dev.langchain4j.internal

Class RetryUtils.RetryPolicy.Builder

java.lang.Object

dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder

Enclosing class:

RetryUtils.RetryPolicy

public static final class RetryUtils.RetryPolicy.Builder
extends Object

This class encapsulates a retry policy builder.

Constructor Summary

Constructors

Constructor and Description
Builder() Construct a RetryPolicy.Builder.

Method Summary

Modifier and Type	Method and Description
RetryUtils.RetryPolicy.Builder	backoffExp(double backoffExp) Sets the backoff exponent.
RetryUtils.RetryPolicy	build() Builds a RetryPolicy.
RetryUtils.RetryPolicy.Builder	delayMillis(int delayMillis) Sets the base delay in milliseconds.
RetryUtils.RetryPolicy.Builder	jitterScale(double jitterScale) Sets the jitter scale.
RetryUtils.RetryPolicy.Builder	maxAttempts(int maxAttempts) Sets the default maximum number of attempts.

Methods inherited from class java.lang.Object

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

Constructor Detail

Builder

public Builder()

Construct a RetryPolicy.Builder.

Method Detail

maxAttempts

public RetryUtils.RetryPolicy.Builder maxAttempts(int maxAttempts)

Sets the default maximum number of attempts.

Parameters:

maxAttempts - The maximum number of attempts.

Returns:

this

delayMillis

public RetryUtils.RetryPolicy.Builder delayMillis(int delayMillis)

Sets the base delay in milliseconds.

The delay is calculated as follows:

1. Calculate the raw delay in milliseconds as delayMillis * Math.pow(backoffExp, attempt - 1).
2. Calculate the jitter delay in milliseconds as rawDelayMs + rand.nextInt((int) (rawDelayMs * jitterScale)).
3. Sleep for the jitter delay in milliseconds.

Parameters:

delayMillis - The delay in milliseconds.

Returns:

this

jitterScale

public RetryUtils.RetryPolicy.Builder jitterScale(double jitterScale)

Sets the jitter scale.

The jitter delay in milliseconds is calculated as rawDelayMs + rand.nextInt((int) (rawDelayMs * jitterScale)).

Parameters:

jitterScale - The jitter scale.

Returns:

this

backoffExp

public RetryUtils.RetryPolicy.Builder backoffExp(double backoffExp)

Sets the backoff exponent.

Parameters:

backoffExp - The backoff exponent.

Returns:

this

build

public RetryUtils.RetryPolicy build()

Builds a RetryPolicy.

Returns:

A RetryPolicy.