gremlin> marko = g.V().has('name','marko').next() //// (1)
==>v[1]
gremlin> g.V(marko).out('knows') //// (2)
==>v[2]
==>v[4]
gremlin> g.V(marko).out('knows').values('name') //// (3)
==>vadas
==>josh

marko = g.V().has('name','marko').next() //// (1)
g.V(marko).out('knows') //// (2)
g.V(marko).out('knows').values('name') //3

// gremlin-driver module
import org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection;

// gremlin-core module
import static org.apache.tinkerpop.gremlin.process.traversal.AnonymousTraversalSource.traversal;

GraphTraversalSource g = traversal().withRemote(
                DriverRemoteConnection.using("localhost", 8182));

// gremlin-driver module
import org.apache.tinkerpop.gremlin.driver.remote.DriverRemoteConnection;

// gremlin-core module
import static org.apache.tinkerpop.gremlin.process.traversal.AnonymousTraversalSource.traversal;

def g = traversal().withRemote(
                DriverRemoteConnection.using('localhost', 8182))

using Gremlin.Net.IntegrationTest.Process.Traversal.DriverRemoteConnection;
using static Gremlin.Net.Process.Traversal.AnonymousTraversalSource;

var g = Traversal().WithRemote(new DriverRemoteConnection("localhost", 8182));

const traversal = gremlin.process.AnonymousTraversalSource.traversal;

const g = traversal().withRemote(
                new DriverRemoteConnection('ws://localhost:8182/gremlin'));

from gremlin_python.process.anonymous_traversal_source import traversal

g = traversal().withRemote(
          DriverRemoteConnection('ws://localhost:8182/gremlin'))

gremlin> g.withSideEffect('x',['dog','cat','fish']).
           V().has('person','name','marko').select('x').unfold()
==>dog
==>cat
==>fish

g.withSideEffect('x',['dog','cat','fish']).
  V().has('person','name','marko').select('x').unfold()

gremlin> g.V(1).out().values('name') //// (1)
==>lop
==>vadas
==>josh
gremlin> g.V(1).out().map {it.get().value('name')} //// (2)
==>lop
==>vadas
==>josh
gremlin> g.V(1).out().map(values('name')) //// (3)
==>lop
==>vadas
==>josh

g.V(1).out().values('name') //// (1)
g.V(1).out().map {it.get().value('name')} //// (2)
g.V(1).out().map(values('name')) //3

gremlin> g.V().filter {it.get().label() == 'person'} //// (1)
==>v[1]
==>v[2]
==>v[4]
==>v[6]
gremlin> g.V().filter(label().is('person')) //// (2)
==>v[1]
==>v[2]
==>v[4]
==>v[6]
gremlin> g.V().hasLabel('person') //// (3)
==>v[1]
==>v[2]
==>v[4]
==>v[6]

g.V().filter {it.get().label() == 'person'} //// (1)
g.V().filter(label().is('person')) //// (2)
g.V().hasLabel('person') //3

gremlin> g.V().hasLabel('person').sideEffect(System.out.&println) //// (1)
v[1]
==>v[1]
v[2]
==>v[2]
v[4]
==>v[4]
v[6]
==>v[6]
gremlin> g.V().sideEffect(outE().count().aggregate(local,"o")).
               sideEffect(inE().count().aggregate(local,"i")).cap("o","i") //// (2)
==>[i:[0,0,1,1,1,3],o:[3,0,0,0,2,1]]

g.V().hasLabel('person').sideEffect(System.out.&println) //// (1)
g.V().sideEffect(outE().count().aggregate(local,"o")).
      sideEffect(inE().count().aggregate(local,"i")).cap("o","i") //2

gremlin> g.V().branch {it.get().value('name')}.
               option('marko', values('age')).
               option(none, values('name')) //// (1)
==>29
==>vadas
==>lop
==>josh
==>ripple
==>peter
gremlin> g.V().branch(values('name')).
               option('marko', values('age')).
               option(none, values('name')) //// (2)
==>29
==>vadas
==>lop
==>josh
==>ripple
==>peter
gremlin> g.V().choose(has('name','marko'),
                      values('age'),
                      values('name')) //// (3)
==>29
==>vadas
==>lop
==>josh
==>ripple
==>peter

