Ookii. | 
| Class | Description | |
|---|---|---|
| FileDataInput | Provides a stage with input from a file system. | |
| FileDataOutput | Writes stage output to a file system. | |
| FileOutputCommitter | Committer for file output. | |
| FileTaskInput | Represents a task input for a stage using FileDataInput. | |
| TaskInputUtility | Provides methods for saving and loading task inputs. | 
| Interface | Description | |
|---|---|---|
| IDataInput | Provides methods for defining input (other than a channel) to a stage. | |
| IDataOutput | Provides method for defining data output (other than a channel) for a stage. | |
| IOutputCommitter | Provides methods to allow output to be committed. | |
| ITaskInput | Provides methods for describing a task input. |