org.apache.paimon.stats

Class StatsFileHandler

java.lang.Object

org.apache.paimon.stats.StatsFileHandler

public class StatsFileHandler
extends Object

Handler of StatsFile.

Constructor Summary

Constructors

Constructor and Description
StatsFileHandler(SnapshotManager snapshotManager, SchemaManager schemaManager, StatsFile statsFile)

Method Summary

Modifier and Type	Method and Description
void	deleteStats(long snapshotId) Delete stats of the specified snapshot.
void	deleteStats(String statistic)
Optional<Statistics>	readStats() Read stats of the latest snapshot.
Optional<Statistics>	readStats(long snapshotId) Read stats of the specified snapshot.
Optional<Statistics>	readStats(Snapshot snapshot)
String	writeStats(Statistics stats) Write stats to a stats file.

Methods inherited from class java.lang.Object

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

Constructor Detail

StatsFileHandler

public StatsFileHandler(SnapshotManager snapshotManager,
                        SchemaManager schemaManager,
                        StatsFile statsFile)

Method Detail

writeStats

public String writeStats(Statistics stats)

Write stats to a stats file.

Returns:

the written file name

readStats

public Optional<Statistics> readStats()

Read stats of the latest snapshot.

Returns:

stats

readStats

public Optional<Statistics> readStats(long snapshotId)

Read stats of the specified snapshot.

Returns:

stats

readStats

public Optional<Statistics> readStats(Snapshot snapshot)

deleteStats

public void deleteStats(long snapshotId)

Delete stats of the specified snapshot.

deleteStats

public void deleteStats(String statistic)