org.apache.poi.ss.formula.functions
Class Fixed2ArgFunction

java.lang.Object
  org.apache.poi.ss.formula.functions.Fixed2ArgFunction

All Implemented Interfaces:

Function, Function2Arg

Direct Known Subclasses:

ConcatEval, Countif, IntersectionEval, NumericFunction.TwoArg, RangeEval, RelationalOperationEval, TwoOperandNumericOperation, XYNumericFunction

public abstract class Fixed2ArgFunction
extends java.lang.Object
implements Function2Arg

Convenience base class for functions that must take exactly two arguments.

Author:

Josh Micich

Constructor Summary

Fixed2ArgFunction()

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.Function2Arg

evaluate

Constructor Detail

Fixed2ArgFunction

public Fixed2ArgFunction()

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.