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java.lang.Objectorg.apache.hadoop.metrics2.lib.MetricMutable
org.apache.hadoop.metrics2.lib.MetricMutableGauge<Long>
org.apache.hadoop.metrics2.lib.MetricMutableGaugeLong
public class MetricMutableGaugeLong
A mutable long gauge
| Field Summary |
|---|
| Fields inherited from class org.apache.hadoop.metrics2.lib.MetricMutable |
|---|
description, name |
| Constructor Summary | |
|---|---|
MetricMutableGaugeLong(String name,
String description,
long initValue)
Construct a mutable long gauge metric |
|
| Method Summary | |
|---|---|
void |
decr()
Decrement the value of the metric by 1 |
void |
decr(long delta)
decrement by delta |
void |
incr()
Increment the value of the metric by 1 |
void |
incr(long delta)
Increment by delta |
void |
set(long value)
Set the value of the metric |
void |
snapshot(MetricsRecordBuilder builder,
boolean all)
Get a snapshot/snapshot of the metric |
| Methods inherited from class org.apache.hadoop.metrics2.lib.MetricMutable |
|---|
changed, clearChanged, setChanged, snapshot |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public MetricMutableGaugeLong(String name,
String description,
long initValue)
name - of the gaugedescription - of the gaugeinitValue - the initial value of the gauge| Method Detail |
|---|
public void incr()
MetricMutableGauge
incr in class MetricMutableGauge<Long>public void incr(long delta)
delta - of the incrementpublic void decr()
MetricMutableGauge
decr in class MetricMutableGauge<Long>public void decr(long delta)
delta - of the decrementpublic void set(long value)
value - to set
public void snapshot(MetricsRecordBuilder builder,
boolean all)
MetricMutable
snapshot in class MetricMutablebuilder - the metrics record builderall - if true, snapshot unchanged metrics as well
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