Set<RelationshipEntity> [DATAGRAPH-373]

[spring-projects-issues]

David Gommeren opened DATAGRAPH-373 and commented

If I have:

@RelationshipEntity public class IndexedRelation\ { @EndNode @Fetch private E endNode; ...

and

public class IndexedCollection\ extends LinkedHashSet<IndexedRelation\> { ...

I can't do:

@RelatedToVia (type = "attributes") @Fetch private IndexedCollection\ myClasses = new IndexedCollection<>();

Runtime error: Caused by: org.springframework.data.mapping.model.MappingException: Relationship field with RelationshipEntity class nl.abacus.pim.meta.core.model.blueprint.AttributeDef annotated with @RelatedToVia

I have to add the RelationshipEntity in the generics, e.g.: public class IndexedCollection<IndexedRelation,E> extends LinkedHashSet ...

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Affects: 2.2.1

[spring-projects-issues]

Michael Hunger commented

Does this workaround work for you? I think we don't support extending collection classes as entities which is a dangerous design anyway. Better encapsulate the set in a "Collections" object

[spring-projects-issues]

Michael Hunger commented

Oh and indexed collections are not supported / represented in the graph (aka we don't store any order right now). That's why the set semantics is the maximum you can get. And List support is only there for convenience

[spring-projects-issues]

Michael Hunger commented

See comments