Package io.helidon.config

Class PollingStrategies.ScheduledBuilder

java.lang.Object

io.helidon.config.PollingStrategies.ScheduledBuilder

All Implemented Interfaces:

Builder<PollingStrategy>, Supplier<PollingStrategy>

Enclosing class:

PollingStrategies

public static final class PollingStrategies.ScheduledBuilder
extends Object
implements Builder<PollingStrategy>

A builder for a scheduled polling strategy.

Method Summary

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

Methods inherited from class java.lang.Object

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

Method Detail

create

public static PollingStrategies.ScheduledBuilder create(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(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.

Specified by:

build in interface Builder<PollingStrategy>

Returns:

the new instance

get

public PollingStrategy get()

Specified by:

get in interface Builder<PollingStrategy>

Specified by:

get in interface Supplier<PollingStrategy>