Class BooleanFunction

java.lang.Object
org.apache.poi.ss.formula.functions.BooleanFunction
All Implemented Interfaces:
Function

public abstract class BooleanFunction extends Object implements Function
Here are the general rules concerning Boolean functions:
  1. Blanks are ignored (not either true or false)
  2. Strings are ignored if part of an area ref or cell ref, otherwise they must be 'true' or 'false'
  3. Numbers: 0 is false. Any other number is TRUE
  4. Areas: *all* cells in area are evaluated according to the above rules
Author:
Amol S. Deshmukh < amolweb at ya hoo dot com >
  • Field Details

    • AND

      public static final Function AND
    • OR

      public static final Function OR
    • FALSE

      public static final Function FALSE
    • TRUE

      public static final Function TRUE
    • NOT

      public static final Function NOT
  • Constructor Details

    • BooleanFunction

      public BooleanFunction()
  • Method Details

    • evaluate

      public final ValueEval evaluate(ValueEval[] args, int srcRow, int srcCol)
      Specified by:
      evaluate in interface Function
      Parameters:
      args - the evaluated function arguments. Empty values are represented with BlankEval or MissingArgEval, never null.
      srcRow - row index of the cell containing the formula under evaluation
      srcCol - 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.
    • getInitialResultValue

      protected abstract boolean getInitialResultValue()
    • partialEvaluate

      protected abstract boolean partialEvaluate(boolean cumulativeResult, boolean currentValue)