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

Class DependantMutableMetrics

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable, Cloneable, Metrics

public class DependantMutableMetrics
extends MutableMetrics

This Metrics class handles a metrics chain in which durations are "double counted" by upstream metrics. Durations are corrected upon retrieval by subtracting upstream durations.

Author:

Bob Briody (http://bobbriody.com)

See Also:

Serialized Form

Field Summary

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

annotations, counts, durationNs, id, name, nested

Constructor Summary

Constructors

Constructor and Description
DependantMutableMetrics(String id, String name, DependantMutableMetrics upStreamMetrics)

Method Summary

Modifier and Type	Method and Description
protected void	copyMembers(ImmutableMetrics clone)
long	getDuration(TimeUnit unit) Returns the actual duration taken by this Metrics by subtracting the duration taken by the upstream Step, if one exists.

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

addNested, aggregate, clone, getImmutableClone, getNested, incrementCount, setAnnotation, setCount, setDuration, start, stop

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

getAnnotation, getAnnotations, getCount, getCounts, getId, getName, getNested, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DependantMutableMetrics

public DependantMutableMetrics(String id,
                               String name,
                               DependantMutableMetrics upStreamMetrics)

Method Detail

getDuration

public long getDuration(TimeUnit unit)

Returns the actual duration taken by this Metrics by subtracting the duration taken by the upstream Step, if one exists.

Specified by:

getDuration in interface Metrics

Overrides:

getDuration in class ImmutableMetrics

copyMembers

protected void copyMembers(ImmutableMetrics clone)

Overrides:

copyMembers in class MutableMetrics