Package org.apache.pinot.segment.local.aggregator

Class SumValueAggregator

java.lang.Object

org.apache.pinot.segment.local.aggregator.SumValueAggregator

All Implemented Interfaces:

ValueAggregator<Number,Double>

public class SumValueAggregator
extends Object
implements ValueAggregator<Number,Double>

Field Summary

Fields

Modifier and Type	Field	Description
static FieldSpec.DataType	AGGREGATED_VALUE_TYPE

Constructor Summary

Constructors

Constructor	Description
SumValueAggregator()

Method Summary

Modifier and Type	Method	Description
Double	applyAggregatedValue(Double value, Double aggregatedValue)	Applies an aggregated value to the current aggregated value.
Double	applyRawValue(Double value, Number rawValue)	Applies a raw value to the current aggregated value.
Double	cloneAggregatedValue(Double value)	Clones an aggregated value.
Double	deserializeAggregatedValue(byte[] bytes)	De-serializes an aggregated value from a byte array.
FieldSpec.DataType	getAggregatedValueType()	Returns the data type of the aggregated value.
AggregationFunctionType	getAggregationType()	Returns the type of the aggregation.
Double	getInitialAggregatedValue(Number rawValue)	Returns the initial aggregated value.
int	getMaxAggregatedValueByteSize()	Returns the maximum size in bytes of the aggregated values seen so far.
byte[]	serializeAggregatedValue(Double value)	Serializes an aggregated value into a byte array.

Methods inherited from class java.lang.Object

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

Field Detail

AGGREGATED_VALUE_TYPE

public static final FieldSpec.DataType AGGREGATED_VALUE_TYPE

Constructor Detail

SumValueAggregator

public SumValueAggregator()

Method Detail

getAggregationType

public AggregationFunctionType getAggregationType()

Description copied from interface: ValueAggregator

Returns the type of the aggregation.

Specified by:

getAggregationType in interface ValueAggregator<Number,Double>

getAggregatedValueType

public FieldSpec.DataType getAggregatedValueType()

Description copied from interface: ValueAggregator

Returns the data type of the aggregated value.

Specified by:

getAggregatedValueType in interface ValueAggregator<Number,Double>

getInitialAggregatedValue

public Double getInitialAggregatedValue(Number rawValue)

Description copied from interface: ValueAggregator

Returns the initial aggregated value.

Specified by:

getInitialAggregatedValue in interface ValueAggregator<Number,Double>

applyRawValue

public Double applyRawValue(Double value,
                            Number rawValue)

Description copied from interface: ValueAggregator

Applies a raw value to the current aggregated value.

NOTE: if value is mutable, will directly modify the value.

Specified by:

applyRawValue in interface ValueAggregator<Number,Double>

applyAggregatedValue

public Double applyAggregatedValue(Double value,
                                   Double aggregatedValue)

Description copied from interface: ValueAggregator

Applies an aggregated value to the current aggregated value.

NOTE: if value is mutable, will directly modify the value.

Specified by:

applyAggregatedValue in interface ValueAggregator<Number,Double>

cloneAggregatedValue

public Double cloneAggregatedValue(Double value)

Description copied from interface: ValueAggregator

Clones an aggregated value.

Specified by:

cloneAggregatedValue in interface ValueAggregator<Number,Double>

getMaxAggregatedValueByteSize

public int getMaxAggregatedValueByteSize()

Description copied from interface: ValueAggregator

Returns the maximum size in bytes of the aggregated values seen so far.

Specified by:

getMaxAggregatedValueByteSize in interface ValueAggregator<Number,Double>

serializeAggregatedValue

public byte[] serializeAggregatedValue(Double value)

Description copied from interface: ValueAggregator

Serializes an aggregated value into a byte array.

Specified by:

serializeAggregatedValue in interface ValueAggregator<Number,Double>

deserializeAggregatedValue

public Double deserializeAggregatedValue(byte[] bytes)

Description copied from interface: ValueAggregator

De-serializes an aggregated value from a byte array.

Specified by:

deserializeAggregatedValue in interface ValueAggregator<Number,Double>