在java中的gremlin titan中过滤出顶点数量上的顶点 [英] filter vertices on number of outgoing edges in gremlin titan in java

问题描述

我想使用Java中的gremlin查询和过滤titan中具有超过500个向外边缘的所有顶点...我该怎么做?我已经开始如下

I want to query and filter all vertices with more than 500 outgoing edges in titan using gremlin in java...how do i do this?I have started off as below

    pipe=pipe.start(graph.getVertices());

推荐答案

然后，您需要一个过滤器功能

You then need a filter function

p.start(
  g.getVertices()
   .filter(new PipeFunction<Vertex,Boolean>() {    
             public Boolean compute(Vertex v) {
               // write your logic here to count edges on the vertex and 
               // return true if over 500 and false otherwise
             }));

在Java中使用GremlinPipeline的详细说明此处

Using GremlinPipeline in Java is described more here

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