Package org.apache.poi.ss.formula.functions

Class Single

java.lang.Object

org.apache.poi.ss.formula.functions.Single

All Implemented Interfaces:

FreeRefFunction

public final class Single
extends Object
implements FreeRefFunction

Implementation of the SINGLE function, used by Dynamic Arrays, which is now largely replaced by the @ character.

Field Summary

Fields

Modifier and Type	Field	Description
static final FreeRefFunction	instance

Method Summary

Modifier and Type	Method	Description
ValueEval	evaluate(ValueEval[] args, OperationEvaluationContext ec)

Methods inherited from class java.lang.Object

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

Field Details

instance

public static final FreeRefFunction instance

Method Details

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).