Ulang Spring mvc

TamuServiceImpl.java

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package id.web.rohman.ulangspring.service.impl;

import id.web.rohman.ulangspring.model.Tamu;
import id.web.rohman.ulangspring.service.api.TamuService;
import java.util.ArrayList;
import java.util.List;
import org.springframework.stereotype.Service;

/**
 *
 * @author syahril
 */
@Service
public class TamuServiceImpl implements TamuService{

    private List<Tamu> dbPalsu = new ArrayList<Tamu>();
    public TamuServiceImpl() {
        Tamu t = new Tamu();
        t.setName("Ariel");
        t.setAddress("Jakarta");
        t.setEmail("aaa@aaa.com");
        t.setId(dbPalsu.size());
        dbPalsu.add(t);
        
        Tamu t2 = new Tamu();
        t2.setName("rohman");
        t2.setAddress("Bandung");
        t2.setEmail("bb@aaa.com");
        t2.setId(dbPalsu.size());
        dbPalsu.add(t2);
        
    }

    
    public List<Tamu> listTamu() {
        return dbPalsu;
    }
    
    public Tamu findTamuById(Integer id) {
        return dbPalsu.get(id);
    }
}