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v5.0
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    v5.0

      Types Mapping Ultipa and Go

      Mapping Methods

      The Get() or Alias() method of the Response class returns a DataItem, which embeds the query result. You should use the As<Type>() method of DataItem to cast the result to the appropriate driver type.

      myQuery, _ := conn.Uql("find().nodes() as n return n{*} limit 5", requestConfig)
      nodeList, schemaList, _ := myQuery.Alias("n").AsNodes()
      printers.PrintNodes(nodeList, schemaList)
      

      The result n coming from the database contains five nodes, each of the NODE type. The AsNodes() method converts them as a list of Node objects.

      Type mapping methods available on DataItem:

      UQL Type UQL Alias Method Driver Type
      Description
      NODE Any AsNodes() []Node Maps NODE-type DataItem to a list of Node objects.
      NODE Any AsFirstNode() Node Maps the first node in a NODE-type DataItem to a Node object.
      EDGE Any AsEdges() []Edge Maps EDGE-type DataItem to a list of Edge objects.
      EDGE Any AsFirstEdge() Edge Maps the first edge in an EDGE-type DataItem to an Edge object.
      PATH Any AsPaths() Path[] Maps PATH-type DataItem to a list of Path objects.
      GRAPH Any AsGraph() Graph Maps GRAPH-type DataItem to a Graph object.
      TABLE _graph AsGraphSets() []GraphSet Maps DataItem with the alias _graph to a list of GraphSet objects.
      TABLE _nodeSchema, _edgeSchema AsSchemas() []Schema Maps DataItem with the alias _nodeSchema or _edgeSchema to a list of Schema objects.
      TABLE _nodeProperty, _edgeProperty AsProperties() []Property Maps DataItem with the alias _nodeProperty or _edgeProperty to a list of Property objects.
      TABLE _algoList AsAlgos() []Algo Maps DataItem with the alias _algoList to a list of Algo objects.
      TABLE _extaList AsExtas() []Exta Maps DataItem with the alias _extaList to a list of Exta objects.
      TABLE _nodeIndex, _edgeIndex AsIndexes() []Index Maps DataItem with the alias _nodeIndex or _edgeIndex to a list of Index objects.
      TABLE _nodeFulltext, _edgeFulltext AsFullTexts() []Index Maps DataItem with the alias _nodeFulltext or _edgeFulltext to a list of Index objects.
      TABLE _privilege AsPriviliege() []Priviliege Maps DataItem with the alias _privilege to a Priviliege object.
      TABLE _policy AsPolicies() []Policy Maps DataItem with the alias _policy to a list of Policy objects.
      TABLE _user AsUsers() []User Maps DataItem with the alias _user to a list of User objects.
      TABLE _statistic AsStats() Stat Maps DataItem with the alias _statistic to a Stat object.
      TABLE _top AsTops() []Top Maps DataItem with the alias _top to a list of Process objects.
      TABLE _task AsTasks() []Task Maps DataItem with the alias _task to a list of Task objects.
      TABLE Any AsTable() Table Maps TABLE-type DataItem to a Table object.
      ATTR Any AsAttr() Attr Maps ATTR-type DataItem to an Attr object.

      Driver Types

      Objects of all driver types support getter methods to retrieve the value of a field and setter methods to set the value of a field, even if they are not explicitly listed below.

      Node

      A Node object has the following fields:

      Field Type
      Description
      Name string Alias name
      ID string Node ID
      UUID uint64 Node UUID
      Schema string Node Schema
      Values object Node custom properties

      Methods on a Node object:

      Method
      Return
      Description
      get("<propertyName>") Object Get value of the given custom property of the node.
      set("<propertyName>", <propertyValue> Set value for the given custom property of the node; or add a key-value pair to the Values of the node if the given <propertyName> does not exist.

      myQuery, _ := conn.Uql("find().nodes() as n return n{*} limit 5", requestConfig)
      nodeList, _, _ := myQuery.Alias("n").AsNodes()
      
      println("ID of the 1st node:", nodeList[0].GetID())
      println("Name of the 1st node:", nodeList[0].GetSchema())
      

      ID of the 1st node: ULTIPA8000000000000001
      Name of the 1st node: account
      

      Edge

      An Edge object has the following fields:

      Field Type
      Description
      Name string Alias name
      From string Start node ID of the edge
      To string End node ID of the edge
      FromUUID uint64 Start node UUID of the edge
      ToUUID uint64 End node UUID of the edge
      UUID uint64 Edge UUID
      Schema string Edge Schema
      values object Edge custom properties

      Methods on an Edge object:

