PInput (core 2.44.0 API)

All Known Subinterfaces:

PCollectionView<T>, PValue

All Known Implementing Classes:

KeyedPCollectionTuple, PBegin, PCollection, PCollectionList, PCollectionRowTuple, PCollectionTuple, PCollectionViews.SimplePCollectionView, PValueBase, WithFailures.Result
```
public interface PInput
```
The interface for things that might be input to a PTransform.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Map<TupleTag<?>,PValue>`	`expand()`	Expands this `PInput` into a list of its component output `PValues`.
`Pipeline`	`getPipeline()`	Returns the owning `Pipeline` of this `PInput`.

- Method Detail
  - getPipeline
```
Pipeline getPipeline()
```
    Returns the owning Pipeline of this PInput.
  - expand
```
java.util.Map<TupleTag<?>,PValue> expand()
```
    Expands this PInput into a list of its component output PValues.
    
    A PValue expands to itself.
    A tuple or list of PValues (such as PCollectionTuple or PCollectionList) expands to its component PValue PValues.
    
    Not intended to be invoked directly by user code.