/** @return any Criteria. If no Criteria has been established we establish one and return it. */
private Criteria getOrEstablishSomeCriteria() {
Criteria criteria = getSomeCriteria();
if (criteria == null) {
final Shard shard = shards.get(0);
criteria = shard.establishCriteria(this);
}
return criteria;
}
/**
* @return Returns an actual Criteria object. If no actual Criteria object has been allocated,
* allocate one and return it.
*/
private Criteria getOrEstablishSomeSubcriteria() {
Criteria crit = getSomeSubcriteria();
if (crit == null) {
Shard shard = shards.get(0);
// this should trigger the creation of all subcriteria for the parent
shard.establishCriteria(parent);
}
return getSomeSubcriteria();
}