Package cn.net.pap.neo4j.repository

Interface HLMRepository

All Superinterfaces:

org.springframework.data.repository.CrudRepository<HLMEntity,String>, org.springframework.data.neo4j.repository.Neo4jRepository<HLMEntity,String>, org.springframework.data.repository.PagingAndSortingRepository<HLMEntity,String>, org.springframework.data.repository.query.QueryByExampleExecutor<HLMEntity>, org.springframework.data.repository.Repository<HLMEntity,String>

public interface HLMRepository
extends org.springframework.data.neo4j.repository.Neo4jRepository<HLMEntity,String>

Method Summary

Modifier and Type	Method	Description
List<HLMEntity>	findByName(String name)	根据 name 查询
HLMEntity	getById(Long id)	根据ID 匹配数据，这里的 ID 是 neo4j里默认会创建的一个Long型自增ID
List<HLMEntity>	getCycle()	查询循环节点
List<HLMEntity>	getLeaf()	查询叶子节点，底级 无出
List<HLMEntity>	getRoot()	查询根节点，顶级 无入

Methods inherited from interface org.springframework.data.repository.CrudRepository

count, delete, deleteAll, deleteAll, deleteAllById, deleteById, existsById, findById, save

Methods inherited from interface org.springframework.data.neo4j.repository.Neo4jRepository

findAll, findAll, findAll, findAll, findAllById, saveAll

Methods inherited from interface org.springframework.data.repository.PagingAndSortingRepository

findAll

Methods inherited from interface org.springframework.data.repository.query.QueryByExampleExecutor

count, exists, findAll, findBy, findOne

Method Details

findByName

List<HLMEntity> findByName(String name)

根据 name 查询

Parameters:

name -

Returns:

getById

@Query("MATCH (n:HLM) WHERE id(n)={id} RETURN n")
HLMEntity getById(Long id)

根据ID 匹配数据，这里的 ID 是 neo4j里默认会创建的一个Long型自增ID

Parameters:

id -

Returns:

getRoot

@Query("MATCH (n) WHERE not ()-->(n) RETURN DISTINCT n")
List<HLMEntity> getRoot()

查询根节点，顶级 无入

Returns:

getLeaf

@Query("MATCH (n) WHERE not (n)-->() RETURN DISTINCT n")
List<HLMEntity> getLeaf()

查询叶子节点，底级 无出

Returns:

getCycle

@Query("MATCH (n)-[*]->(n) RETURN DISTINCT n")
List<HLMEntity> getCycle()

查询循环节点

Returns: