PersonService.java

package io.zipcoder.crudapp;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class PersonService {

    @Autowired
    private PersonRepository repository;

    public PersonService(PersonRepository repository){this.repository = repository;}

    public Iterable<Person> showAll() {
        return repository.findAll();}

    public Person show(Long id){
        return repository.findOne(id);} //todo something to do with get method

    public Person create(Person person) {
        return repository.save(person);}

    public Person update(Long id, Person newPersonData) {
        Person originalPerson = repository.findOne(id); //todo something to do with get method
        originalPerson.setFirstName(newPersonData.getFirstName());
        originalPerson.setLastName(newPersonData.getLastName());
        return repository.save(originalPerson);
    }

    public Boolean delete(Long id) {
        repository.delete(id);
        return true;
    }
}