ExampleMatcher and chained properties

Drivers & Stacks Spring Data Neo4j & Neo4j-OGM
1

Using Query by Example with Neo4j, are chained/nested properties supported?

eg. "address.city"

Documentation seems to suggest they are but having no luck getting it to work

Using spring-boot-starter-data-neo4j:2.7.7

2

Sorry, properties are primitive values or homogeneous lists of primitive values. Maps are not supported for properties.

3

At the moment, relationship traversal is not supported.
The reason is pretty simple, the use of find-by-example is pretty rare in our user base and nobody asked for it until now ;)

I can see that er did consider this almost 4 years ago (spring-data-neo4j/Predicate.java at a41fbad5ab2976db3b5bc2e2d0018afab6920678 · spring-projects/spring-data-neo4j · GitHub) and I am happy to give it a try.

4

Thanks for the reply. One good use case for ExampleMatcher is form based search where you can search on any of a number of search parameters. Using cypher you end up with a CASE expression for every search param to only match that param if it exists.