```
@Experimental
public interface ProjectionConsumer
```
A ProjectionConsumer is a Schema-aware operation (such as a DoFn or PTransform) that has a FieldAccessDescriptor describing which fields the operation accesses.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.Map<java.lang.String,FieldAccessDescriptor>`	`consumesProjection()`	Returns a map from input `TupleTag` id to a `FieldAccessDescriptor` describing which Schema fields `this` must access from the corresponding input `PCollection` to complete successfully.

Interface ProjectionConsumer