CheckpointSource (Apache BookKeeper :: Parent 4.18.0-SNAPSHOT API)

All Known Implementing Classes:

CheckpointSourceList, Journal
```
public interface CheckpointSource
```
Interface to communicate checkpoint progress.

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static interface CheckpointSource.Checkpoint
A checkpoint presented a time point.

Field Summary

Fields
Modifier and Type Field Description

static CheckpointSource DEFAULT

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`checkpointComplete(CheckpointSource.Checkpoint checkpoint, boolean compact)`	Tell checkpoint source that the checkpoint is completed.
`CheckpointSource.Checkpoint`	`newCheckpoint()`	Request a new a checkpoint.

- Field Detail
  - DEFAULT
```
static final CheckpointSource DEFAULT
```
- Method Detail
  - newCheckpoint
```
CheckpointSource.Checkpoint newCheckpoint()
```
    Request a new a checkpoint.
    
    Returns:
    
    checkpoint.
  - checkpointComplete
```
void checkpointComplete(CheckpointSource.Checkpoint checkpoint,
                        boolean compact)
                 throws java.io.IOException
```
    Tell checkpoint source that the checkpoint is completed. If compact is true, the implementation could compact to reduce size of data containing old checkpoints.
    
    Parameters:
    
    checkpoint - The checkpoint that has been completed
    
    compact - Flag to compact old checkpoints.
    
    Throws:
    
    java.io.IOException