Package io.prestosql.operator.window

Class FirstValueFunction

java.lang.Object

io.prestosql.spi.function.ValueWindowFunction

io.prestosql.operator.window.FirstValueFunction

All Implemented Interfaces:

WindowFunction

public class FirstValueFunction
extends ValueWindowFunction

Field Summary

Fields inherited from class io.prestosql.spi.function.ValueWindowFunction

windowIndex

Constructor Summary

Constructors

Constructor	Description
FirstValueFunction(List<Integer> argumentChannels, boolean ignoreNulls)

Method Summary

Modifier and Type	Method	Description
void	processRow(BlockBuilder output, int frameStart, int frameEnd, int currentPosition)

Methods inherited from class io.prestosql.spi.function.ValueWindowFunction

processRow, reset, reset

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstValueFunction

public FirstValueFunction(List<Integer> argumentChannels,
                          boolean ignoreNulls)

Method Detail

processRow

public void processRow(BlockBuilder output,
                       int frameStart,
                       int frameEnd,
                       int currentPosition)

Specified by:

processRow in class ValueWindowFunction