二级关系上的GraphRepository查找方法

问题描述

我正在使用spring-data-neo4j-4.2.0.RC1和neo4j-ogm-core-2.1.0.jar
具有以下域对象
用户->角色->特权

I am using spring-data-neo4j-4.2.0.RC1 and neo4j-ogm-core-2.1.0.jar
Have the following domain objects
User -> Role -> Priviledge

public class User extends BaseEntity{
        private String firstName;
        private String lastName;

        @Relationship(type="ROLE")
        private Role role;
}
@NodeEntity
public class Role extends BaseEntity{

    private String name;

    @Relationship(type="PRIVILEDGE")
    private Priviledge priviledge;
}
@NodeEntity
public class Priviledge extends BaseEntity {

    private String name;
}

public interface UserRepository extends GraphRepository<User> {

    User findByRolePriviledgeName(String name);
}

我想找到所有具有特定特权名称的用户.上面的查询适用于JPA和spring存储库，但不使用GraphRepository返回预期结果.
不确定这是错误/不受支持还是我做错了事

I want to find all users that have a specific priviledge name. The above query worked with JPA and spring repository, but does not return expected result with GraphRepository.
Not sure if this is a bug/not supported or I am doing something wrong

推荐答案

在SDN派生的查询中不支持此功能，它仅支持一个嵌套级别，而您则使用两个嵌套级别(角色，然后是特权).您可以为此编写一个自定义@Query.

This is not supported in SDN- derived queries support only one level of nesting but yours uses two (Role, then Privilege).You can write a custom @Query for this.

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