Package org.sterl.spring.persistent_tasks.api

Class RetryStrategy.MultiplicativeRetryStrategy

java.lang.Object

org.sterl.spring.persistent_tasks.api.RetryStrategy.MultiplicativeRetryStrategy

All Implemented Interfaces:

RetryStrategy

Enclosing interface:

RetryStrategy

public static class RetryStrategy.MultiplicativeRetryStrategy
extends Object
implements RetryStrategy

A retry strategy that determines the next retry time by multiplying the execution count by a scaling factor and adding the result to the current time in the specified temporal unit.

This strategy can be used to create retry intervals that increase multiplicatively with the number of attempts, providing a way to progressively delay retries.

Example: If scalingFactor = 2, unit = ChronoUnit.SECONDS, and executionCount = 3, the next retry will be scheduled after 2 * 3 = 6 seconds from the current time.

Note: The retry attempts will stop once the maximum execution count (maxExecutionCount) is reached.

Nested Class Summary

Nested classes/interfaces inherited from interface org.sterl.spring.persistent_tasks.api.RetryStrategy

RetryStrategy.FixedIntervalRetryStrategy, RetryStrategy.LinearRetryStrategy, RetryStrategy.MultiplicativeRetryStrategy

Field Summary

Fields inherited from interface org.sterl.spring.persistent_tasks.api.RetryStrategy

NO_RETRY, THREE_RETRIES, THREE_RETRIES_IMMEDIATELY

Constructor Summary

Constructors

Constructor	Description
MultiplicativeRetryStrategy()

Method Summary

Modifier and Type	Method	Description
OffsetDateTime	retryAt(int executionCount, Exception error)	Calculates the time of the next retry attempt based on the current execution count and the provided exception.
boolean	shouldRetry(int executionCount, Exception error)	Determines whether a retry should be attempted based on the current execution count and the provided exception.

Methods inherited from class java.lang.Object

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

Constructor Details

MultiplicativeRetryStrategy

public MultiplicativeRetryStrategy()

Method Details

shouldRetry

public boolean shouldRetry(int executionCount,
 @Nullable
 Exception error)

Description copied from interface: RetryStrategy

Determines whether a retry should be attempted based on the current execution count and the provided exception. (optional)

Specified by:

shouldRetry in interface RetryStrategy

Parameters:

executionCount - The number of attempts already made.

error - The exception that triggered the retry.

Returns:

true if the current execution count is less than the maximum execution count; false otherwise.

retryAt

public OffsetDateTime retryAt(int executionCount,
 @Nullable
 Exception error)

Description copied from interface: RetryStrategy

Calculates the time of the next retry attempt based on the current execution count and the provided exception.

Specified by:

retryAt in interface RetryStrategy

Parameters:

executionCount - The number of attempts already made.

error - The exception that triggered the retry.

Returns:

OffsetDateTime of the next execution, null for no retry.