Package org.dashbuilder.dataset.engine.function

Class CountFunction

java.lang.Object

org.dashbuilder.dataset.engine.function.AbstractFunction

org.dashbuilder.dataset.engine.function.CountFunction

All Implemented Interfaces:

org.dashbuilder.dataset.group.AggregateFunction

public class CountFunction
extends AbstractFunction

It calculates the number of occurrences inside a given collection.

Field Summary

Fields inherited from class org.dashbuilder.dataset.engine.function.AbstractFunction

precission

Constructor Summary

Constructors

Constructor	Description
CountFunction()

Method Summary

Modifier and Type	Method	Description
Object	aggregate(List values)
Object	aggregate(List values, List<Integer> rows)
org.dashbuilder.dataset.group.AggregateFunctionType	getType()

Methods inherited from class org.dashbuilder.dataset.engine.function.AbstractFunction

round

Methods inherited from class java.lang.Object

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

Constructor Detail

CountFunction

public CountFunction()

Method Detail

getType

public org.dashbuilder.dataset.group.AggregateFunctionType getType()

aggregate

public Object aggregate(List values)

aggregate

public Object aggregate(List values,
                        List<Integer> rows)