/**
* Lookup a entity based on it's 'primary key' or key column when passed a set.
* This will always return a Container
* @return Bond\Container
*/
public function findBySet(Set $keySet)
{
// the simplest thing that possibly works
// there're a lot of fairly easy performance gains to doing this differently.
// this can be speeded up lots. Think interval intersection with value explosion.
$multiton = $this->makeNewContainer();
// persisted
foreach ($this->instancesPersisted as $key => $entity) {
if ($keySet->contains($key)) {
$multiton->add($entity);
}
}
// unpersisted
foreach ($this->instancesUnpersisted as $entity) {
if ($keySet->contains($entity->keyGet($entity))) {
$multiton->add($entity);
}
}
$persisted = parent::findBySet($keySet);
return $this->makeNewContainer()->add($multiton, $persisted);
}