org.apache.paimon.mergetree.compact.aggregate

Class FieldSumAgg

java.lang.Object

org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

org.apache.paimon.mergetree.compact.aggregate.FieldSumAgg

All Implemented Interfaces:

Serializable

public class FieldSumAgg
extends FieldAggregator

sum aggregate a field of a row.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	NAME

Fields inherited from class org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

fieldType

Constructor Summary

Constructors

Constructor and Description
FieldSumAgg(DataType dataType)

Method Summary

Modifier and Type	Method and Description
Object	agg(Object accumulator, Object inputField)
Object	retract(Object accumulator, Object inputField)

Methods inherited from class org.apache.paimon.mergetree.compact.aggregate.FieldAggregator

aggReversed, createFieldAggregator, reset

Methods inherited from class java.lang.Object

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

Field Detail

NAME

public static final String NAME

See Also:

Constant Field Values

Constructor Detail

FieldSumAgg

public FieldSumAgg(DataType dataType)

Method Detail

agg

public Object agg(Object accumulator,
                  Object inputField)

Specified by:

agg in class FieldAggregator

retract

public Object retract(Object accumulator,
                      Object inputField)

Overrides:

retract in class FieldAggregator