Package tech.tablesaw.aggregate

Class BooleanAggregateFunction

java.lang.Object

tech.tablesaw.aggregate.AggregateFunction<BooleanColumn,Boolean>

tech.tablesaw.aggregate.BooleanAggregateFunction

public abstract class BooleanAggregateFunction
extends AggregateFunction<BooleanColumn,Boolean>

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

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BooleanAggregateFunction(String name)	Constructs a BooleanAggregateFunction 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 Boolean	summarize(BooleanColumn column)	Returns a Boolean value as a 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 Details

BooleanAggregateFunction

protected BooleanAggregateFunction(String name)

Constructs a BooleanAggregateFunction with the given name. The name is used to name a column in the output when this function is used by Summarizer

Method Details

summarize

public abstract Boolean summarize(BooleanColumn column)

Returns a Boolean value as a result of applying this function to the given column

Specified by:

summarize in class AggregateFunction<BooleanColumn,Boolean>

isCompatibleColumn

public boolean isCompatibleColumn(ColumnType type)

Returns true if the given ColumnType is compatible with this function

Specified by:

isCompatibleColumn in class AggregateFunction<BooleanColumn,Boolean>

returnType

public ColumnType returnType()

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

Specified by:

returnType in class AggregateFunction<BooleanColumn,Boolean>