With / Without Example Missing

[haimivan]

Hi,

the benefits of null4j do not come to my easily.

If I compare your documentation with the lombok documentation, it would be great if you had (like lombok) a comparison:
"code looks like with null4j" against "code looks like without null4j"

Thanks!

[Michael-Zinn]

Hi haimivan,

Good idea, I'll add it to the ReadMe for the next version. In the meantime, here's an example for let:

With null4j:

return let(person,
    Person::getAddress,
    Address::getStreet,
    Street::getStreetName);

With Java 8 Optionals:

return Optional.ofNullable(person)
    .map(Person::getAddress)
    .map(Address::getStreet)
    .map(Street::getStreetName)
    .orElse(null);

Raw Java:

if(person == null) return null;
Address address = person.getAddress();
if(address == null) return null;
Street street = address.getStreet();
if(street == null) return null;
String streetName = street.getStreetName();
if(streetName == null) return null;
return streetName;

Here's one for requireNonNullElse:

With null4j:

return requireNonNullElse(
    getLastName(),
    getFirstName(),
    "No Name!"
);

Without null4j:

String lastName = getLastName();
if(lastName != null) return lastName;
String firstName = getFirstName();
if(firstName != null) return firstName;
return "No Name!";