@OneToAny or else

benoit_m35 · **Joined:** Mon Apr 19, 2004 5:56 am **Posts:** 9

Good morning,
i would like to map a bidirectional @Any association.

Can you tell me if there is a @OneToAny or else in order to manage the bidirection ?

Best Regards.

pb00067 · **Joined:** Tue Jun 16, 2009 3:36 am **Posts:** 990

Use @OneToMany
If you want to have the relation bidirectional, then you additionally must define the mappedBy property.

oakridge · **Joined:** Fri Jul 09, 2010 1:24 pm **Posts:** 11

I have tried mappedBy in a @OneToOne, but that fails with the following message:

Quote:

Referenced property not a (One|Many)ToOne

Can this not be done? I am trying to use the @Any annotation to map a field that is an interface. Here's the full stack:

Code:

Caused by: org.hibernate.AnnotationException: Referenced property not a (One|Many)ToOne: com.xyz.domain.workflow.def.EntityInfo.businessEntity in mappedBy of com.xyz.domain.provider.Provider.entity
   at org.hibernate.cfg.OneToOneSecondPass.doSecondPass(OneToOneSecondPass.java:220)
   at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1221)
   at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:383)
   at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1206)
   at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1459)
   at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:193)
   at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:1086)
   at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:685)
   at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:73)
   at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)
   at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)
   at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)
   ... 24 more

EDIT: I found a ticket in JIRA similar to what I am looking for, but I am not sure that means there isn't a way to achieve this so I am leaving my question open: http://opensource.atlassian.com/project ... e/HHH-4320

brunojcm · **Posted:** Mon Dec 27, 2010 5:57 pm

pb00067 wrote:

Use @OneToMany
If you want to have the relation bidirectional, then you additionally must define the mappedBy property.

I'm using @OneToMany with mapped by, but getting this error:

Exception in thread "main" org.hibernate.MappingException: Foreign key (FKC131381C3D434C46:journals [journalized_type,journalized_id])) must have same number of columns as the referenced primary key (issues [id])
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:113)
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:96)
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1310)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1217)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:329)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1333)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)

My classes are:

@Entity
@Table(name="journals")
public class Journal {

@Id
private Integer id;

@Any(metaColumn = @Column(name = "journalized_type"))
@AnyMetaDef(idType = "integer",
metaType = "string",
metaValues = { @MetaValue(value = "Issue", targetEntity = Issue.class), //@MetaValue(value = "Board", targetEntity = Board.class) }
)
@JoinColumn(name="journalized_id")
private Journalized journalized;
...

@Entity
@Table(name="issues")
public class Issue implements Journalized {

@Id
private Integer id;

@OneToMany(mappedBy="journalized")
//@Where(clause="journalized_type = 'Issues'")
private List<Journal> journals;

...

Any ideas?