g.V().branch {it.get().value('name')}.
      option('marko', values('age')).
      option(none, values('name')) //// (1)
g.V().branch(values('name')).
      option('marko', values('age')).
      option(none, values('name')) //// (2)
g.V().choose(has('name','marko'),
             values('age'),
             values('name')) //3

gremlin> g.V().out('created').hasNext() //// (1)
==>true
gremlin> g.V().out('created').next() //// (2)
==>v[3]
gremlin> g.V().out('created').next(2) //// (3)
==>v[3]
==>v[5]
gremlin> g.V().out('nothing').tryNext() //// (4)
==>Optional.empty
gremlin> g.V().out('created').toList() //// (5)
==>v[3]
==>v[5]
==>v[3]
==>v[3]
gremlin> g.V().out('created').toSet() //// (6)
==>v[3]
==>v[5]
gremlin> g.V().out('created').toBulkSet() //// (7)
==>v[3]
==>v[3]
==>v[3]
==>v[5]
gremlin> results = ['blah',3]
==>blah
==>3
gremlin> g.V().out('created').fill(results) //// (8)
==>blah
==>3
==>v[3]
==>v[5]
==>v[3]
==>v[3]
gremlin> g.addV('person').iterate() //// (9)

g.V().out('created').hasNext() //// (1)
g.V().out('created').next() //// (2)
g.V().out('created').next(2) //// (3)
g.V().out('nothing').tryNext() //// (4)
g.V().out('created').toList() //// (5)
g.V().out('created').toSet() //// (6)
g.V().out('created').toBulkSet() //// (7)
results = ['blah',3]
g.V().out('created').fill(results) //// (8)
g.addV('person').iterate() //9

gremlin> g.V(1).as('a').out('created').in('created').where(neq('a')).
           addE('co-developer').from('a').property('year',2009) //// (1)
==>e[13][1-co-developer->4]
==>e[14][1-co-developer->6]
gremlin> g.V(3,4,5).aggregate('x').has('name','josh').as('a').
           select('x').unfold().hasLabel('software').addE('createdBy').to('a') //// (2)
==>e[15][3-createdBy->4]
==>e[16][5-createdBy->4]
gremlin> g.V().as('a').out('created').addE('createdBy').to('a').property('acl','public') //// (3)
==>e[17][3-createdBy->1]
==>e[18][5-createdBy->4]
==>e[19][3-createdBy->4]
==>e[20][3-createdBy->6]
gremlin> g.V(1).as('a').out('knows').
           addE('livesNear').from('a').property('year',2009).
           inV().inE('livesNear').values('year') //// (4)
==>2009
==>2009
gremlin> g.V().match(
                 __.as('a').out('knows').as('b'),
                 __.as('a').out('created').as('c'),
                 __.as('b').out('created').as('c')).
               addE('friendlyCollaborator').from('a').to('b').
                 property(id,23).property('project',select('c').values('name')) //// (5)
==>e[23][1-friendlyCollaborator->4]
gremlin> g.E(23).valueMap()
==>[project:lop]
gremlin> vMarko = g.V().has('name','marko').next()
==>v[1]
gremlin> vPeter = g.V().has('name','peter').next()
==>v[6]
gremlin> g.V(vMarko).addE('knows').to(vPeter) //// (6)
==>e[24][1-knows->6]
gremlin> g.addE('knows').from(vMarko).to(vPeter) //// (7)
==>e[25][1-knows->6]

g.V(1).as('a').out('created').in('created').where(neq('a')).
  addE('co-developer').from('a').property('year',2009) //// (1)
g.V(3,4,5).aggregate('x').has('name','josh').as('a').
  select('x').unfold().hasLabel('software').addE('createdBy').to('a') //// (2)
g.V().as('a').out('created').addE('createdBy').to('a').property('acl','public') //// (3)
g.V(1).as('a').out('knows').
  addE('livesNear').from('a').property('year',2009).
  inV().inE('livesNear').values('year') //// (4)
g.V().match(
        __.as('a').out('knows').as('b'),
        __.as('a').out('created').as('c'),
        __.as('b').out('created').as('c')).
      addE('friendlyCollaborator').from('a').to('b').
        property(id,23).property('project',select('c').values('name')) //// (5)
g.E(23).valueMap()
vMarko = g.V().has('name','marko').next()
vPeter = g.V().has('name','peter').next()
g.V(vMarko).addE('knows').to(vPeter) //// (6)
g.addE('knows').from(vMarko).to(vPeter) //7

