org.apache.tinkerpop.gremlin.process.remote.traversal

Interface RemoteTraversal<S,E>

All Superinterfaces:

AutoCloseable, Cloneable, Iterator<E>, Serializable, Traversal<S,E>, Traversal.Admin<S,E>

All Known Implementing Classes:

AbstractRemoteTraversal, DriverRemoteTraversal, EmbeddedRemoteTraversal

public interface RemoteTraversal<S,E>
extends Traversal.Admin<S,E>

A RemoteTraversal is returned from RemoteConnection.submitAsync(Bytecode). It is iterated from within RemoteStep using Traversal.Admin.nextTraverser(). Implementations should typically be given a "result" from a remote source where the traversal was executed. The "result" should be an iterator which preferably has its data bulked.

Note that internally Traversal.Admin.nextTraverser() is called from within a loop (specifically in AbstractStep.next() that breaks properly when a NoSuchElementException is thrown. In other words the "results" should be iterated to force that failure.

Author:

Stephen Mallette (http://stephen.genoprime.com)

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Traversal

Traversal.Admin<S,E>, Traversal.Exceptions, Traversal.Symbols

Method Summary

Modifier and Type	Method and Description
RemoteTraversalSideEffects	getSideEffects() Returns remote side-effects generated by the traversal so that they can be accessible to the client.

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin

addStart, addStarts, addStep, addStep, applyStrategies, clone, equals, getBytecode, getEndStep, getGraph, getParent, getStartStep, getSteps, getStrategies, getTraverserGenerator, getTraverserRequirements, isLocked, nextTraverser, removeStep, removeStep, reset, setGraph, setParent, setSideEffects, setStrategies

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Traversal

asAdmin, close, explain, fill, forEachRemaining, forEachRemaining, iterate, next, none, profile, promise, toBulkSet, toList, toSet, toStream, tryNext

Methods inherited from interface java.util.Iterator

hasNext, next, remove

Method Detail

getSideEffects

RemoteTraversalSideEffects getSideEffects()

Returns remote side-effects generated by the traversal so that they can be accessible to the client. Note that "side-effect" refers to the value in "a" in the traversal g.V().aggregate('a').values('name').

Specified by:

getSideEffects in interface Traversal.Admin<S,E>

Returns:

The traversal sideEffects