Fixed1ArgFunction (POI API Documentation)

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org.apache.poi.ss.formula.functions
Class Fixed1ArgFunction

java.lang.Object
  org.apache.poi.ss.formula.functions.Fixed1ArgFunction

All Implemented Interfaces:: Function, Function1Arg

Direct Known Subclasses:: Bin2Dec, CalendarFieldFunction, Code, Columns, Countblank, Errortype, FactDouble, Hex2Dec, Imaginary, ImReal, LogicalFunction, NumericFunction.OneArg, Oct2Dec, PercentEval, Rows, T, UnaryMinusEval, UnaryPlusEval, Value

public abstract class Fixed1ArgFunction
extends java.lang.Object
implements Function1Arg
extends java.lang.Object
implements Function1Arg

Convenience base class for functions that must take exactly one argument.

Constructor Summary
`Fixed1ArgFunction()`

Method Summary
`ValueEval`	`evaluate(ValueEval[] args, int srcRowIndex, int srcColumnIndex)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.apache.poi.ss.formula.functions.Function1Arg
`evaluate`

Constructor Detail

Fixed1ArgFunction

public Fixed1ArgFunction()

Method Detail

evaluate

public final ValueEval evaluate(ValueEval[] args,
                                int srcRowIndex,
                                int srcColumnIndex)

Specified by:: evaluate in interface Function

Parameters:: args - the evaluated function arguments. Empty values are represented with BlankEval or MissingArgEval, never null.; srcRowIndex - row index of the cell containing the formula under evaluation; srcColumnIndex - column index of the cell containing the formula under evaluation
Returns:: The evaluated result, possibly an ErrorEval, never null. Note - Excel uses the error code #NUM! instead of IEEE NaN, so when numeric functions evaluate to Double.NaN be sure to translate the result to ErrorEval.NUM_ERROR.