Step Context

The StepContext class encapsulates the context and state of a single step within a process. It holds essential information that is used throughout the execution of the step, ensuring that each step operates with the necessary data and configuration.

Fields

Field	Description
id	The unique identifier for the step context. The id consists of a step id, step reference and the process id.
parentId	The identifier of the parent step context, if any.
parentExecutionId	The execution ID of the parent step, linking this step to its parent execution.
stepDefinitionSnapshot	A snapshot of the step's definition at the time of execution, capturing its configuration and parameters.
input	A key value pair containing the inputs provided to the step during execution.
output	A key value pair containing the outputs produced by the step after execution.
status	The current status of the step, indicating whether it is running, completed, failed, etc. Refer to Step Status for full list.
workerId	The identifier of the worker responsible for executing the step.
priority	The priority level assigned to the step, determining its execution order relative to other steps.
optional	Indicates whether the step is optional, allowing the process to continue even if this step fails.
start	The epoch timestamp indicating when the step started execution.
schedule	The epoch timestamp indicating when the step is scheduled to execute.
updated	The epoch timestamp indicating when the step was last updated.
executions	A list of StepExecution instances representing each execution attempt of the step.

StepExecution

The StepExecution class represents a single execution attempt of a step. It tracks the lifecycle of the execution, including scheduling, polling, starting, updating, and producing outputs.

Fields

Field	Description
id	The unique sequential identifier for the step execution.
scheduled	The epoch timestamp when the execution was scheduled.
polled	The epoch timestamp when the execution was polled by a worker for processing.
start	The epoch timestamp when the execution started.
updated	The epoch timestamp when the execution was last updated.
executor	The identifier of the executor responsible for handling the execution.
ref	A reference string associated with the execution
runs	An integer tracking the number of times the execution has been attempted.
output	A map containing the output produced by this specific execution attempt. This value is only populated if a new step execution happens after this execution. Until then the output is held in the main output of the step context.