Module org.elasticsearch.server

Package org.elasticsearch.index.store

Class ThreadLocalDirectoryMetricHolder<M extends DirectoryMetrics.PluggableMetrics<M>>

java.lang.Object

org.elasticsearch.index.store.ThreadLocalDirectoryMetricHolder<M>

All Implemented Interfaces:

PluggableDirectoryMetricsHolder<M>

public class ThreadLocalDirectoryMetricHolder<M extends DirectoryMetrics.PluggableMetrics<M>>
extends Object
implements PluggableDirectoryMetricsHolder<M>

Constructor Summary

Constructors

Constructor	Description
ThreadLocalDirectoryMetricHolder(Supplier<? extends M> metricsSupplier)

Method Summary

Modifier and Type	Method	Description
M	instance()	Get the instance to record metrics on.
PluggableDirectoryMetricsHolder<M>	singleThreaded()	Get an instance that can be used in a single threaded scope.

Methods inherited from class java.lang.Object

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

Constructor Details

ThreadLocalDirectoryMetricHolder

public ThreadLocalDirectoryMetricHolder(Supplier<? extends M> metricsSupplier)

Method Details

singleThreaded

public PluggableDirectoryMetricsHolder<M> singleThreaded()

Description copied from interface: PluggableDirectoryMetricsHolder

Get an instance that can be used in a single threaded scope. This may be an instance optimized for single threaded use. It cannot be tied to a single thread, but can rely on external synchronization in case it is passed between threads.

Specified by:

singleThreaded in interface PluggableDirectoryMetricsHolder<M extends DirectoryMetrics.PluggableMetrics<M>>

Returns:

single threaded instance.

instance

public M instance()

Description copied from interface: PluggableDirectoryMetricsHolder

Get the instance to record metrics on.

Specified by:

instance in interface PluggableDirectoryMetricsHolder<M extends DirectoryMetrics.PluggableMetrics<M>>

Returns:

the instance to record metrics on.