WorkProcessor.Transformation (trino-main 366 API)

All Known Subinterfaces:

PageJoiner

All Known Implementing Classes:

DefaultPageJoiner

Enclosing interface:

WorkProcessor<T>
```
public static interface WorkProcessor.Transformation<T,R>
```

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`WorkProcessor.TransformationState<R>`	`process(T element)`	Processes input elements and returns current transformation state.

- Method Detail
  - process
```
WorkProcessor.TransformationState<R> process(@Nullable
                                             T element)
```
    Processes input elements and returns current transformation state.
    
    Parameters:
    
    element - an element to be transformed. Will be null when there are no more elements. In such case transformation should finish processing and flush any remaining data.
    
    Returns:
    
    the current transformation state, optionally bearing a result
    
    See Also:
    
    WorkProcessor.TransformationState.needsMoreData(), WorkProcessor.TransformationState.blocked(ListenableFuture), WorkProcessor.TransformationState.yielded(), WorkProcessor.TransformationState.ofResult(Object), WorkProcessor.TransformationState.ofResult(Object, boolean), WorkProcessor.TransformationState.finished()