gremlin> g.addV('person').property('name','stephen')
==>v[13]
gremlin> g.V().values('name')
==>marko
==>vadas
==>lop
==>josh
==>ripple
==>peter
==>stephen
gremlin> g.V().outE('knows').addV().property('name','nothing')
==>v[15]
==>v[17]
gremlin> g.V().has('name','nothing')
==>v[17]
==>v[15]
gremlin> g.V().has('name','nothing').bothE()

g.addV('person').property('name','stephen')
g.V().values('name')
g.V().outE('knows').addV().property('name','nothing')
g.V().has('name','nothing')
g.V().has('name','nothing').bothE()

gremlin> g.V(1).property('country','usa')
==>v[1]
gremlin> g.V(1).property('city','santa fe').property('state','new mexico').valueMap()
==>[country:[usa],city:[santa fe],name:[marko],state:[new mexico],age:[29]]
gremlin> g.V(1).property(list,'age',35) //// (1)
==>v[1]
gremlin> g.V(1).valueMap()
==>[country:[usa],city:[santa fe],name:[marko],state:[new mexico],age:[29,35]]
gremlin> g.V(1).property('friendWeight',outE('knows').values('weight').sum(),'acl','private') //// (2)
==>v[1]
gremlin> g.V(1).properties('friendWeight').valueMap() //// (3)
==>[acl:private]

g.V(1).property('country','usa')
g.V(1).property('city','santa fe').property('state','new mexico').valueMap()
g.V(1).property(list,'age',35) //// (1)
g.V(1).valueMap()
g.V(1).property('friendWeight',outE('knows').values('weight').sum(),'acl','private') //// (2)
g.V(1).properties('friendWeight').valueMap() //3

gremlin> g.V(1).out('created') //// (1)
==>v[3]
gremlin> g.V(1).out('created').aggregate('x') //// (2)
==>v[3]
gremlin> g.V(1).out('created').aggregate(global, 'x') //// (3)
==>v[3]
gremlin> g.V(1).out('created').aggregate('x').in('created') //// (4)
==>v[1]
==>v[4]
==>v[6]
gremlin> g.V(1).out('created').aggregate('x').in('created').out('created') //// (5)
==>v[3]
==>v[5]
==>v[3]
==>v[3]
gremlin> g.V(1).out('created').aggregate('x').in('created').out('created').
                where(without('x')).values('name') //// (6)
==>ripple

g.V(1).out('created') //// (1)
g.V(1).out('created').aggregate('x') //// (2)
g.V(1).out('created').aggregate(global, 'x') //// (3)
g.V(1).out('created').aggregate('x').in('created') //// (4)
g.V(1).out('created').aggregate('x').in('created').out('created') //// (5)
g.V(1).out('created').aggregate('x').in('created').out('created').
       where(without('x')).values('name') //6

gremlin> g.V().out('knows').aggregate('x').cap('x')
==>[v[2],v[4]]
gremlin> g.V().out('knows').aggregate('x').by('name').cap('x')
==>[vadas,josh]

g.V().out('knows').aggregate('x').cap('x')
g.V().out('knows').aggregate('x').by('name').cap('x')

gremlin> g.V().aggregate(global, 'x').limit(1).cap('x')
==>[v[1],v[2],v[3],v[4],v[5],v[6]]
gremlin> g.V().aggregate(local, 'x').limit(1).cap('x')
==>[v[1]]
gremlin> g.withoutStrategies(EarlyLimitStrategy).V().aggregate(local,'x').limit(1).cap('x')
==>[v[1],v[2]]

g.V().aggregate(global, 'x').limit(1).cap('x')
g.V().aggregate(local, 'x').limit(1).cap('x')
g.withoutStrategies(EarlyLimitStrategy).V().aggregate(local,'x').limit(1).cap('x')

