Class BlankEval

java.lang.Object
io.keikai.range.formula.BlankEval
All Implemented Interfaces:
ValueEval

public final class BlankEval extends Object implements ValueEval
Sentinel value representing a blank cell in the formula evaluator.

A reference to an empty cell evaluates to INSTANCE; most arithmetic and comparison contexts coerce blank to 0 or "" per Excel rules. Custom functions should test arg instanceof BlankEval explicitly when they need to distinguish blank from zero / empty-string.

Replaces org.apache.poi.ss.formula.eval.BlankEval.

Since:
7.0.0
  • Field Details

    • INSTANCE

      public static final BlankEval INSTANCE
  • Method Details