metodoParaConsultaComFiltros

/**
	 * List filtered Bovines
	 * 
	 * @param id
	 * @param sex
	 * @param type
	 * @param nick
	 * @return
	 */
public List<Bovine> listarBovinos(Integer id, Sex sex, BovineType type, String nick) {

		CriteriaBuilder criteriaBuilder = manager.getCriteriaBuilder();
		CriteriaQuery<Bovine> query = criteriaBuilder.createQuery(Bovine.class);
		Root<Bovine> root = query.from(Bovine.class);

		Path<Integer> pathId = root.get("id");
		Path<Sex> pathSex = root.get("sex");
		Path<BovineType> pathType = root.get("type");
		Path<String> pathNick = root.get("nick");
		Path<StatusAnimal> pathStatus = root.get("status");

		Predicate conjunction = criteriaBuilder.conjunction();
		conjunction = criteriaBuilder.and(criteriaBuilder.equal(pathStatus, StatusAnimal.ACTIVE));

		if (id != null) {
			Predicate IdIgual = criteriaBuilder.equal(pathId, id);
			conjunction = criteriaBuilder.and(IdIgual);
		}

		if (sex != null) {
			conjunction = criteriaBuilder.and(criteriaBuilder.equal(pathSex, sex));
		}

		if (type != null) {
			conjunction = criteriaBuilder.and(criteriaBuilder.equal(pathType, type));
		}

		if (nick != null && !nick.isEmpty()) {
			conjunction = criteriaBuilder.and(criteriaBuilder.like(pathNick, "%" + nick + "%"));
		}

		TypedQuery<Bovine> typedQuery = manager.createQuery(query.where(conjunction));

		return typedQuery.getResultList();
	}