io.delta.kernel.internal.checkpoints

Class Checkpointer

Object

io.delta.kernel.internal.checkpoints.Checkpointer

public class Checkpointer
extends Object

Class to load the CheckpointMetaData from `_last_checkpoint` file.

Field Summary

Fields

Modifier and Type	Field and Description
static String	LAST_CHECKPOINT_FILE_NAME The name of the last checkpoint file

Constructor Summary

Constructors

Constructor and Description
Checkpointer(Path tableLogPath)

Method Summary

Modifier and Type	Method and Description
static java.util.Optional<CheckpointInstance>	getLatestCompleteCheckpointFromList(java.util.List<CheckpointInstance> instances, CheckpointInstance notLaterThan) Given a list of checkpoint files, pick the latest complete checkpoint instance which is not later than `notLaterThan`.
java.util.Optional<CheckpointMetaData>	readLastCheckpointFile(TableClient tableClient) Returns information about the most recent checkpoint.

Methods inherited from class Object

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

Field Detail

LAST_CHECKPOINT_FILE_NAME

public static final String LAST_CHECKPOINT_FILE_NAME

The name of the last checkpoint file

See Also:

Constant Field Values

Constructor Detail

Checkpointer

public Checkpointer(Path tableLogPath)

Method Detail

getLatestCompleteCheckpointFromList

public static java.util.Optional<CheckpointInstance> getLatestCompleteCheckpointFromList(java.util.List<CheckpointInstance> instances,
                                                                                         CheckpointInstance notLaterThan)

Given a list of checkpoint files, pick the latest complete checkpoint instance which is not later than `notLaterThan`.

readLastCheckpointFile

public java.util.Optional<CheckpointMetaData> readLastCheckpointFile(TableClient tableClient)

Returns information about the most recent checkpoint.