protected void initPersisters(
final List associations,
final LockOptions lockOptions,
final AssociationInitCallback callback)
throws MappingException {
final int joins = countEntityPersisters(associations);
final int collections = countCollectionPersisters(associations);
collectionOwners = collections == 0 ? null : new int[collections];
collectionPersisters = collections == 0 ? null : new CollectionPersister[collections];
collectionSuffixes = BasicLoader.generateSuffixes(joins + 1, collections);
this.lockOptions = lockOptions;
persisters = new Loadable[joins];
aliases = new String[joins];
owners = new int[joins];
ownerAssociationTypes = new EntityType[joins];
lockModeArray = ArrayHelper.fillArray(lockOptions.getLockMode(), joins);
int i = 0;
int j = 0;
Iterator iter = associations.iterator();
while (iter.hasNext()) {
final OuterJoinableAssociation oj = (OuterJoinableAssociation) iter.next();
if (!oj.isCollection()) {
persisters[i] = (Loadable) oj.getJoinable();
aliases[i] = oj.getRHSAlias();
owners[i] = oj.getOwner(associations);
ownerAssociationTypes[i] = (EntityType) oj.getJoinableType();
callback.associationProcessed(oj, i);
i++;
} else {
QueryableCollection collPersister = (QueryableCollection) oj.getJoinable();
if (oj.getJoinType() == JoinType.LEFT_OUTER_JOIN && !oj.hasRestriction()) {
// it must be a collection fetch
collectionPersisters[j] = collPersister;
collectionOwners[j] = oj.getOwner(associations);
j++;
}
if (collPersister.isOneToMany()) {
persisters[i] = (Loadable) collPersister.getElementPersister();
aliases[i] = oj.getRHSAlias();
callback.associationProcessed(oj, i);
i++;
}
}
}
if (ArrayHelper.isAllNegative(owners)) owners = null;
if (collectionOwners != null && ArrayHelper.isAllNegative(collectionOwners)) {
collectionOwners = null;
}
}
/**
* Count the number of instances of Joinable which are actually also instances of
* PersistentCollection which are being fetched by outer join
*/
protected static final int countCollectionPersisters(List associations) throws MappingException {
int result = 0;
Iterator iter = associations.iterator();
while (iter.hasNext()) {
OuterJoinableAssociation oj = (OuterJoinableAssociation) iter.next();
if (oj.getJoinType() == JoinType.LEFT_OUTER_JOIN
&& oj.getJoinable().isCollection()
&& !oj.hasRestriction()) {
result++;
}
}
return result;
}