org.apache.poi.hssf.record.formula.functions
Class Fixed0ArgFunction

java.lang.Object
  org.apache.poi.hssf.record.formula.functions.Fixed0ArgFunction

All Implemented Interfaces:

Function, Function0Arg

Direct Known Subclasses:

Na, Now, Today

public abstract class Fixed0ArgFunction
extends java.lang.Object
implements Function0Arg

Convenience base class for functions that only take zero arguments.

Author:

Josh Micich

Constructor Summary

Fixed0ArgFunction()

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.hssf.record.formula.functions.Function0Arg

evaluate

Constructor Detail

Fixed0ArgFunction

public Fixed0ArgFunction()

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.