Basic Annotations

Some of the basic constructs are as follows

@WorkFlow

A method can be marked with the @Workflow annotation to indicate that it is a workflow definition. Note that a method annotated with @Workflow must return void

@Workflow supports the following parameters:

Parameter Name	Mandatory	Description
version	yes	Flux runtime will ensure that @Tasks of the same version are executed as part of workflow orchestration

@Task

Any method can be marked with the @Task annotation. This annotation can be used to denote re-entrant, stateless methods capable of executing a single, logical piece of work. As will be explained later, a @Task method can be executed on any JVM in a flux container. Thus, it is important that these methods work only on the input data and do not rely on any other state variables of a class.

@Task supports the following parameters:

Parameter Name	Mandatory	Description
version	yes	Flux runtime will ensure that @Tasks of the same version are executed as part of workflow orchestration
timeout	yes	Specifies the time limit given for task execution
retries	no; default 0	Specifies the number of times the orchestrator should re-attempt failed/timed out tasks