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

Interface PartitionRequestListener

All Known Implementing Classes:

NettyPartitionRequestListener

public interface PartitionRequestListener

When the netty server receives a downstream task's partition request event and finds its upstream task doesn't register its partition yet, the netty server will construct a PartitionRequestListener and notify the listener when the task deploys itself and registers its partition to ResultPartitionManager.

Method Summary

Modifier and Type	Method and Description
long	getCreateTimestamp() The creation timestamp of this notifier, it's used to check whether the notifier is timeout.
InputChannelID	getReceiverId() Get the input channel id of the notifier.
ResultPartitionID	getResultPartitionId() Get the result partition id of the notifier.
NetworkSequenceViewReader	getViewReader() Get the view reader of the notifier.
void	notifyPartitionCreated(ResultPartition partition) Notify the partition request listener when the given partition is registered.
void	notifyPartitionCreatedTimeout() When the partition request listener is timeout, it will be notified to send PartitionNotFoundException.
void	releaseListener() Release this listener.

Method Detail

getCreateTimestamp

long getCreateTimestamp()

The creation timestamp of this notifier, it's used to check whether the notifier is timeout.

Returns:

the creation timestamp

getResultPartitionId

ResultPartitionID getResultPartitionId()

Get the result partition id of the notifier.

Returns:

the result partition id

getViewReader

NetworkSequenceViewReader getViewReader()

Get the view reader of the notifier.

Returns:

the view reader

getReceiverId

InputChannelID getReceiverId()

Get the input channel id of the notifier.

Returns:

the input channel id

notifyPartitionCreated

void notifyPartitionCreated(ResultPartition partition)
                     throws IOException

Notify the partition request listener when the given partition is registered.

Parameters:

partition - The registered partition.

Throws:

IOException

notifyPartitionCreatedTimeout

void notifyPartitionCreatedTimeout()

When the partition request listener is timeout, it will be notified to send PartitionNotFoundException.

releaseListener

void releaseListener()

Release this listener.