Module spring.data.neo4j
Package org.springframework.data.neo4j.repository.support

Interface ReactiveCypherdslStatementExecutor<T>

Type Parameters:
T - The domain type of the repository
@API(status=STABLE, since="6.1") public interface ReactiveCypherdslStatementExecutor<T>
An interface that can be added to any reactive repository so that the repository exposes several methods taking in a Statement from the Cypher-DSL, that allows for full customization of the queries executed in a programmatic way in contrast to provide custom queries declaratively via @Query annotations.
Since:
6.1
Author:
Michael J. Simons

  • Method Summary

    Modifier and Type
    Method
    Description
    reactor.core.publisher.Flux<T>
    findAll(org.neo4j.cypherdsl.core.Statement statement)
    Find all elements of the domain as defined by the statement.
    <PT> reactor.core.publisher.Flux<PT>
    findAll(org.neo4j.cypherdsl.core.Statement statement, Class<PT> projectionClass)
    Creates a custom projection of the repository type by a Cypher-DSL based statement.
    reactor.core.publisher.Mono<T>
    findOne(org.neo4j.cypherdsl.core.Statement statement)
    Find one element of the domain as defined by the statement.
    <PT> reactor.core.publisher.Mono<PT>
    findOne(org.neo4j.cypherdsl.core.Statement statement, Class<PT> projectionClass)
    Creates a custom projection of the repository type by a Cypher-DSL based statement.

  • Method Details

    • findOne

      reactor.core.publisher.Mono<T> findOne(org.neo4j.cypherdsl.core.Statement statement)
      Find one element of the domain as defined by the statement. The statement must return either no or exactly one mappable record.
      Parameters:
      statement - A full Cypher statement, matching and returning all required nodes, relationships and properties
      Returns:
      An empty Mono or a Mono containing the single element

    • findOne

      <PT> reactor.core.publisher.Mono<PT> findOne(org.neo4j.cypherdsl.core.Statement statement, Class<PT> projectionClass)
      Creates a custom projection of the repository type by a Cypher-DSL based statement. The statement must return either no or exactly one mappable record.
      Type Parameters:
      PT - The type of the projection
      Parameters:
      statement - A full Cypher statement, matching and returning all required nodes, relationships and properties
      projectionClass - The class of the projection type
      Returns:
      An empty Mono or a Mono containing the single, projected element

    • findAll

      reactor.core.publisher.Flux<T> findAll(org.neo4j.cypherdsl.core.Statement statement)
      Find all elements of the domain as defined by the statement.
      Parameters:
      statement - A full Cypher statement, matching and returning all required nodes, relationships and properties
      Returns:
      A publisher full of domain objects

    • findAll

      <PT> reactor.core.publisher.Flux<PT> findAll(org.neo4j.cypherdsl.core.Statement statement, Class<PT> projectionClass)
      Creates a custom projection of the repository type by a Cypher-DSL based statement.
      Type Parameters:
      PT - The type of the projection
      Parameters:
      statement - A full Cypher statement, matching and returning all required nodes, relationships and properties
      projectionClass - The class of the projection type
      Returns:
      A publisher full of projections