org.apache.flink.streaming.runtime.operators.sink.committables

Interface CheckpointCommittableManager<CommT>

Type Parameters:

CommT - type of the committable

@Internal
public interface CheckpointCommittableManager<CommT>

A CheckpointCommittableManager collects committables for one checkpoint across potentially multiple upstream subtasks.

While it collects committables from multiple upstream subtasks, it belongs to exactly one committer subtask.

Each upstream subtask of this particular checkpoint is represented by a SubtaskCommittableManager.

Method Summary

Modifier and Type	Method and Description
void	commit(org.apache.flink.api.connector.sink2.Committer<CommT> committer, int maxRetries) Commits all due committables if all respective committables of the specific subtask and checkpoint have been received.
long	getCheckpointId() Returns the checkpoint id in which the committables were created.
int	getNumberOfSubtasks() Returns the number of upstream subtasks belonging to the checkpoint.
Collection<CommT>	getSuccessfulCommittables()
boolean	hasGloballyReceivedAll() Returns true if all committables of all upstream subtasks arrived, which is only guaranteed to happen if the DOP of the caller is 1.
boolean	isFinished()

Method Detail

getCheckpointId

long getCheckpointId()

Returns the checkpoint id in which the committables were created.

Returns:

checkpoint id

getNumberOfSubtasks

int getNumberOfSubtasks()

Returns the number of upstream subtasks belonging to the checkpoint.

isFinished

boolean isFinished()

hasGloballyReceivedAll

boolean hasGloballyReceivedAll()

Returns true if all committables of all upstream subtasks arrived, which is only guaranteed to happen if the DOP of the caller is 1.

commit

void commit(org.apache.flink.api.connector.sink2.Committer<CommT> committer,
            int maxRetries)
     throws IOException,
            InterruptedException

Commits all due committables if all respective committables of the specific subtask and checkpoint have been received.

Parameters:

committer - used to commit to the external system

maxRetries -

Throws:

IOException

InterruptedException

getSuccessfulCommittables

Collection<CommT> getSuccessfulCommittables()