Convert to java 8 lambda

Question

What is the best way convert following traditional java validation into java 8 functional programming way?

if (obj != null) {
    if(obj.isValid) {
     someService.update(obj);
  }
}

obj is an Optional instance. Eg:

Optional<Car> obj = Optional.ofNullable(dao.getCar())

Mikhail · Accepted Answer · 2016-11-16 03:49:25Z

5

obj.filter(e -> e.isValid).ifPresent(someService::update)

answered Nov 16, 2016 at 3:44

Mikhail

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