Generic Stack Spring

bar.java

// BaseEntity
public abstract class BaseEntity<ID extends Serializable> 
	extends AbstractPersistable<ID>{

	private static final long serialVersionUID = 1L;

	@Override
	public String toString(){
		return ToStringBuilder.reflectionToString(this, ToStringStyle.MULTI_LINE_STYLE);
	}
	
	@Override
	public boolean equals(Object obj){
		return EqualsBuilder.reflectionEquals(this, obj);
	}
	
	@Override
	public void setId(ID id){
		super.setId(id);
	}

	@JsonIgnore
	@Override
	public boolean isNew(){
		return super.isNew();
	}
}

// RestServiceMap 
@RequestMapping(consumes="application/json", produces="application/json")
public interface RestServiceMap {	
}

// RestController
public abstract class RestController<T extends BaseEntity<ID>, ID extends Serializable> implements ServiceMap {

	private final Logger LOGGER = Logger.getLogger(getClass());

	@Autowired
	protected JpaRepository<T, ID> genericRepository;

	@RequestMapping(method=RequestMethod.GET)
	public List<T> findAll(){
		this.LOGGER.info("Requesting all records.");
		
		return this.genericRepository.findAll();
	}	

	@RequestMapping(method=RequestMethod.POST)
	public T create(@RequestBody @Valid T t,
	              BindingResult bindingResult) throws Exception {

	if (bindingResult.hasErrors()) {
	  this.LOGGER.info(String.format("Error create the entity [%s].", t));
	  throw new Exception("Validation Error");
	}

	this.LOGGER.info(String.format("Creating the entity [%s].", t));

	return this.genericRepository.insert(t);
	}
}

// ServicePath
public final class ServicePath {

	public static final String ALL = "/**";
	
	public static final String ROOT_PATH = "/api";

	public static final String PUBLIC_ROOT_PATH = ROOT_PATH + "/public";

	public static final String PRIVATE_ROOT_PATH = ROOT_PATH + "/private";

	public static final String USER_PATH = PRIVATE_ROOT_PATH + "/users";
	
}

// UserController
@RestController
@RequestMapping(path=ServicePath.CUSTOMER_PATH)
public class UserController extends RestController<User, String> {

}