tech.tablesaw.aggregate

Class DateAggregateFunction

java.lang.Object

tech.tablesaw.aggregate.AggregateFunction<DateColumn,LocalDate>

tech.tablesaw.aggregate.DateAggregateFunction

public abstract class DateAggregateFunction
extends AggregateFunction<DateColumn,LocalDate>

A partial implementation of aggregate functions to summarize over a date column

Constructor Summary

Constructors

Constructor and Description
DateAggregateFunction(String name)

Method Summary

Modifier and Type	Method and Description
boolean	isCompatibleColumn(ColumnType type)
ColumnType	returnType()
abstract LocalDate	summarize(DateColumn column)

Methods inherited from class tech.tablesaw.aggregate.AggregateFunction

functionName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DateAggregateFunction

public DateAggregateFunction(String name)

Method Detail

summarize

public abstract LocalDate summarize(DateColumn column)

Specified by:

summarize in class AggregateFunction<DateColumn,LocalDate>

isCompatibleColumn

public boolean isCompatibleColumn(ColumnType type)

Specified by:

isCompatibleColumn in class AggregateFunction<DateColumn,LocalDate>

returnType

public ColumnType returnType()

Specified by:

returnType in class AggregateFunction<DateColumn,LocalDate>