Package tech.tablesaw.aggregate

Class InstantAggregateFunction

java.lang.Object

tech.tablesaw.aggregate.AggregateFunction<InstantColumn,Instant>

tech.tablesaw.aggregate.InstantAggregateFunction

public abstract class InstantAggregateFunction
extends AggregateFunction<InstantColumn,Instant>

A partial implementation of aggregate functions to summarize over an instant column

Constructor Summary

Constructors

Constructor	Description
InstantAggregateFunction(String name)	Constructs an InstantAggregateFunction with the given name.

Method Summary

Modifier and Type	Method	Description
boolean	isCompatibleColumn(ColumnType type)	Returns true if the given ColumnType is compatible with this function
ColumnType	returnType()	Returns the ColumnType to be used for the values returned by this function
abstract Instant	summarize(InstantColumn column)	Returns an Instant that is the result of applying this function to the given 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

InstantAggregateFunction

public InstantAggregateFunction(String name)

Constructs an InstantAggregateFunction with the given name. The name may be used to name a column in the output when this function is used by Summarizer

Method Detail

summarize

public abstract Instant summarize(InstantColumn column)

Returns an Instant that is the result of applying this function to the given column

Specified by:

summarize in class AggregateFunction<InstantColumn,Instant>

isCompatibleColumn

public boolean isCompatibleColumn(ColumnType type)

Returns true if the given ColumnType is compatible with this function

Specified by:

isCompatibleColumn in class AggregateFunction<InstantColumn,Instant>

returnType

public ColumnType returnType()

Returns the ColumnType to be used for the values returned by this function

Specified by:

returnType in class AggregateFunction<InstantColumn,Instant>