gremlin> g.E().aggregate(local,'x').by('weight').cap('x')
==>[0.5,1.0,1.0,0.4,0.4,0.2]

g.E().aggregate(local,'x').by('weight').cap('x')

gremlin> g.V().and(
            outE('knows'),
            values('age').is(lt(30))).
              values('name')
==>marko

g.V().and(
   outE('knows'),
   values('age').is(lt(30))).
     values('name')

gremlin> g.V().where(outE('created').and().outE('knows')).values('name')
==>marko

g.V().where(outE('created').and().outE('knows')).values('name')

gremlin> g.V().as('a').out('created').as('b').select('a','b') //// (1)
==>[a:v[1],b:v[3]]
==>[a:v[4],b:v[5]]
==>[a:v[4],b:v[3]]
==>[a:v[6],b:v[3]]
gremlin> g.V().as('a').out('created').as('b').select('a','b').by('name') //// (2)
==>[a:marko,b:lop]
==>[a:josh,b:ripple]
==>[a:josh,b:lop]
==>[a:peter,b:lop]

g.V().as('a').out('created').as('b').select('a','b') //// (1)
g.V().as('a').out('created').as('b').select('a','b').by('name') //2

gremlin> g.V().hasLabel('software').as('a','b','c').
            select('a','b','c').
              by('name').
              by('lang').
              by(__.in('created').values('name').fold())
==>[a:lop,b:java,c:[marko,josh,peter]]
==>[a:ripple,b:java,c:[josh]]

g.V().hasLabel('software').as('a','b','c').
   select('a','b','c').
     by('name').
     by('lang').
     by(__.in('created').values('name').fold())

gremlin> g.V().sideEffect{println "first: ${it}"}.sideEffect{println "second: ${it}"}.iterate()
first: v[1]
second: v[1]
first: v[2]
second: v[2]
first: v[3]
second: v[3]
first: v[4]
second: v[4]
first: v[5]
second: v[5]
first: v[6]
second: v[6]
gremlin> g.V().sideEffect{println "first: ${it}"}.barrier().sideEffect{println "second: ${it}"}.iterate()
first: v[1]
first: v[2]
first: v[3]
first: v[4]
first: v[5]
first: v[6]
second: v[1]
second: v[2]
second: v[3]
second: v[4]
second: v[5]
second: v[6]

g.V().sideEffect{println "first: ${it}"}.sideEffect{println "second: ${it}"}.iterate()
g.V().sideEffect{println "first: ${it}"}.barrier().sideEffect{println "second: ${it}"}.iterate()

gremlin> graph = TinkerGraph.open()
==>tinkergraph[vertices:0 edges:0]
gremlin> g = traversal().withEmbedded(graph)
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.io('data/grateful-dead.xml').read().iterate()
gremlin> g = traversal().withEmbedded(graph).withoutStrategies(LazyBarrierStrategy) //// (1)
==>graphtraversalsource[tinkergraph[vertices:808 edges:8049], standard]
gremlin> clockWithResult(1){g.V().both().both().both().count().next()} //// (2)
==>7213.343623
==>126653966
gremlin> clockWithResult(1){g.V().repeat(both()).times(3).count().next()} //// (3)
==>7131.270651999999
==>126653966
gremlin> clockWithResult(1){g.V().both().barrier().both().barrier().both().barrier().count().next()} //// (4)
==>12.223825999999999
==>126653966

graph = TinkerGraph.open()
g = traversal().withEmbedded(graph)
g.io('data/grateful-dead.xml').read().iterate()
g = traversal().withEmbedded(graph).withoutStrategies(LazyBarrierStrategy) //// (1)
clockWithResult(1){g.V().both().both().both().count().next()} //// (2)
clockWithResult(1){g.V().repeat(both()).times(3).count().next()} //// (3)
clockWithResult(1){g.V().both().barrier().both().barrier().both().barrier().count().next()} //4

