com.firebase.jobdispatcher

Class RetryStrategy

java.lang.Object

com.firebase.jobdispatcher.RetryStrategy

public final class RetryStrategy
extends java.lang.Object

RetryStrategy represents an approach to handling job execution failures. Jobs will have a time-based backoff enforced, based on the chosen policy (one of RETRY_POLICY_EXPONENTIAL or RETRY_POLICY_LINEAR.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RetryStrategy.RetryPolicy Defines the list of acceptable retry policies.

Field Summary

Fields

Modifier and Type	Field and Description
static RetryStrategy	DEFAULT_EXPONENTIAL Expected schedule is: [30s, 60s, 120s, 240s, ..., 3600s]
static RetryStrategy	DEFAULT_LINEAR Expected schedule is: [30s, 60s, 90s, 120s, ..., 3600s]
static int	RETRY_POLICY_EXPONENTIAL Increase the backoff time exponentially.
static int	RETRY_POLICY_LINEAR Increase the backoff time linearly.

Method Summary

Modifier and Type	Method and Description
int	getInitialBackoff() Returns the initial backoff (i.e.
int	getMaximumBackoff() Returns the maximum backoff duration in seconds.
int	getPolicy() Returns the backoff policy in place.

Methods inherited from class java.lang.Object

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

Field Detail

RETRY_POLICY_EXPONENTIAL

public static final int RETRY_POLICY_EXPONENTIAL

Increase the backoff time exponentially.

Calculated using initial_backoff * 2 ^ (num_failures - 1).

See Also:

Constant Field Values

RETRY_POLICY_LINEAR

public static final int RETRY_POLICY_LINEAR

Increase the backoff time linearly.

Calculated using initial_backoff * num_failures.

See Also:

Constant Field Values

DEFAULT_EXPONENTIAL

public static final RetryStrategy DEFAULT_EXPONENTIAL

Expected schedule is: [30s, 60s, 120s, 240s, ..., 3600s]

DEFAULT_LINEAR

public static final RetryStrategy DEFAULT_LINEAR

Expected schedule is: [30s, 60s, 90s, 120s, ..., 3600s]

Method Detail

getPolicy

public int getPolicy()

Returns the backoff policy in place.

getInitialBackoff

public int getInitialBackoff()

Returns the initial backoff (i.e. when # of failures == 1), in seconds.

getMaximumBackoff

public int getMaximumBackoff()

Returns the maximum backoff duration in seconds.