Package software.amazon.lambda.durable.execution

Class OperationIdGenerator

java.lang.Object

software.amazon.lambda.durable.execution.OperationIdGenerator

public class OperationIdGenerator
extends Object

Generates operation IDs for the durable operations.

Constructor Summary

Constructors

Constructor	Description
OperationIdGenerator(String contextId)

Method Summary

Modifier and Type	Method	Description
static String	hashOperationId(String rawId)	Hashes the given string using SHA-256
String	nextOperationId()	Returns the next globally unique operation ID.

Methods inherited from class java.lang.Object

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

Constructor Details

OperationIdGenerator

public OperationIdGenerator(String contextId)

Method Details

hashOperationId

public static String hashOperationId(String rawId)

Hashes the given string using SHA-256

Parameters:

rawId - the string to hash

Returns:

the hashed string

nextOperationId

public String nextOperationId()

Returns the next globally unique operation ID. Increments an internal counter, concatenates it with the context ID prefix (contextId + "-" + counter), and SHA-256 hashes the result. For root contexts the prefix is the EXECUTION operation ID; for child contexts it is the parent's hashed context ID. This produces IDs like hash("execId-1"), hash("execId-2") at the root level, and hash("<parentHash>-1"), hash("<parentHash>-2") inside a child context.