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Gremlin step兼容情況

使用限制

iGraph在SDK接口的使用規(guī)則上與TinkerPop的差異如下:

  • 目前僅支持API方式構(gòu)建query,不支持明文

  • 構(gòu)建traversal時需要以內(nèi)置方法g開頭,并指明圖名,形如g("graph_name"),等同于tinkerPop中的Graph.traversal()

  • 不支持游走中的插入和刪除

  • 擴(kuò)展結(jié)果集數(shù)據(jù)類型,詳見查詢結(jié)果獲取。

對TinkerPop Gremlin的Step接口支持情況

  • 下表中 ? 代表支持,? 代表不支持。

  • iGraph Gremlin語法及算子介紹

step

開源

iGraph

GraphTraversalSource

g("graph_name")

?

?

getStrategies()

?

?

getGraph()

?

?

getBytecode()

?

?

with(String key, Object value)等2個接口

?

?

withComputer()

?

?

withSideEffect(String key, A initialValue)等4個接口

?

?

clone()

?

?

withStrategies(TraversalStrategy... traversalStrategies)等

?

?

withStrategies(final StrategyBase... strategies)

?

?

withoutStrategies(Class<? extends TraversalStrategy>... traversalStrategyClasses)

?

?

withComputer(final Computer computer)等3個接口

?

?

withSideEffect(final String key, final A initialValue)等4個接口

?

?

withSack(final A initialValue)等8個接口

?

?

withSack(final Supplier supplier, final Splitter sackSpliter, final Operator sackMerger)

?

?

withBulk( boolean useBulk)

?

?

withPath()

?

?

addV(String label)

?

?

addV(final Traversal<?, String> vertexLabelTraversal)

?

?

addV()

?

?

addE(final String label)

?

?

addE(final Traversal<?, String> edgeLabelTraversal)

?

?

inject(T... starts)

?

?

V(Object... vertexIds)

?

?

V(final String... keys)

?

?

V(@NonNull List<KeyList> keyLists)

?

?

V(@NonNull KeyList keyList)

?

?

E(Object... edgesIds)

?

?

E(final String... keys)

?

?

E(@NonNull List<KeyList> keyLists)

?

?

E(@NonNull KeyList keyList)

?

?

noSupportedStep(final String stepName, final Object... parameters)

?

?

Traversal

asAdmin()

?

?

tryNext()

?

?

next(final int amount)

?

?

List<E> toList()

?

?

toSet()

?

?

toBulkSet()

?

?

toStream()

?

?

promise(final Function<Traversal<S, E>, T> traversalFunction)

?

?

fill(final C collection)

?

?

none()

?

?

Traversal<S, TraversalMetrics> profile()

?

?

TraversalExplanation explain()

?

?

forEachRemaining(final Class<E2> endType, final Consumer<E2> consumer)

?

?

close()

?

?

Map Step

map(final Function<Traverser<E>, E2> function)

?

?

map(final Traversal<?, E2> mapTraversal)

?

?

flatMap(final Function<Traverser<E>, Iterator<E2>> function)

?

?

flatMap(final Traversal<?, E2> flatMapTraversal)

?

?

id()

?

?

label()

?

?

identity()

?

?

constant(final E2 e)

?

?

V(final Object... vertexIdsOrElements)

?

?

to(final Direction direction, final String... edgeLabels)

?

?

out(final String... edgeLabels)

?

?

in(final String... edgeLabels)

?

?

both(final String... edgeLabels)

?

?

toE(final Direction direction, final String... edgeLabels)

?

?

outE(final String... edgeLabels)

?

?

inE(final String... edgeLabels)

?

?

bothE(final String... edgeLabels)

?

?

toV(final Direction direction)

?

?

inV()

?

?

outV()

?

?

bothV()

?

?

otherV()

?

?

order()

?

?

order(final Scope scope)

?

?

properties(final . String... propertyKeys)

?

?

values(final String... propertyKeys)

?

?

propertyMap(final String... propertyKeys)

?

?

elementMap(final String... propertyKeys)

?

?

valueMap(final String... propertyKeys)

?

?

valueMap(final boolean includeTokens, final String... propertyKeys)

?

?

key()

?

?

value()

?

?

path()

?

