Hi,
I have an abstract class "OrganisationNode" containing a "@GraphId id"
field.
I have several concrete classes extending OrganisationNode, for example
"InstitutionNode" or "CommunityNode". None of them have a @GraphId field.
If I put another "@GraphId id" field on InstitutionNode, I get the
following error "Attempt to add id property private java.lang.Long
eu.ueb.acem.domain.beans.rouge.neo4j.OrganisationNode.id but already have
property private java.lang.Long
eu.ueb.acem.domain.beans.rouge.neo4j.InstitutionNode.id registered as id.
Check your mapping configuration!"
However, this seems ok at first, because each of my DAOs (e.g.
InstitutionDAO, CommunityDAO, etc) contain a CrudRepository instance
specific to a given concrete class. It can create nodes and they have the
good labels, e.g. if I call InstitutionRepository.create("my new
institution"), the resulting node will have the labels : "Organisation",
"Institution" and "_Institution". That's exactly what I want.
The problem is that CrudRepository#exists returns true, even if I mix the
concrete classes. For example, if I call InstitutionRepository#exists(id of
a CommunityNode), it returns true! The same thing happens with
CommunityRepository#exists(id of an InstitutionNode).
It seems that the @GraphId concerns the OrganisationNode and that the
"exists" method doesn't care about the type associated with the
CrudRepository. I would find logical the following results :
- InstitutionRepository#exists(id of a InstitutionNode) to return true
- InstitutionRepository#exists(id of a CommunityNode) to return false
Is that a bug? Or is that how it is supposed to work, and should I
overwrite the "exists" method?
Thanks!
Grégoire
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