Package org.apache.dubbo.metrics.collector.sample

Class MetricsNameCountSampler<S,K,M extends Metric>

java.lang.Object

org.apache.dubbo.metrics.collector.sample.SimpleMetricsCountSampler<S,K,M>

org.apache.dubbo.metrics.collector.sample.MetricsNameCountSampler<S,K,M>

All Implemented Interfaces:

MetricsCountSampler<S,K,M>, MetricsSampler

Direct Known Subclasses:

ErrorCodeSampler, ThreadRejectMetricsCountSampler

public abstract class MetricsNameCountSampler<S,K,M extends Metric>
extends SimpleMetricsCountSampler<S,K,M>

Constructor Summary

Constructors

Constructor	Description
MetricsNameCountSampler(DefaultMetricsCollector collector, MetricsCategory metricsCategory, MetricsKey metricsKey)

Method Summary

Modifier and Type	Method	Description
void	addMetricName(K name)
boolean	calSamplesChanged()	Check if samples have been changed.
List<MetricSample>	sample()

Methods inherited from class org.apache.dubbo.metrics.collector.sample.SimpleMetricsCountSampler

getCount, inc

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MetricsNameCountSampler

public MetricsNameCountSampler(DefaultMetricsCollector collector,
 MetricsCategory metricsCategory,
 MetricsKey metricsKey)

Method Details

addMetricName

public void addMetricName(K name)

sample

public List<MetricSample> sample()

calSamplesChanged

public boolean calSamplesChanged()

Description copied from interface: MetricsSampler

Check if samples have been changed. Note that this method will reset the changed flag to false using CAS.

Returns:

true if samples have been changed