?

match(final Traversal<?, ?>... matchTraversals)

?

?

sack()

?

?

loops()

?

?

loops(final String loopName)

?

?

project(final String projectKey, final String... otherProjectKeys)

?

?

select(final Pop pop, final String selectKey1, final String selectKey2, String... otherSelectKeys)

?

?

select(final String selectKey1, final String selectKey2, String... otherSelectKeys)

?

?

select(final Pop pop, final String selectKey)

?

?

select(final String selectKey)

?

?

select(final Pop pop, final Traversal<S, E2> keyTraversal)

?

?

select(final Traversal<S, E2> keyTraversal)

?

?

select(final Column column)

?

?

unfold()

?

?

fold()

?

?

fold(final E2 seed, final BiFunction<E2, E, E2> foldFunction)

?

?

count()

?

?

count(final Scope scope)

?

?

sum()

?

?

sum(final Scope scope)

?

?

max()

?

?

max(final Scope scope)

?

?

min();

?

?

min(final Scope scope)

?

mean();

?

?

mean(final Scope scope)

?

?

group()

?

?

groupCount()

?

?

tree()

?

?

addV(final String vertexLabel)等3個接口

?

?

addE(final String edgeLabel)等2個接口

?

?

to(final String toStepLabel)

?

?

from(final String fromStepLabel)

?

?

to(final Traversal<?, Vertex> toVertex)

?

?

from(final Traversal<?, Vertex> fromVertex);

?

?

to(final Vertex toVertex)

?

?

from(final Vertex fromVertex);

?

?

math(final String expression)

?

?

Filter Step

filter(final Predicate<Traverser<E>> predicate)

?

?

filter(final Traversal<?, ?> filterTraversal)

?

?

or(final Traversal<?, ?>... orTraversals)

?

?

and(final Traversal<?, ?>... andTraversals)

?

?

inject(final E... injections)

?

?

dedup(final Scope scope, final String... dedupLabels)

?

?

dedup(final String... dedupLabels)

?

?

where(final String startKey, final P<String> predicate

?

?

where(final P<String> predicate)

?

?

where(final Traversal<?, ?> whereTraversal)

?

?

has(final String propertyKey, final P<?> predicate)

?

?

has(final T accessor, final P<?> predicate)

?

?

has(final String propertyKey, final Object value)

?

?

has(final T accessor, final Object value)

?

?

has(final String label, final String propertyKey, final P<?> predicate)

?

?

has(final String label, final String propertyKey, final Object value)

?

?

has(final T accessor, final Traversal<?, ?> propertyTraversal)

?

?

has(final String propertyKey, final Traversal<?, ?> propertyTraversal)

?

?

has(final String propertyKey)

?

?

hasNot(final String propertyKey)

?

?

hasLabel(final String label, final String... otherLabels)

?

?

hasLabel(final P<String> predicate)

?

?

hasId(final Object id, final Object... otherIds)

?

?

hasId(final P predicate)

?

?

hasKey(final String label, final String... otherLabels)

?

?

hasKey(final P<String> predicate)

?

?

hasValue(final Object value, final Object... otherValues)

?

?

hasValue(final P<Object> predicate)

?

?

is(final P<E> predicate)

?

?

is(final Object value)

?

?

not(final Traversal<?, ?> notTraversal)

?

?

coin(final double probability)

?

?

range(final long low, final long high)

?

?

range(final Scope scope, final long low, final long high)

?

?

limit(final long limit)

?

?

limit(final Scope scope, final long limit)

?

?

tail()

?

?

tail(final long limit)

?

?

tail(final Scope scope)

?

?

tail(final Scope scope, final long limit)

?

?

skip(final long skip)

?

?

skip(final Scope scope, final long skip)

?

?

timeLimit(final long timeLimit)

?

?

simplePath()

?

?

cyclicPath()

?

?

sample(final int amountToSample)

?

?

sample(final Scope scope, final int amountToSample)

?

?

sample(final Sample sampleOption, final int amountToSample)

?

?

sample(final Sample sampleOption, final Sample sampleOption2, final int amountToSample)

?

?

drop()

?

?

distinct()

?

?

Side-Effect Steps

alias(String sideEffectKey)

?

