# パッケージ com.amazonaws.services.simpleworkflow.flow.annotations

- クラスの概要
  クラス | 説明
  --- | ---
  NullDataConverter | To be used only by annotations as they do not support `null` parameters.

- 注釈型の概要
  注釈型 | 説明
  --- | ---
  Activities |
  Activity | Optional annotation used on activity methods to override the name and version.
  ActivityRegistrationOptions |
  Asynchronous | Call to @Asynchronous method always returns immediately without executing it code.
  Execute |
  ExponentialRetry | This annotation can be used for retrying failures on any asynchronous executions.
  GetState | Indicates that method is used to retrieve current workflow state.
  ManualActivityCompletion |
  NoWait | Used to mark `Promise` arguments of @Asynchronous methods that should not be waited for.
  Signal |
  SkipTypeRegistration | This can be used on interfaces annotated with `Activities` or `Workflow` to specify no registration options are needed for ActivityType or WorkflowType defined by such interfaces.
  Wait | Used to mark parameters of @`Asynchronous` method that should be waited to be ready.
  Workflow |
  WorkflowRegistrationOptions |