gremlin> graph = TinkerGraph.open()
==>tinkergraph[vertices:0 edges:0]
gremlin> g = traversal().withEmbedded(graph) //// (1)
==>graphtraversalsource[tinkergraph[vertices:0 edges:0], standard]
gremlin> g.io('data/grateful-dead.xml').read().iterate()
gremlin> clockWithResult(1){g.V().both().both().both().count().next()}
==>10.265751999999999
==>126653966
gremlin> g.V().both().both().both().count().iterate().toString() //// (2)
==>[TinkerGraphStep(vertex,[]), VertexStep(BOTH,vertex), NoOpBarrierStep(2500), VertexStep(BOTH,vertex), NoOpBarrierStep(2500), VertexStep(BOTH,edge), CountGlobalStep, NoneStep]

graph = TinkerGraph.open()
g = traversal().withEmbedded(graph) //// (1)
g.io('data/grateful-dead.xml').read().iterate()
clockWithResult(1){g.V().both().both().both().count().next()}
g.V().both().both().both().count().iterate().toString()  //2

gremlin> g.V().group().by(bothE().count()) //// (1)
==>[1:[v[2],v[5],v[6]],3:[v[1],v[3],v[4]]]
gremlin> g.V().group().by(bothE().count()).by('name') //// (2)
==>[1:[vadas,ripple,peter],3:[marko,lop,josh]]
gremlin> g.V().group().by(bothE().count()).by(count()) //// (3)
==>[1:3,3:3]

g.V().group().by(bothE().count()) //// (1)
g.V().group().by(bothE().count()).by('name') //// (2)
g.V().group().by(bothE().count()).by(count())  //3

gremlin> g.V().groupCount('a').by(label).cap('a') //// (1)
==>[software:2,person:4]
gremlin> g.V().groupCount('a').by(label).groupCount('b').by(outE().count()).cap('a','b') //// (2)
==>[a:[software:2,person:4],b:[0:3,1:1,2:1,3:1]]

g.V().groupCount('a').by(label).cap('a') //// (1)
g.V().groupCount('a').by(label).groupCount('b').by(outE().count()).cap('a','b')   //2

gremlin> g.V().hasLabel('person').
               choose(values('age').is(lte(30)),
                 __.in(),
                 __.out()).values('name') //// (1)
==>marko
==>ripple
==>lop
==>lop
gremlin> g.V().hasLabel('person').
               choose(values('age')).
                 option(27, __.in()).
                 option(32, __.out()).values('name') //// (2)
==>marko
==>ripple
==>lop

g.V().hasLabel('person').
      choose(values('age').is(lte(30)),
        __.in(),
        __.out()).values('name') //// (1)
g.V().hasLabel('person').
      choose(values('age')).
        option(27, __.in()).
        option(32, __.out()).values('name') //2

gremlin> g.V().choose(hasLabel('person'), out('created')).values('name') //// (1)
==>lop
==>lop
==>ripple
==>lop
==>ripple
==>lop
gremlin> g.V().choose(hasLabel('person'), out('created'), identity()).values('name') //// (2)
==>lop
==>lop
==>ripple
==>lop
==>ripple
==>lop

g.V().choose(hasLabel('person'), out('created')).values('name') //// (1)
g.V().choose(hasLabel('person'), out('created'), identity()).values('name') //2

gremlin> g.V().hasLabel('person').
               choose(values('name')).
                 option('marko', values('age')).
                 option('josh', values('name')).
                 option('vadas', elementMap()).
                 option('peter', label())
==>29
==>[id:2,label:person,name:vadas,age:27]
==>josh
==>person

g.V().hasLabel('person').
      choose(values('name')).
        option('marko', values('age')).
        option('josh', values('name')).
        option('vadas', elementMap()).
        option('peter', label())

gremlin> g.V().hasLabel('person').
               choose(values('name')).
                 option('marko', values('age')).
                 option(none, values('name'))
==>29
==>vadas
==>josh
==>peter

g.V().hasLabel('person').
      choose(values('name')).
        option('marko', values('age')).
        option(none, values('name'))

gremlin> g.V(1).coalesce(outE('knows'), outE('created')).inV().path().by('name').by(label)
==>[marko,knows,vadas]
==>[marko,knows,josh]
gremlin> g.V(1).coalesce(outE('created'), outE('knows')).inV().path().by('name').by(label)
==>[marko,created,lop]
gremlin> g.V(1).property('nickname', 'okram')
==>v[1]
gremlin> g.V().hasLabel('person').coalesce(values('nickname'), values('name'))
==>okram
==>vadas
==>josh
==>peter

