Package org.apache.flink.runtime.rest.handler.legacy.metrics

Enum VoidMetricFetcher

java.lang.Object

java.lang.Enum<VoidMetricFetcher>

org.apache.flink.runtime.rest.handler.legacy.metrics.VoidMetricFetcher

All Implemented Interfaces:

Serializable, Comparable<VoidMetricFetcher>, MetricFetcher

public enum VoidMetricFetcher
extends Enum<VoidMetricFetcher>
implements MetricFetcher

No-op implementation of the MetricFetcher.

Enum Constant Summary

Enum Constants

Enum Constant	Description
INSTANCE

Method Summary

Modifier and Type	Method	Description
long	getLastUpdateTime()
MetricStore	getMetricStore()	Get MetricStore which contains all currently fetched metrics.
void	update()	Trigger fetching of metrics.
static VoidMetricFetcher	valueOf(String name)	Returns the enum constant of this type with the specified name.
static VoidMetricFetcher[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final VoidMetricFetcher INSTANCE

Method Detail

values

public static VoidMetricFetcher[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (VoidMetricFetcher c : VoidMetricFetcher.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static VoidMetricFetcher valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getMetricStore

public MetricStore getMetricStore()

Description copied from interface: MetricFetcher

Get MetricStore which contains all currently fetched metrics.

Specified by:

getMetricStore in interface MetricFetcher

Returns:

MetricStore with all fetched metrics

update

public void update()

Description copied from interface: MetricFetcher

Trigger fetching of metrics.

Specified by:

update in interface MetricFetcher

getLastUpdateTime

public long getLastUpdateTime()

Specified by:

getLastUpdateTime in interface MetricFetcher

Returns:

timestamp of the last update.