?

sideEffect(final Consumer<Traverser<E>> consumer)

?

?

sideEffect(final Traversal<?, ?> sideEffectTraversal)

?

?

cap(final String sideEffectKey, final String... sideEffectKeys)

?

?

subgraph(final String sideEffectKey)

?

?

aggregate(final String sideEffectKey)

?

?

aggregate(final Scope scope, final String sideEffectKey)

?

?

group(final String sideEffectKey)

?

?

groupCount(final String sideEffectKey)

?

?

tree(final String sideEffectKey)

?

?

sack(final BiFunction<V, U, V> sackOperator)

?

?

store(final String sideEffectKey)

?

?

profile(final String sideEffectKey)

?

?

profile()

?

?

property(final VertexProperty.Cardinality cardinality, final Object key, final Object value, final Object... keyValues)

?

?

property(final Object key, final Object value, final Object... keyValues)

?

?

branch(final Traversal<?, M> branchTraversal);

?

?

branch(final Function<Traverser<E>, M> function)

?

?

choose(final Traversal<?, M> choiceTraversal)

?

?

choose(final Traversal<?, ?> traversalPredicate, final Traversal<?, E2> trueChoice, final Traversal<?, E2> falseChoice);

?

?

choose(final Traversal<?, ?> traversalPredicate, final Traversal<?, E2> trueChoice)

?

?

choose(final Function<E, M> choiceFunction)

?

?

choose(final Predicate<E> choosePredicate, final Traversal<?, E2> trueChoice, final Traversal<?, E2> falseChoice)

?

?

choose(final Predicate<E> choosePredicate, final Traversal<?, E2> trueChoice)

?

?

optional(final Traversal<?, E2> optionalTraversal)

?

?

union(final Traversal<?, E2>... unionTraversals)

?

?

coalesce(final Traversal<?, E2>... coalesceTraversals)

?

?

repeat(final Traversal<?, E> repeatTraversal)

?

?

repeat(final String loopName, final Traversal<?, E> repeatTraversal)

?

?

emit(final Traversal<?, ?> emitTraversal)

?

?

emit(final Predicate<Traverser<E>> emitPredicate)

?

?

emit()

?

?

until(final Traversal<?, ?> untilTraversal)

?

?

until(final Predicate<Traverser<E>> untilPredicate)

?

?

times(final int maxLoops)

?

?

local(final Traversal<?, E2> localTraversal)

?

?

Vertex Program Steps

pageRank()

?

?

pageRank(final double alpha)

?

?

peerPressure()

?

?

connectedComponent()

?

?

shortestPath()

?

?

program(final VertexProgram<?> vertexProgram)

?

?

Utility Steps

as(final String stepLabel, final String... stepLabels)

?

?

barrier()

?

?

barrier(final int maxBarrierSize)

?

?

index()

?

?

barrier(final Consumer<TraverserSet<Object>> barrierConsumer)

?

?

barrier(final Barrier barrierOption)

?

?

with(final String key)

?

?

with(final String key, final Object value)

?

?

by()

?

?

by(final Traversal<?, ?> traversal)

?

?

by(final T token)

?

?

by(final String key)

?

?

by(final Function<V, Object> function)

?

?

by(final Traversal<?, ?> traversal, final Comparator<V> comparator)

?

?

by(final Comparator<E> comparator)

?

?

by(final Order order)

?

?

by(final String key, final Comparator<V> comparator)

?

?

by(final Function<U, Object> function, final Comparator comparator)

?

?

by(final String table, final String field)

?

?

by(final Traversal traversal, final Order order)

?

?

by(final T accessor, final Order order)

?

?

by(final String key, final Order order)

?

?

by(final Column column, final Order order)

?

?

option(final M pickToken, final Traversal<?, E2> traversalOption)

?

?

option(final Traversal<?, E2> traversalOption)

?

?

option(final int pick, final Traversal optionTraversal)

?

?

option(final String pick, final Traversal optionTraversal)

?

?

option(final Pick pick, final Traversal optionTraversal)

?

?

bulk()

?

?

withBulk()

?

?

withSack()

?

?

needFold()

?

?

fields(final String... fieldNames)

?

?

IO Steps

read()

?

?

write()

?

?

iterate()

?

?