Package io.vertx.circuitbreaker

Interface RetryPolicy

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface RetryPolicy

A policy for retry execution.

Method Summary

Modifier and Type	Method	Description
static RetryPolicy	constantDelay(long delay)	Create a constant delay retry policy.
long	delay(Throwable failure, int retryCount)	Compute a delay in milliseconds before retry is executed.
static RetryPolicy	exponentialDelayWithJitter(long initialDelay, long maxDelay)	Create an exponential delay with jitter retry policy.
static RetryPolicy	linearDelay(long initialDelay, long maxDelay)	Create a linear delay retry policy.

Method Detail

constantDelay

static RetryPolicy constantDelay(long delay)

Create a constant delay retry policy.

Parameters:

delay - the constant delay in milliseconds

linearDelay

static RetryPolicy linearDelay(long initialDelay,
                               long maxDelay)

Create a linear delay retry policy.

Parameters:

initialDelay - the initial delay in milliseconds

maxDelay - maximum delay in milliseconds

exponentialDelayWithJitter

static RetryPolicy exponentialDelayWithJitter(long initialDelay,
                                              long maxDelay)

Create an exponential delay with jitter retry policy.

Based on the Full Jitter approach described in Exponential Backoff And Jitter.

Parameters:

initialDelay - the initial delay in milliseconds

maxDelay - maximum delay in milliseconds

delay

long delay(Throwable failure,
           int retryCount)

Compute a delay in milliseconds before retry is executed.

Parameters:

failure - the failure of the previous execution attempt

retryCount - the number of times operation has been retried already

Returns:

a delay in milliseconds before retry is executed