      Method
      Return
      Description
      get("<propertyName>") Object Get value of the given custom property of the edge.
      set("<propertyName>", <propertyValue> Set value for the given custom property of the edge; or add a key-value pair to the values of the edge if the given <propertyName> does not exist.

      myQuery, _ := conn.Uql("find().edges() as e return e{*} limit 5", requestConfig)
      edgeList, _ := myQuery.Alias("e").AsFirstEdge()
      
      println("Values of the 1st edge:", utils.JSONString(edgeList.GetValues()))
      

      Values of the 1st edge: {"Data":{"datetime":{"Datetime":1847052190913396736,"Year":2019,"Month":1,"Day":6,"Hour":2,"Minute":57,"Second":57,"Macrosec":0,"Time":"2019-01-06T02:57:57Z"},"targetPost":703,"timestamp":{"Datetime":1847052190913396736,"Year":2019,"Month":1,"Day":6,"Hour":2,"Minute":57,"Second":57,"Macrosec":0,"Time":"2019-01-06T02:57:57+08:00"}}}
      

      Path

      A Path object has the following fields:

      Field
      Type
      Description
      Name string Alias name
      Nodes []Node Node list of the path
      Edges []Edge Edge list of the path
      NodeSchemas object Infomation of node schema
      EdgeSchemas object Infomation of edge schema

      myQuery, _ := conn.Uql("n().e()[:2].n() as paths return paths{*} limit 5", requestConfig)
      pathList, _ := myQuery.Alias("paths").AsPaths()
      
      println("Length of the 1st path:", pathList[0].GetLength())
      println("Edge list of the 1st path:", "\n", utils.JSONString(pathList[0].GetEdges()))
      println("Information of the 2nd node in the 1st path:", "\n", utils.JSONString(pathList[0].GetNodes()[1]))
      

      Length of the 1st path: 2
      Edge list of the 1st path: 
       [{"Name":"paths","From":"u_10032","To":"u_105","FromUUID":27,"ToUUID":1,"UUID":2784,"Schema":"follow","Values":{"Data":{}}},{"Name":"paths","From":"u_10071","To":"u_10032","FromUUID":33,"ToUUID":27,"UUID":2876,"Schema":"follow","Values":{"Data":{}}}]
      Information of the 2nd node in the 1st path: 
       {"Name":"paths","ID":"u_10032","UUID":27,"Schema":"account","Values":{"Data":{"birthYear":1988,"fRate":null,"gender":"male","industry":"Transportation","name":"floatingnote","new":null,"new1":null,"new2":null,"records":null,"tags":null}}}
      

      Graph

      A Graph object has the following fields:

      Field
      Type
      Description
      Name string Alias name
      Nodes []Node Node list of the path
      Edges []Edge Edge list of the path
      NodeSchemas object Map of all node schemas of the path
      EdgeSchemas object Map of all edge schemas of the path

      myQuery, _ := conn.Uql("n(as n1).re(as e).n(as n2).limit(3) with toGraph(collect(n1), collect(n2), collect(e)) as graph return graph", requestConfig)
      resp, _ := myQuery.Alias("graph").AsGraph()
      
      println("Node IDs:")
      for _, item := range resp.Nodes {
        println(item.ID)
      }
      println("Edge UUIDs:")
      for _, item := range resp.Edges {
        println(item.UUID)
      }
      

      Node IDs:
      ad304833
      u604131
      ad534784
      ad6880
      Edge UUIDs:
      363347
      774098
      527786
      3
      

      GraphSet

      A GraphSet object has the following fields:

      Field
      Type
      Description
      ID string Graphset ID
      Name string Graphset name
      Description string Graphset description
      TotalNodes string Total number of nodes in the graphset
      TotalEdges string Total number of edges in the graphset
      Status string Graphset status (MOUNTED, MOUNTING, or UNMOUNTED)

      myQuery, _ := conn.Uql("show().graph()", nil)
      resp, _ := myQuery.Alias("_graph").AsGraphSets()
      
      for _, item := range resp {
        if item.Status == "UNMOUNTED" {
          println(item.Name)
        }
      }
      

      DFS_EG
      cyber
      cyber2
      

      Schema

      A Schema object has the following fields:

      Field
      Type
      Description
      Name string Schema name
      Properties []Property Property list of the schema
      Desc string Schema description
      Type string Type of the schema (node or edge)
      DBType DBType Type of the schema (node or edge)
      Total int Total number of nodes/edges of the schema

      myQuery, _ := conn.Uql("show().node_schema()", requestConfig)
      resp, _ := myQuery.Alias("_nodeSchema").AsSchemas()
      
      for _, item := range resp {
        println(item.Name, "has", item.Total, "nodes")
      }
      

      default has 0 nodes
      user has 1092511 nodes
      ad has 846811 nodes
      

      Property

      A Property object has the following fields:

