If you don't get an answer here you may want to ask on the JAXB list:
http://www.nabble.com/java.net---JAXB-f13496.html .
Glen
2008-07-03 Piotr Skawinski wrote:
> I have one entity with 2 bi-directional one-to-many relations and the
> relations are the list with the objects of the same type as the parent object
> like:
>
> public class Institution implements Persistent {
>
> @OneToMany(mappedBy = "uucInstitution", fetch=FetchType.EAGER)
> @XmlElement(name="uucInstitution")
> private List<Institution> uucInstitutions = new ArrayList<Institution>();
>
> @ManyToOne
> @XmlTransient
> private Institution uucInstitution;
>
> @OneToMany(mappedBy="attachedUUCInstitution", fetch=FetchType.EAGER)
> @XmlElement(name="attachedUUCInstitution")
> private List<Institution> attachedUUCInstitutions = new
> ArrayList<Institution>();
>
> @ManyToOne
> @XmlTransient
> private Institution attachedUUCInstitution;
>
> @OneToMany(mappedBy="detachedUUCInstitution", fetch=FetchType.EAGER)
> @XmlElement(name="detachedUUCInstitution")
> private List<Institution> detachedUUCInstitutions;
>
> @ManyToOne
> @XmlTransient
> private Institution detachedUUCInstitution;
>
> }
>
> In this case the method
>
> public void afterUnmarshal(Unmarshaller u, Object parent) {
> this.department = (Department)parent;
>
>
> seems problamatic to be used, because I need to unmarshall parent for both
> relations institution-detachedUUCInstitutions and
> institution-attachedUUCInstitutions.
>
> Piotr
>
>
>
>
> > Date: Thu, 3 Jul 2008 09:58:00 -0400
> > From: [EMAIL PROTECTED]
> > Subject: Re: Cycle error in the object graph caused when returning jpa
> > based objects
> > To: [email protected]
> >
> > https://jaxb.dev.java.net/guide/Mapping_cyclic_references_to_XML.html ?
> >
> > 2008-07-03 Piotr Skawinski wrote:
> > > Hi,
> > >
> > > I'm getting "A cycle is detected in the object graph" error when a
> > > web-service method returns jpa objects with bi-directional relations. The
> > > objects are returned fine by the jpa's entity manager and the problem
> > > occures first when the objects are being translated to some xml value by
> > > the CXF.
> > >
> > > Any suggestion how to solve this problem?
> > >
> > > Regards, Piotr
> > >
> > > _________________________________________________________________
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>
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