com.tinkerpop.gremlin.process.graph.step.util

Class ComputerAwareStep<S,E>

java.lang.Object

com.tinkerpop.gremlin.process.util.AbstractStep<S,E>

com.tinkerpop.gremlin.process.graph.step.util.ComputerAwareStep<S,E>

All Implemented Interfaces:

EngineDependent, Step<S,E>, java.lang.Cloneable, java.util.Iterator<Traverser<E>>

Direct Known Subclasses:

ChooseStep, RepeatStep, UnionStep

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

Author:

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

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	onGraphComputer

Fields inherited from class com.tinkerpop.gremlin.process.util.AbstractStep

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

Constructor Summary

Constructors

Constructor and Description
ComputerAwareStep(Traversal 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 java.util.Iterator<Traverser<E>>	computerAlgorithm()
void	onEngine(TraversalEngine engine)
protected Traverser<E>	processNextStart()
protected abstract java.util.Iterator<Traverser<E>>	standardAlgorithm()

Methods inherited from class com.tinkerpop.gremlin.process.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 com.tinkerpop.gremlin.process.Step

getRequirements

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Field Detail

onGraphComputer

protected boolean onGraphComputer

Constructor Detail

ComputerAwareStep

public ComputerAwareStep(Traversal traversal)

Method Detail

processNextStart

protected Traverser<E> processNextStart()
                                 throws java.util.NoSuchElementException

Specified by:

processNextStart in class AbstractStep<S,E>

Throws:

java.util.NoSuchElementException

onEngine

public void onEngine(TraversalEngine engine)

Specified by:

onEngine in interface EngineDependent

clone

public ComputerAwareStep<S,E> clone()
                             throws java.lang.CloneNotSupportedException

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

Throws:

java.lang.CloneNotSupportedException

standardAlgorithm

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

Throws:

java.util.NoSuchElementException

computerAlgorithm

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

Throws:

java.util.NoSuchElementException