| Name | Description | Type | Package | Framework |
| Function | A Function is responsible for taking Tuple arguments and returning one or more result Tuples. | Interface | cascading.operation | Cascading |
| FunctionCall | Interface | cascading.operation | Cascading | |
| SetValue | of a given Filter operation. | Class | cascading.operation.function | Cascading |
| UnGroup | That is, for the given field positions, this function will emit a new Tuple for every value. | Class | cascading.operation.function | Cascading |