Package org.apache.bookkeeper.bookie

Interface CheckpointSource

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 final CheckpointSource	DEFAULT

Method Summary

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 Details

DEFAULT

static final CheckpointSource DEFAULT

Method Details

newCheckpoint

CheckpointSource.Checkpoint newCheckpoint()

Request a new a checkpoint.

Returns:

checkpoint.

checkpointComplete

void checkpointComplete(CheckpointSource.Checkpoint checkpoint,
 boolean compact)
                 throws 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:

IOException