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java.lang.Objectorg.apache.hadoop.metrics2.lib.MetricMutable
public abstract class MetricMutable
The mutable metric interface
| Field Summary | |
|---|---|
String |
description
description of the metric |
String |
name
name of the metric |
| Constructor Summary | |
|---|---|
MetricMutable(String name,
String description)
Construct a mutable metric |
|
| Method Summary | |
|---|---|
boolean |
changed()
|
protected void |
clearChanged()
Clear the changed flag in the snapshot operations |
protected void |
setChanged()
Set the changed flag in mutable operations |
void |
snapshot(MetricsRecordBuilder builder)
Get a sampe/snapshot of metric if changed |
abstract void |
snapshot(MetricsRecordBuilder builder,
boolean all)
Get a snapshot/snapshot of the metric |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
public final String name
public final String description
| Constructor Detail |
|---|
public MetricMutable(String name,
String description)
name - of the metricdescription - of the metric| Method Detail |
|---|
public abstract void snapshot(MetricsRecordBuilder builder,
boolean all)
builder - the metrics record builderall - if true, snapshot unchanged metrics as wellpublic void snapshot(MetricsRecordBuilder builder)
builder - the metrics record builderprotected void setChanged()
protected void clearChanged()
public boolean changed()
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