| Interface | Description | 
|---|---|
| PutRowInterface | 
| Class | Description | 
|---|---|
| RowDataInputMapper | 
 This class renamed fields in rows before passing them to the row producer specified 
 | 
| RowOutputDataMapper | 
 This class takes care of mapping output data from the mapping step back to the parent transformation, renaming columns mainly. 
 | 
| SimpleMapping | 
 Execute a mapping: a re-usuable transformation 
 | 
| SimpleMappingData | |
| SimpleMappingMeta | 
 Meta-data for the Mapping step: contains name of the (sub-)transformation to
 execute 
 |