      Field
      Type
      Description
      Name string Property name
      Desc string Property description
      Lte bool Property LTE status
      Schema string Associated schema of the property
      Type PropertyType Property data type
      SubTypes []PropertyType List of property data type
      Extra string Extra information of properties

      myQuery, _ := conn.Uql("show().node_property(@user)", requestConfig)
      resp, _ := myQuery.Alias("_nodeProperty").AsProperties()
      
      for _, item := range resp {
        if item.Lte {
          println("LTE-ed property name:", item.Name)
        }
      }
      

      LTE-ed property name: occupation
      

      Algo

      An Algo object has the following fields:

      Field
      Type
      Description
      Name string Algorithm name
      Desc string Algorithm description
      Version string Algorithm version
      Params object Parameters of the algorithm

      myQuery, _ := conn.Uql("show().algo()", requestConfig)
      resp, _ := myQuery.Alias("_algoList").AsAlgos()
      
      println(utils.JSONString(resp[0]))
      

      {"Name":"bipartite","Desc":"bipartite check","Version":"1.0.1","Params":{}}
      

      Exta

      An exta is a custom algorithm developed by users.

      An Exta object has the following fields:

      Field
      Type
      Description
      Name string Exta name
      Author string Exta author
      Version string Exta version
      Detail string Content of the YML configuration file of the Exta

      myQuery, _ := conn.Uql("show().exta()")
      resp, _ := myQuery.Alias("_extaList").AsExtas()
      
      println("Exta name:", utils.JSONString(resp[0].Name))
      

      Exta name: "page_rank"
      

      Index

      An Index object has the following fields:

      Field
      Type
      Description
      Name string Index name
      Properties string Property name of the index
      Schema string Schema name of the index
      Status string Index status (done or creating)
      Size string Index size in bytes
      Type string Index type (DBNODE or DBEDGE)

      myQuery, _ := conn.Uql("show().index()", requestConfig)
      resp, _ := myQuery.Alias("_nodeIndex").AsIndexes()
      
      for i := 0; i < len(resp); i++ {
        println("Schema name:", resp[i].Schema)
        println("Properties:", resp[i].Properties)
        println("Size:", resp[i].Size)
      }
      

      Schema name: user
      Properties: shopping_level
      Size: 4608287
      Schema name: ad
      Properties: price
      Size: 7828760
      

      Full-text

      A FullText object has the following fields:

      Field
      Type
      Description
      Name string Index name
      Properties string Property name of the index
      Schema string Schema name of the index
      Status string Index status (done or creating)
      Size string Index size in bytes
      Type string Index type (DBNODE or DBEDGE)

      myQuery, _ := conn.Uql("show().fulltext()", requestConfig)
      resp, _ := myQuery.Alias("_edgeFulltext").AsFullTexts()
      
      for i := 0; i < len(resp); i++ {
        println("Fulltext name:", resp[i].Name)
        println("Schema name:", resp[i].Schema)
        println("Properties:", resp[i].Properties)
      }
      

      Fulltext name: nameFull
      Schema name: review
      Properties: content
      

      Privilege

      A Privilege object has the following fields:

      Field
      Type
      Description
      GraphPrivileges []string Graph privileges
      SystemPrivileges []string System privileges

      myQuery, _ := conn.Uql("show().privilege()", requestConfig)
      resp, _ := myQuery.Alias("_privilege").AsPrivilege()
      
      println(utils.JSONString(resp[0].SystemPrivileges))
      

      ["TRUNCATE","COMPACT","CREATE_GRAPH","SHOW_GRAPH","DROP_GRAPH","ALTER_GRAPH","MOUNT_GRAPH","UNMOUNT_GRAPH","TOP","KILL","STAT","SHOW_POLICY","CREATE_POLICY","DROP_POLICY","ALTER_POLICY","SHOW_USER","CREATE_USER","DROP_USER","ALTER_USER","GRANT","REVOKE","SHOW_PRIVILEGE"]
      

      Policy

      A Policy object has the following fields:

      Field
      Type
      Description
      Name string Policy name
      GraphPrivileges GraphPrivileges Graph privileges and the corresponding graphsets included in the policy
      SystemPrivileges []string System privileges included in the policy
      PropertyPrivileges PropertyPrivileges Property privileges included in the policy
      Policies []string Policies included in the policy

      myQuery, _ := conn.Uql("show().policy()", requestConfig)
      resp, _ := myQuery.Alias("_policy").AsPolicies()
      
      for i := 0; i < len(resp); i++ {
        println(resp[i].Name)
      }
      

      operator
      manager
      

      User

      A User object has the following fields:

