CODEWITHSUNDEEP
neo4juuidspring-data-neo4jspring-data-neo4j-4
victordobry
victordobry

Reputation: 3408

Spring Data Neo4j repository's save method returns null in place of UUId property

I use GraphAware Neo4j UUID plugin. If I create entity using this:

Entity createdEntity = repository.save(entity);

then createdEntity.uuid property will always be null; but I see the uuid property is set in the db.

Moreover, if I will use the following to reload the entity:

Entity foundEntity = repository.findOne(id);

the property will be null again.

Seems like the entity is cached by Spring, because if I will restart my Spring application, I will be able to load entity along with uuid using repository.findOne(id).

I need to know uuid right after creation of entity. How can I achieve this?

Upvotes: 1

Views: 372

Answers (1)

Luanne
Luanne

Reputation: 19373

The entity properties are cached in the current session (believe you're using SDN 4.2.x?), so you need to reload on a new session. This is especially true for modifications made in event handlers where changes made in them are not reflected till a separate call is performed.

See http://docs.spring.io/spring-data/neo4j/docs/4.2.x/reference/html/#_design_consideration_session_caching for more info

Upvotes: 3

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