Package org.apache.pinot.query.runtime.operator.utils

Class AggregationUtils.Accumulator

java.lang.Object

org.apache.pinot.query.runtime.operator.utils.AggregationUtils.Accumulator

Enclosing class:

AggregationUtils

public static class AggregationUtils.Accumulator
extends Object

Accumulator class which accumulates the aggregated results into the group sets if any

Field Summary

Fields

Modifier and Type	Field	Description
protected DataSchema.ColumnDataType	_dataType
protected int	_inputRef
protected Object	_literal
protected AggregationUtils.Merger	_merger
protected Map<Key,Object>	_results
static Map<String,Function<DataSchema.ColumnDataType,AggregationUtils.Merger>>	MERGERS

Constructor Summary

Constructors

Constructor	Description
Accumulator(RexExpression.FunctionCall aggCall, Map<String,Function<DataSchema.ColumnDataType,AggregationUtils.Merger>> merger, String functionName, DataSchema inputSchema)

Method Summary

Modifier and Type	Method	Description
void	accumulate(Key key, Object[] row)
DataSchema.ColumnDataType	getDataType()
AggregationUtils.Merger	getMerger()
Map<Key,Object>	getResults()

Methods inherited from class java.lang.Object

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

Field Detail

MERGERS

public static final Map<String,Function<DataSchema.ColumnDataType,AggregationUtils.Merger>> MERGERS

_inputRef

protected final int _inputRef

_literal

protected final Object _literal

_results

protected final Map<Key,Object> _results

_merger

protected final AggregationUtils.Merger _merger

_dataType

protected final DataSchema.ColumnDataType _dataType

Constructor Detail

Accumulator

public Accumulator(RexExpression.FunctionCall aggCall,
                   Map<String,Function<DataSchema.ColumnDataType,AggregationUtils.Merger>> merger,
                   String functionName,
                   DataSchema inputSchema)

Method Detail

getResults

public Map<Key,Object> getResults()

getMerger

public AggregationUtils.Merger getMerger()

getDataType

public DataSchema.ColumnDataType getDataType()

accumulate

public void accumulate(Key key,
                       Object[] row)