How to use

cata

method

in

org.kie.dmn.feel.util.Either

public R getOrElse(R default_value) {
  return cata(e -> default_value, Function.identity());
}

  private Object fetchValue(final Object o, final String... names) {
    Object result = o;
    for (String nr : names) {
      result = EvalHelper.getDefinedValue(result, nr)
                .getValueResult()
                .cata(err -> {
                  // no need to report error here, eg: [ {x:1, y:2}, {x:2} ].y results in [2] with no errors.
                  return null;
                }, Function.identity());
    }
    return result;
  }
}

  Either<FEELEvent, Object> either = (Either<FEELEvent, Object>) result;
  Object eitherResult = either.cata( (left) -> {
    ctx.notifyEvt( () -> {
                  if ( left instanceof InvalidParametersEvent ) {
Object eitherResult = either.cata( (left) -> {
  ctx.notifyEvt( () -> {
                if ( left instanceof InvalidParametersEvent ) {

return actualInputMatch.cata( e -> FEELFnResult.ofError(e), e -> FEELFnResult.ofError(null) );