conditionalExecutionOfDifferentMethods

conditionalExecutionOfDifferentMethods.java

  // instead of
  public void legacyConditionalExecutionOfDifferentMethods(String nullableValue) {
    if (nullableValue == null) {
      exec.methodOne(DEFAULT);
    } else {
      exec.methodTwo(nullableValue);
    }
  }

  // do it the functional way
  public void vavrConditionalExecutionOfDifferentMethods(String nullableValue) {
    Option.of(nullableValue)
      .peek(exec::methodTwo)
      .onEmpty(() -> exec.methodOne(DEFAULT));
  }