@Override public Collection<Animal> findAnimalsForEnvironment(Environment environment) { if (environment == null) { throw new IllegalArgumentException("Unable to find animals: null environment."); } List<AnimalEnvironment> animalEnvironments = aeDao.findByEnvironment(environment); List<Animal> environments = new ArrayList<>(animalEnvironments.size()); for (AnimalEnvironment ae : animalEnvironments) { environments.add(ae.getAnimal()); } return environments; }
@Override public Collection<Environment> findEnvironmentsForAnimal(Animal animal) { if (animal == null) { throw new IllegalArgumentException("Unable to find environments: null animal."); } List<AnimalEnvironment> animalEnvironments = aeDao.findByAnimal(animal); List<Environment> environments = new ArrayList<>(animalEnvironments.size()); for (AnimalEnvironment ae : animalEnvironments) { environments.add(ae.getEnvironment()); } return environments; }