org.apache.paimon.statistics

接口 FieldStatsCollector

所有已知实现类:

AbstractFieldStatsCollector, CountsFieldStatsCollector, FullFieldStatsCollector, NoneFieldStatsCollector, TruncateFieldStatsCollector

public interface FieldStatsCollector

The mode of the field stats.

嵌套类概要

嵌套类

限定符和类型	接口和说明
static interface	FieldStatsCollector.Factory Factory to create FieldStatsCollector.

方法概要

限定符和类型	方法和说明
void	collect(Object field, Serializer<Object> fieldSerializer) collect stats from the field.
FieldStats	convert(FieldStats source) Convert the field stats according to the strategy.
static FieldStatsCollector[]	create(FieldStatsCollector.Factory[] factories)
static FieldStatsCollector.Factory[]	createFullStatsFactories(int numFields)
static FieldStatsCollector.Factory	from(String option)
FieldStats	result()

方法详细资料

collect

void collect(Object field,
             Serializer<Object> fieldSerializer)

collect stats from the field.

参数:

field - The target field object.

fieldSerializer - The serializer of the field object.

result

FieldStats result()

返回:

The collected field stats.

convert

FieldStats convert(FieldStats source)

Convert the field stats according to the strategy.

参数:

source - The source field stats, extracted from the file.

返回:

The converted field stats.

create

static FieldStatsCollector[] create(FieldStatsCollector.Factory[] factories)

from

static FieldStatsCollector.Factory from(String option)

createFullStatsFactories

static FieldStatsCollector.Factory[] createFullStatsFactories(int numFields)