      Field
      Type
      Description
      Username string Username
      Password string Password
      Create string When the user was created
      GraphPrivileges GraphPrivileges Graph privileges and the corresponding graphsets granted to the user
      SystemPrivileges []string System privileges granted to the user
      Policies []string Policies granted to the user
      PropertyPrivileges PropertyPrivileges Property privileges granted to the user

      myQuery, _ := conn.Uql("show().user('Tester')", requestConfig)
      resp, _ := myQuery.Alias("_user").AsUsers()
      
      println("Username:", resp[0].UserName)
      println("Created at:", resp[0].Create)
      println("Graph privileges:", utils.JSONString(resp[0].GraphPrivileges))
      println("System privileges:", utils.JSONString(resp[0].SystemPrivileges))
      println("Property privileges:", utils.JSONString(resp[0].PropertyPrivileges))
      

      Username: Tester
      Created at: 1970-01-01 08:00:00
      Graph privileges: {"Ad_Click":["FIND_EDGE","FIND_NODE"],"DFS_EG":["UPDATE","INSERT"]}
      System privileges: ["MOUNT_GRAPH"]
      Property privileges: {"edge":{"deny":[],"read":[],"write":[]},"node":{"deny":[],"read":[],"write":[["miniCircle","account","name"]]}}
      

      Stats

      A Stat object has the following fields:

      Field
      Type
      Description
      CPUUsage string CPU usage in percentage
      MemUsage string Memory usage in megabytes
      ExpiredDate string Expiration date of the license
      CPUCores string Number of CPU cores
      Company string Company name
      ServerType string Server type
      Version string Version of the server

      myQuery, _ := conn.Uql("stats()", requestConfig)
      resp, _ := myQuery.Alias("_statistic").AsStats()
      
      println("CPU usage::", resp.CPUUsage, "%")
      println("Memory usage:", resp.MemUsage, "%")
      

      CPU usage:: 16.926739 %
      Memory usage: 11558.082031 %
      

      Process

      A Process (Top) object has the following fields:

      Field
      Type
      Description
      ProcessId string Process ID
      Status string Process status
      ProcessUql string The UQL run with the process
      Duration string The duration in seconds the task has run so far

      myQuery, _ := conn.Uql("top()", requestConfig)
      resp, _ := myQuery.Alias("_top").AsTops()
      
      println(resp[0].ProcessId)
      

      a_5_15518_2
      

      Task

      A Task object has the following fields:

      Field
      Type
      Description
      Param object Algorithm parameters and their corresponding values
      TaskInfo TaskInfo Task information including TaskID, AlgoName, StartTime, TaskStatus, etc.
      ErrorMsg string Error message of the task
      Result object Algorithm result and statistics and their corresponding values

      myQuery, _ := conn.Uql("show().task()", requestConfig)
      resp, _ := myQuery.Alias("_task").AsTasks()
      
      println("Algo name:", resp[0].TaskInfo.AlgoName)
      println("Parameters:", utils.JSONString(resp[0].Param))
      println("Result:", utils.JSONString(resp[0].Result))
      

      Algo name: louvain
      Parameters: {"min_modularity_increase":"0.001","phase1_loop_num":"20"}
      Result: {"community_count":"1228589","modularity":"0.635263","result_files":"communityID"}
      

      Table

      A Table object has the following fields:

      Field
      Type
      Description
      Name string Table name
      Headers []Property Table headers
      Rows []Row Table rows

      Methods on a Table object:

      Method
      Return
      Description
      ToKV() []Values Convert all rows of the table to a key-value list.

      myQuery, _ := conn.Uql("find().nodes() as n return table(n._id, n._uuid) as myTable limit 5", requestConfig)
      resp, _ := myQuery.Alias("myTable").AsTable()
      
      println("2nd row in table:", utils.JSONString(resp.ToKV()[1]))
      

      2nd row in table: {"Data":{"n._id":"u604510","n._uuid":2}}
      

      Attr

      An Attr object has the following fields:

      Field
      Type
      Description
      Name string Alias name
      PropertyType PropertyType Attr type
      ResultType ResultType Attr type description
      Rows Row Attr rows

      myQuery, _ := conn.Uql("find().nodes({@ad}) as n return n.brand limit 5", requestConfig)
      resp, _ := myQuery.Alias("n.brand").AsAttr()
      println(utils.JSONString(resp.Rows))
      

      [14655,14655,14655,14655,434760]
      
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