Package org.apache.flink.runtime.io.network.partition

Interface ResultPartitionProvider

All Known Implementing Classes:

ResultPartitionManager

public interface ResultPartitionProvider

Interface for creating result partitions.

Method Summary

Modifier and Type	Method	Description
ResultSubpartitionView	createSubpartitionView(ResultPartitionID partitionId, ResultSubpartitionIndexSet indexSet, BufferAvailabilityListener availabilityListener)	Returns the requested intermediate result partition input view.
Optional<ResultSubpartitionView>	createSubpartitionViewOrRegisterListener(ResultPartitionID partitionId, ResultSubpartitionIndexSet indexSet, BufferAvailabilityListener availabilityListener, PartitionRequestListener partitionRequestListener)	If the upstream task's partition has been registered, returns the result subpartition input view immediately, otherwise register the listener and return empty.
void	releasePartitionRequestListener(PartitionRequestListener listener)	Release the given listener in this result partition provider.

Method Detail

createSubpartitionView

ResultSubpartitionView createSubpartitionView(ResultPartitionID partitionId,
                                              ResultSubpartitionIndexSet indexSet,
                                              BufferAvailabilityListener availabilityListener)
                                       throws IOException

Returns the requested intermediate result partition input view.

Throws:

IOException

createSubpartitionViewOrRegisterListener

Optional<ResultSubpartitionView> createSubpartitionViewOrRegisterListener(ResultPartitionID partitionId,
                                                                          ResultSubpartitionIndexSet indexSet,
                                                                          BufferAvailabilityListener availabilityListener,
                                                                          PartitionRequestListener partitionRequestListener)
                                                                   throws IOException

If the upstream task's partition has been registered, returns the result subpartition input view immediately, otherwise register the listener and return empty.

Parameters:

partitionId - the result partition id

indexSet - the index set

availabilityListener - the buffer availability listener

partitionRequestListener - the partition request listener

Returns:

the result subpartition view

Throws:

IOException - the thrown exception

releasePartitionRequestListener

void releasePartitionRequestListener(PartitionRequestListener listener)

Release the given listener in this result partition provider.

Parameters:

listener - the given listener