Package software.amazon.lambda.durable

Enum Class StepSemantics

java.lang.Object

java.lang.Enum<StepSemantics>

software.amazon.lambda.durable.StepSemantics

All Implemented Interfaces:

Serializable, Comparable<StepSemantics>, Constable

public enum StepSemantics
extends Enum<StepSemantics>

Delivery semantics for step operations.

Controls how the SDK handles step execution and interruption recovery.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
AT_LEAST_ONCE_PER_RETRY	At-least-once delivery (default).
AT_MOST_ONCE_PER_RETRY	At-most-once delivery per retry attempt.

Method Summary

Modifier and Type	Method	Description
static StepSemantics	valueOf(String name)	Returns the enum constant of this class with the specified name.
static StepSemantics[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

AT_LEAST_ONCE_PER_RETRY

public static final StepSemantics AT_LEAST_ONCE_PER_RETRY

At-least-once delivery (default). The step may be re-executed if interrupted. START checkpoint is fire-and-forget.

AT_MOST_ONCE_PER_RETRY

public static final StepSemantics AT_MOST_ONCE_PER_RETRY

At-most-once delivery per retry attempt. The step will not be re-executed if interrupted. START checkpoint is awaited before user code runs. If interrupted, throws StepInterruptedException.

Method Details

values

public static StepSemantics[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static StepSemantics valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null