g.V(1).coalesce(outE('knows'), outE('created')).inV().path().by('name').by(label)
g.V(1).coalesce(outE('created'), outE('knows')).inV().path().by('name').by(label)
g.V(1).property('nickname', 'okram')
g.V().hasLabel('person').coalesce(values('nickname'), values('name'))

gremlin> g.V().coin(0.5)
==>v[2]
==>v[3]
gremlin> g.V().coin(0.0)
gremlin> g.V().coin(1.0)
==>v[1]
==>v[2]
==>v[3]
==>v[4]
==>v[5]
==>v[6]

g.V().coin(0.5)
g.V().coin(0.0)
g.V().coin(1.0)

gremlin> g = traversal().withEmbedded(graph).withComputer()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], graphcomputer]
gremlin> g.V().
           connectedComponent().
             with(ConnectedComponent.propertyName, 'component').
           project('name','component').
             by('name').
             by('component')
==>[name:marko,component:1]
==>[name:vadas,component:1]
==>[name:lop,component:1]
==>[name:josh,component:1]
==>[name:ripple,component:1]
==>[name:peter,component:1]
gremlin> g.V().hasLabel('person').
           connectedComponent().
             with(ConnectedComponent.propertyName, 'component').
             with(ConnectedComponent.edges, outE('knows')).
           project('name','component').
             by('name').
             by('component')
==>[name:marko,component:1]
==>[name:vadas,component:1]
==>[name:josh,component:1]
==>[name:peter,component:6]

g = traversal().withEmbedded(graph).withComputer()
g.V().
  connectedComponent().
    with(ConnectedComponent.propertyName, 'component').
  project('name','component').
    by('name').
    by('component')
g.V().hasLabel('person').
  connectedComponent().
    with(ConnectedComponent.propertyName, 'component').
    with(ConnectedComponent.edges, outE('knows')).
  project('name','component').
    by('name').
    by('component')

gremlin> g.V().choose(hasLabel('person'),
             values('name'),
             constant('inhuman')) //// (1)
==>marko
==>vadas
==>inhuman
==>josh
==>inhuman
==>peter
gremlin> g.V().coalesce(
             hasLabel('person').values('name'),
             constant('inhuman')) //// (2)
==>marko
==>vadas
==>inhuman
==>josh
==>inhuman
==>peter

g.V().choose(hasLabel('person'),
    values('name'),
    constant('inhuman')) //// (1)
g.V().coalesce(
    hasLabel('person').values('name'),
    constant('inhuman')) //2

gremlin> g.V().count()
==>6
gremlin> g.V().hasLabel('person').count()
==>4
gremlin> g.V().hasLabel('person').outE('created').count().path() //// (1)
==>[4]
gremlin> g.V().hasLabel('person').outE('created').count().map {it.get() * 10}.path() //// (2)
==>[4,40]

g.V().count()
g.V().hasLabel('person').count()
g.V().hasLabel('person').outE('created').count().path() //// (1)
g.V().hasLabel('person').outE('created').count().map {it.get() * 10}.path() //2

gremlin> g.V(1).both().both()
==>v[1]
==>v[4]
==>v[6]
==>v[1]
==>v[5]
==>v[3]
==>v[1]
gremlin> g.V(1).both().both().cyclicPath()
==>v[1]
==>v[1]
==>v[1]
gremlin> g.V(1).both().both().cyclicPath().path()
==>[v[1],v[3],v[1]]
==>[v[1],v[2],v[1]]
==>[v[1],v[4],v[1]]
gremlin> g.V(1).as('a').out('created').as('b').
           in('created').as('c').
           cyclicPath().
           path()
==>[v[1],v[3],v[1]]
gremlin> g.V(1).as('a').out('created').as('b').
           in('created').as('c').
           cyclicPath().from('a').to('b').
           path()

g.V(1).both().both()
g.V(1).both().both().cyclicPath()
g.V(1).both().both().cyclicPath().path()
g.V(1).as('a').out('created').as('b').
  in('created').as('c').
  cyclicPath().
  path()
g.V(1).as('a').out('created').as('b').
  in('created').as('c').
  cyclicPath().from('a').to('b').
  path()