Package org.apache.flink.runtime.metrics

Class NoOpMetricRegistry

java.lang.Object

org.apache.flink.runtime.metrics.NoOpMetricRegistry

All Implemented Interfaces:

MetricRegistry

public class NoOpMetricRegistry
extends Object
implements MetricRegistry

Metric registry which does nothing.

Field Summary

Fields

Modifier and Type	Field	Description
static final MetricRegistry	INSTANCE

Constructor Summary

Constructors

Constructor	Description
NoOpMetricRegistry()

Method Summary

Modifier and Type	Method	Description
void	addSpan(org.apache.flink.traces.SpanBuilder spanBuilder)	Add and log a Span.
char	getDelimiter()	Returns the global delimiter.
int	getNumberReporters()	Returns the number of registered reporters.
ScopeFormats	getScopeFormats()	Returns the scope formats.
void	register(org.apache.flink.metrics.Metric metric, String metricName, AbstractMetricGroup group)	Registers a new Metric with this registry.
void	unregister(org.apache.flink.metrics.Metric metric, String metricName, AbstractMetricGroup group)	Un-registers the given Metric with this registry.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.metrics.MetricRegistry

getMetricQueryServiceGatewayRpcAddress

Field Details

INSTANCE

public static final MetricRegistry INSTANCE

Constructor Details

NoOpMetricRegistry

public NoOpMetricRegistry()

Method Details

getDelimiter

public char getDelimiter()

Description copied from interface: MetricRegistry

Returns the global delimiter.

Specified by:

getDelimiter in interface MetricRegistry

Returns:

global delimiter

getNumberReporters

public int getNumberReporters()

Description copied from interface: MetricRegistry

Returns the number of registered reporters.

Specified by:

getNumberReporters in interface MetricRegistry

register

public void register(org.apache.flink.metrics.Metric metric,
 String metricName,
 AbstractMetricGroup group)

Description copied from interface: MetricRegistry

Registers a new Metric with this registry.

Specified by:

register in interface MetricRegistry

Parameters:

metric - the metric that was added

metricName - the name of the metric

group - the group that contains the metric

unregister

public void unregister(org.apache.flink.metrics.Metric metric,
 String metricName,
 AbstractMetricGroup group)

Description copied from interface: MetricRegistry

Un-registers the given Metric with this registry.

Specified by:

unregister in interface MetricRegistry

Parameters:

metric - the metric that should be removed

metricName - the name of the metric

group - the group that contains the metric

addSpan

public void addSpan(org.apache.flink.traces.SpanBuilder spanBuilder)

Description copied from interface: MetricRegistry

Add and log a Span.

Specified by:

addSpan in interface MetricRegistry

getScopeFormats

public ScopeFormats getScopeFormats()

Description copied from interface: MetricRegistry

Returns the scope formats.

Specified by:

getScopeFormats in interface MetricRegistry

Returns:

scope formats