraft setzen musste und gleich von SourceActivityAttrOut.