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mjedynak/CityRetrieverWithOptional.java

Created April 1, 2018 20:02
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CityRetrieverWithOptional.java
public class CityRetrieverWithOptional {
private final PersonService personService;
public Optional<String> retrieveCity(String name) {
return Optional.ofNullable(personService.getByName(name))
.map(Person::getAddress)
.map(Address::getCity);
}
}
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