小编Jef*_*eff的帖子

图表如下:

gremlin> a = graph.addVertex("name", "alice")
gremlin> b = graph.addVertex("name", "bobby")
gremlin> c = graph.addVertex("name", "cindy")
gremlin> d = graph.addVertex("name", "david")
gremlin> e = graph.addVertex("name", "eliza")
gremlin> a.addEdge("rates",b,"tag","ruby","value",9)
gremlin> b.addEdge("rates",c,"tag","ruby","value",8)
gremlin> c.addEdge("rates",d,"tag","ruby","value",7)
gremlin> d.addEdge("rates",e,"tag","ruby","value",6)
gremlin> e.addEdge("rates",a,"tag","java","value",10)

我有3个脚本:

脚本#1

gremlin> g.V().has('name','alice').
           repeat(out()).
             until(has('name','alice')).
           cyclicPath().
           path().by('name')`
==>[alice,bobby,cindy,david,eliza,alice]

脚本#2

gremlin> g.V().has('name','alice').
           repeat(outE().inV()).
             until(has('name','alice')).
           cyclicPath().
           group().
             by('name').
             by(path().unfold().has('value').values('value').fold()).
           next()
==>alice=[9, 8, 7, 6, 10]

脚本#3

gremlin> g.V().has('name','alice').
           repeat(outE().inV()).
             until(has('name','alice')).
           cyclicPath().
           group().
             by('name').
             by(path().unfold().has('value').values('value').fold()).
           next().collect { k, v ->
             k + '=' + v.withIndex().collect { …