Package com.rabbitmq.client.amqp

Interface BackOffDelayPolicy

All Known Implementing Classes:

BackOffDelayPolicy.FixedWithInitialDelayAndTimeoutBackOffPolicy, BackOffDelayPolicy.FixedWithInitialDelayBackOffPolicy

public interface BackOffDelayPolicy

Contract to determine a delay between attempts of some task.

The task is typically the creation of a connection.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static final class	BackOffDelayPolicy.FixedWithInitialDelayAndTimeoutBackOffPolicy	Policy with an initial delay for the first attempt, then a fixed delay, and a timeout.
static final class	BackOffDelayPolicy.FixedWithInitialDelayBackOffPolicy	Policy with an initial delay for the first attempt, then a fixed delay.

Field Summary

Fields

Modifier and Type	Field	Description
static final Duration	TIMEOUT

Method Summary

Modifier and Type	Method	Description
Duration	delay(int recoveryAttempt)	Returns the delay to use for a given attempt.
static BackOffDelayPolicy	fixed(Duration delay)	Policy with a fixed delay.
static BackOffDelayPolicy	fixedWithInitialDelay(Duration initialDelay, Duration delay)	Policy with an initial delay for the first attempt, then a fixed delay.
static BackOffDelayPolicy	fixedWithInitialDelay(Duration initialDelay, Duration delay, Duration timeout)	Policy with an initial delay for the first attempt, then a fixed delay, and a timeout.

Field Details

TIMEOUT

static final Duration TIMEOUT

Method Details

delay

Duration delay(int recoveryAttempt)

Returns the delay to use for a given attempt.

The policy can return the TIMEOUT constant to indicate that the task has reached a timeout.

Parameters:

recoveryAttempt - number of the recovery attempt

Returns:

the delay, TIMEOUT if the task should stop being retried

fixed

static BackOffDelayPolicy fixed(Duration delay)

Policy with a fixed delay.

Parameters:

delay - the fixed delay

Returns:

fixed-delay policy

fixedWithInitialDelay

static BackOffDelayPolicy fixedWithInitialDelay(Duration initialDelay,
 Duration delay)

Policy with an initial delay for the first attempt, then a fixed delay.

Parameters:

initialDelay - delay for the first attempt

delay - delay for other attempts than the first one

Returns:

fixed-delay policy with initial delay

fixedWithInitialDelay

static BackOffDelayPolicy fixedWithInitialDelay(Duration initialDelay,
 Duration delay,
 Duration timeout)

Policy with an initial delay for the first attempt, then a fixed delay, and a timeout.

Parameters:

initialDelay - delay for the first attempt

delay - delay for other attempts than the first one

timeout - timeout

Returns:

fixed-delay policy with initial delay and timeout