Package io.helidon.config

Class PollingStrategies.ScheduledBuilder

java.lang.Object

io.helidon.config.PollingStrategies.ScheduledBuilder

All Implemented Interfaces:

java.util.function.Supplier<PollingStrategy>

Enclosing class:

PollingStrategies

public static final class PollingStrategies.ScheduledBuilder
extends java.lang.Object
implements java.util.function.Supplier<PollingStrategy>

A builder for a scheduled polling strategy.

Method Summary

Modifier and Type	Method	Description
PollingStrategy	build()	Builds a new polling strategy.
PollingStrategies.ScheduledBuilder	executor(java.util.concurrent.ScheduledExecutorService executor)	Sets a custom service used to schedule polling ticks on.
static PollingStrategies.ScheduledBuilder	from(Config metaConfig)	Initializes polling strategy instance from configuration properties.
PollingStrategy	get()

Methods inherited from class java.lang.Object

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

Method Detail

from

public static PollingStrategies.ScheduledBuilder from(Config metaConfig)
                                               throws ConfigMappingException,
                                                      MissingValueException

Initializes polling strategy instance from configuration properties.

Mandatory properties, see PollingStrategies.regular(Duration):

• interval - type Duration, e.g. PT15S means 15 seconds

Parameters:

metaConfig - meta-configuration used to initialize returned polling strategy builder instance from.

Returns:

new instance of polling strategy builder described by metaConfig

Throws:

MissingValueException - in case the configuration tree does not contain all expected sub-nodes required by the mapper implementation to provide instance of Java type.

ConfigMappingException - in case the mapper fails to map the (existing) configuration tree represented by the supplied configuration node to an instance of a given Java type.

See Also:

PollingStrategies.regular(Duration)

executor

public PollingStrategies.ScheduledBuilder executor(java.util.concurrent.ScheduledExecutorService executor)

Sets a custom service used to schedule polling ticks on.

By default it is a new thread pool executor per polling strategy instance.

Parameters:

executor - the custom scheduled executor service

Returns:

a modified builder instance

build

public PollingStrategy build()

Builds a new polling strategy.

Returns:

the new instance

get

public PollingStrategy get()

Specified by:

get in interface java.util.function.Supplier<PollingStrategy>