org.apache.poi.ss.formula.functions

Class Countifs

java.lang.Object

org.apache.poi.ss.formula.functions.Countifs

All Implemented Interfaces:

FreeRefFunction

public class Countifs
extends java.lang.Object

Implementation for the function COUNTIFS

Syntax: COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2])

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static interface	Baseifs.Aggregator Implements the details of a specific aggregation function

Field Summary

Fields

Modifier and Type	Field and Description
static FreeRefFunction	instance Singleton

Constructor Summary

Constructors

Constructor and Description
Countifs()

Method Summary

Modifier and Type	Method and Description
protected static AreaEval	convertRangeArg(ValueEval eval)
protected Baseifs.Aggregator	createAggregator()
ValueEval	evaluate(ValueEval[] args, OperationEvaluationContext ec)
protected boolean	hasInitialRange() COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2]...) need at least 2 arguments and need to have an even number of arguments (criteria_range1, criteria1 plus x*(criteria_range, criteria))

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final FreeRefFunction instance

Singleton

Constructor Detail

Countifs

public Countifs()

Method Detail

hasInitialRange

protected boolean hasInitialRange()

COUNTIFS(criteria_range1, criteria1, [criteria_range2, criteria2]...) need at least 2 arguments and need to have an even number of arguments (criteria_range1, criteria1 plus x*(criteria_range, criteria))

Returns:

true if there should be a range argument before the criteria pairs

See Also:

Baseifs.hasInitialRange(), COUNTIFS function

createAggregator

protected Baseifs.Aggregator createAggregator()

evaluate

public ValueEval evaluate(ValueEval[] args,
                          OperationEvaluationContext ec)

Specified by:

evaluate in interface FreeRefFunction

Parameters:

args - the pre-evaluated arguments for this function. args is never null, nor are any of its elements.

ec - primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.

Returns:

never null. Possibly an instance of ErrorEval in the case of a specified Excel error (Exceptions are never thrown to represent Excel errors).

convertRangeArg

protected static AreaEval convertRangeArg(ValueEval eval)
                                   throws EvaluationException

Throws:

EvaluationException