org.apache.tinkerpop.gremlin.process.traversal.step.util

Class ComputerAwareStep<S,E>

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep<S,E>

org.apache.tinkerpop.gremlin.process.traversal.step.util.ComputerAwareStep<S,E>

All Implemented Interfaces:

Serializable, Cloneable, Iterator<Traverser<E>>, Step<S,E>, EngineDependent

Direct Known Subclasses:

BranchStep, RepeatStep, RepeatStep.RepeatEndStep

public abstract class ComputerAwareStep<S,E>
extends AbstractStep<S,E>
implements EngineDependent

Author:

Marko A. Rodriguez (http://markorodriguez.com)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ComputerAwareStep.EndStep

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

id, label, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdSetByChild

Constructor Summary

Constructors

Constructor and Description
ComputerAwareStep(Traversal.Admin traversal)

Method Summary

Modifier and Type	Method and Description
ComputerAwareStep<S,E>	clone() Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
protected abstract Iterator<Traverser<E>>	computerAlgorithm()
void	onEngine(TraversalEngine engine)
protected Traverser<E>	processNextStart()
protected abstract Iterator<Traverser<E>>	standardAlgorithm()

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

addStart, addStarts, getId, getLabel, getNextStep, getPreviousStep, getTraversal, hasNext, next, reset, setId, setLabel, setNextStep, setPreviousStep, setTraversal, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

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

getRequirements

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

ComputerAwareStep

public ComputerAwareStep(Traversal.Admin traversal)

Method Detail

processNextStart

protected Traverser<E> processNextStart()
                                 throws NoSuchElementException

Specified by:

processNextStart in class AbstractStep<S,E>

Throws:

NoSuchElementException

onEngine

public void onEngine(TraversalEngine engine)

Specified by:

onEngine in interface EngineDependent

clone

public ComputerAwareStep<S,E> clone()

Description copied from interface: Step

Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication. When cloning a step, it is important that the steps, the cloned step is equivalent to the state of the step when reset() is called. Moreover, the previous and next steps should be set to EmptyStep.

Specified by:

clone in interface Step<S,E>

Overrides:

clone in class AbstractStep<S,E>

Returns:

The cloned step

standardAlgorithm

protected abstract Iterator<Traverser<E>> standardAlgorithm()
                                                     throws NoSuchElementException

Throws:

NoSuchElementException

computerAlgorithm

protected abstract Iterator<Traverser<E>> computerAlgorithm()
                                                     throws NoSuchElementException

Throws:

NoSuchElementException