[jboss-user] [EJB 3.0] - One to many relation issues

[jeremygibson]

Hi,

I'm trying to have a person entity who has a collection of person entities representing his children. I have it marked as follows:


  | 	private Collection<Person> children;
  |                 ...
  |          @OneToMany
  | 	public Collection<Person> getChildren() {
  | 		return children;
  | 	}
  | 

But when I deploy this it gives me the following error.

org.hibernate.MappingException: Could not determine type for: java.util.Collection, for columns: [org.hibernate.mapping.Column(children)]

I haven't found other examples of entity having instances of themselves but did see a post where someone was having a similar issue relating to having a collection of enitites from a "close relative" on the inheritance tree, so I am not sure whether this is a common issue. Any help is appreciated

Jeremy

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