Package cn.net.pap.neo4j.repository

Interface HLMRelationshipRepository

All Superinterfaces:
org.springframework.data.repository.CrudRepository<HLMRelationshipEntity,Long>, org.springframework.data.neo4j.repository.Neo4jRepository<HLMRelationshipEntity,Long>, org.springframework.data.repository.PagingAndSortingRepository<HLMRelationshipEntity,Long>, org.springframework.data.repository.query.QueryByExampleExecutor<HLMRelationshipEntity>, org.springframework.data.repository.Repository<HLMRelationshipEntity,Long>
public interface HLMRelationshipRepository extends org.springframework.data.neo4j.repository.Neo4jRepository<HLMRelationshipEntity,Long>

  • Method Summary

    Modifier and Type
    Method
    Description
    List<HLMNodeWithTypeDTO>
    findByStartNodeName(String startNodeName)
    根据 startNode.name 查询关联节点，并制定节点方向
    List<String>
    getDistinctRelationshipType()
    查询所有关系 去重
    List<List<org.neo4j.driver.internal.value.PathValue>>
    getShortestPathBetweenNodesByName(String startNodeName, String endNodeName)
    节点路径 最短距离

    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

    • findByStartNodeName

      @Query("MATCH (HLM { name: {startNodeName} })-[r]->(node) RETURN DISTINCT node AS node, r.type AS nodeType, \'OUT\' AS direction UNION MATCH (HLM { name: {startNodeName} })<-[r]-(node) RETURN DISTINCT node AS node, r.type AS nodeType, \'IN\' AS direction ") List<HLMNodeWithTypeDTO> findByStartNodeName(String startNodeName)
      根据 startNode.name 查询关联节点，并制定节点方向
      Parameters:
      startNodeName -
      Returns:

    • getShortestPathBetweenNodesByName

      @Query("match p = shortestpath((a:HLM)-[r*0..4]-(b:HLM)) where a.name = {startNodeName} and b.name={endNodeName} return p") List<List<org.neo4j.driver.internal.value.PathValue>> getShortestPathBetweenNodesByName(@Param("startNodeName") String startNodeName, @Param("endNodeName") String endNodeName)
      节点路径 最短距离
      Parameters:
      startNodeName -
      endNodeName -
      Returns:

    • getDistinctRelationshipType

      @Query("MATCH ()-[r]-() RETURN distinct r.type") List<String> getDistinctRelationshipType()
      查询所有关系 去重
      Returns: