CheckpointPlan (Flink : Runtime 2.0.0 API)

All Superinterfaces:

FinishedTaskStateProvider

All Known Implementing Classes:

DefaultCheckpointPlan
```
public interface CheckpointPlan
extends FinishedTaskStateProvider
```
The plan of one checkpoint, indicating which tasks to trigger, waiting for acknowledge or commit for one specific checkpoint.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.runtime.checkpoint.FinishedTaskStateProvider
  FinishedTaskStateProvider.PartialFinishingNotSupportedByStateException

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<Execution>`	`getFinishedTasks()`	Returns tasks that have already been finished when taking the checkpoint.
`Collection<ExecutionJobVertex>`	`getFullyFinishedJobVertex()`	Returns the job vertices whose tasks are all finished when taking the checkpoint.
`List<ExecutionVertex>`	`getTasksToCommitTo()`	Returns tasks that are still running when taking the checkpoint, these need to be sent a message when the checkpoint is confirmed.
`List<Execution>`	`getTasksToTrigger()`	Returns the tasks who need to be sent a message when a checkpoint is started.
`List<Execution>`	`getTasksToWaitFor()`	Returns tasks who need to acknowledge a checkpoint before it succeeds.
`boolean`	`mayHaveFinishedTasks()`	Returns whether we support checkpoints after some tasks finished.

Methods inherited from interface org.apache.flink.runtime.checkpoint.FinishedTaskStateProvider
fulfillFinishedTaskStatus, reportTaskFinishedOnRestore, reportTaskHasFinishedOperators

- Method Detail
  - getTasksToTrigger
```
List<Execution> getTasksToTrigger()
```
    Returns the tasks who need to be sent a message when a checkpoint is started.
  - getTasksToWaitFor
```
List<Execution> getTasksToWaitFor()
```
    Returns tasks who need to acknowledge a checkpoint before it succeeds.
  - getTasksToCommitTo
```
List<ExecutionVertex> getTasksToCommitTo()
```
    Returns tasks that are still running when taking the checkpoint, these need to be sent a message when the checkpoint is confirmed.
  - getFinishedTasks
```
List<Execution> getFinishedTasks()
```
    Returns tasks that have already been finished when taking the checkpoint.
  - getFullyFinishedJobVertex
```
@VisibleForTesting
Collection<ExecutionJobVertex> getFullyFinishedJobVertex()
```
    Returns the job vertices whose tasks are all finished when taking the checkpoint.
  - mayHaveFinishedTasks
```
boolean mayHaveFinishedTasks()
```
    Returns whether we support checkpoints after some tasks finished.