org.apache.poi.ss.formula.functions
Class Fixed0ArgFunction

java.lang.Object
  extended by org.apache.poi.ss.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.


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.ss.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.