Package org.apache.flink.streaming.runtime.io.checkpointing

Interface Summary

Interface	Description
BarrierAlignmentUtil.Cancellable	A handle to a delayed action which can be cancelled.
BarrierAlignmentUtil.DelayableTimer	It can register a task to be executed some time later.
UpstreamRecoveryTracker	Tracks status of upstream channels while they recover.

Class Summary

Class	Description
BarrierAlignmentUtil	Utility for barrier alignment.
CheckpointBarrierHandler	The CheckpointBarrierHandler reacts to checkpoint barrier arriving from the input channels.
CheckpointBarrierTracker	The CheckpointBarrierTracker keeps track of what checkpoint barriers have been received from which input channels.
CheckpointedInputGate	The CheckpointedInputGate uses CheckpointBarrierHandler to handle incoming CheckpointBarrier from the InputGate.
InputProcessorUtil	Utility for creating CheckpointedInputGate based on checkpoint mode for StreamOneInputProcessor.
SingleCheckpointBarrierHandler	SingleCheckpointBarrierHandler is used for triggering checkpoint while reading the first barrier and keeping track of the number of received barriers and consumed barriers.