Path resolution in Repository

[paulux84]

Repository does not map to object result with only one node when cypher return path.

In the following example ServiceEntity (Service) contains a list (ServiceOption) that is correctly hydrated. In the meantime, all Service without relationships (the first match) are not returned as ServiceEntity from Repository while neo4j correctly returns it as result of a direct query to DB.

@Query("match p=(s:Service) where ID(s) IN $iterable return p " +
            "union match p=(:Service)-[:HAS_OPTION]->(option:ServiceOption) " +
            "where ID(option) IN $iterable return p")
    List<ServiceEntity> findAllByServiceOrServiceOptionId(Iterable<Long> iterable);

Thanks for your works,
Paolo

[meistermeier]

Thanks for reporting this.
It seems that an empty path returned by the single node was not correctly respected in SDN.
There will be a 6.2.2-GH-2470-SNAPSHOT available in ~30 minutes containing the fix. Would be great to get your feedback on this.

[paulux84]

Great, I'll try the fix as soon as possible and reply to you with the results.
Thanks again

[paulux84]

Hi again,
the problem seems to persist. This are my new dependencies:

./mvnw dependency:tree | grep neo4j
[INFO] +- org.springframework.boot:spring-boot-starter-data-neo4j:jar:2.6.2:compile
[INFO] +- org.springframework.data:spring-data-neo4j:jar:6.2.2-GH-2470-SNAPSHOT:compile
[INFO] |  +- org.neo4j:neo4j-cypher-dsl:jar:2021.4.2:compile
[INFO] |  +- org.neo4j.driver:neo4j-java-driver:jar:4.3.6:compile

[meistermeier]

Could you provide some data and/or reproducer?
For the pattern above I created two Services of which one is connected to a ServiceOption.
You can see the example here https://github.com/meistermeier/neo4j-issues-examples/tree/master/gh-2470
If you would comment the 6.2.2-GH-2470-SNAPSHOT dependency, the app will fail.

[paulux84]

Your code example is correct and the fix here seems to work. I'll searching for some dependency error in my project.

[paulux84]

Solved, thanks...the fix works. My problem is related to old dependency cache.

[paulux84]

when will this fix be merged in a release branch?

[michael-simons]

https://calendar.spring.io

VMWare plans the releases.

cc @mp911de