@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;
}