alluxio.master.journal.checkpoint

Class CompoundCheckpointFormat.CompoundCheckpointReader

java.lang.Object

alluxio.master.journal.checkpoint.CompoundCheckpointFormat.CompoundCheckpointReader

All Implemented Interfaces:

CheckpointFormat.CheckpointReader

Enclosing class:

CompoundCheckpointFormat

public static class CompoundCheckpointFormat.CompoundCheckpointReader
extends Object
implements CheckpointFormat.CheckpointReader

Reader for compound checkpoints.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompoundCheckpointFormat.CompoundCheckpointReader.Entry A compound checkpoint entry.

Constructor Summary

Constructors

Constructor and Description
CompoundCheckpointReader(CheckpointInputStream in)

Method Summary

Modifier and Type	Method and Description
Optional<CompoundCheckpointFormat.CompoundCheckpointReader.Entry>	nextCheckpoint() Returns an entry for the next checkpoint.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CompoundCheckpointReader

public CompoundCheckpointReader(CheckpointInputStream in)

Parameters:

in - a checkpoint input stream to read from

Method Detail

nextCheckpoint

public Optional<CompoundCheckpointFormat.CompoundCheckpointReader.Entry> nextCheckpoint()
                                                                                 throws IOException

Returns an entry for the next checkpoint.

The entry is only valid until nextCheckpoint is called again.

Returns:

the next checkpoint, or empty if there are no checkpoints remaining

Throws:

IOException