Top Description Fields Constructors Methods
org.apache.poi.ss.formula.atp

pack-priv final Class IfError

extends Object
implements FreeRefFunction
Class Inheritance
All Implemented Interfaces
org.apache.poi.ss.formula.functions.FreeRefFunction
Imports
org.apache.poi.ss.formula.OperationEvaluationContext, .WorkbookEvaluator, org.apache.poi.ss.formula.eval.ErrorEval, .EvaluationException, .ValueEval, org.apache.poi.ss.formula.functions.FreeRefFunction
Implementation of 'Analysis Toolpak' Excel function IFERROR()
Returns an error text if there is an error in the evaluation

Syntax
IFERROR(expression, string)

Field Summary

Modifier and TypeField and Description
public static final FreeRefFunction
instance

Constructor Summary

AccessConstructor and Description
private
IfError()

Method Summary

Modifier and TypeMethod and Description
public ValueEval
evaluate(ValueEval[]
the pre-evaluated arguments for this function. args is never null, nor are any of its elements.
args, OperationEvaluationContext
primarily used to identify the source cell containing the formula being evaluated. may also be used to dynamically create reference evals.
ec)

Implements org.apache.poi.ss.formula.functions.FreeRefFunction.evaluate.

private static ValueEval
evaluateInternal(ValueEval arg, ValueEval iferror, int srcCellRow, int srcCellCol)

Inherited from java.lang.Object:
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Field Detail

instanceback to summary
public static final FreeRefFunction instance

Constructor Detail

IfErrorback to summary
private IfError()

Method Detail

evaluateback to summary
public ValueEval evaluate(ValueEval[] args, OperationEvaluationContext ec)

Implements org.apache.poi.ss.formula.functions.FreeRefFunction.evaluate.

Parameters
args:ValueEval[]

Doc from org.apache.poi.ss.formula.functions.FreeRefFunction.evaluate.

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

ec:OperationEvaluationContext

Doc from org.apache.poi.ss.formula.functions.FreeRefFunction.evaluate.

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

Returns:ValueEval

Doc from org.apache.poi.ss.formula.functions.FreeRefFunction.evaluate.

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

evaluateInternalback to summary
private static ValueEval evaluateInternal(ValueEval arg, ValueEval iferror, int srcCellRow, int srcCellCol) throws EvaluationException