/** Search the persistence context for an index of the child object, given a collection role */
public Object getIndexInOwner(String entity, String property, Object childEntity, Map mergeMap) {
EntityPersister persister = session.getFactory().getEntityPersister(entity);
CollectionPersister cp = session.getFactory().getCollectionPersister(entity + '.' + property);
Iterator entities = entityEntries.entrySet().iterator();
while (entities.hasNext()) {
Map.Entry me = (Map.Entry) entities.next();
EntityEntry ee = (EntityEntry) me.getValue();
if (persister.isSubclassEntityName(ee.getEntityName())) {
Object instance = me.getKey();
Object index = getIndexInParent(property, childEntity, persister, cp, instance);
if (index == null && mergeMap != null) {
Object unmergedInstance = mergeMap.get(instance);
Object unmergedChild = mergeMap.get(childEntity);
if (unmergedInstance != null && unmergedChild != null) {
index = getIndexInParent(property, unmergedChild, persister, cp, unmergedInstance);
}
}
if (index != null) return index;
}
}
return null;
}
/**
* Search the persistence context for an owner for the child object, given a collection role. If
* <tt>mergeMap</tt> is non-null, also check the detached graph being merged for a parent.
*/
public Serializable getOwnerId(String entity, String property, Object childEntity, Map mergeMap) {
EntityPersister persister = session.getFactory().getEntityPersister(entity);
final CollectionPersister collectionPersister =
session.getFactory().getCollectionPersister(entity + '.' + property);
Iterator entities = entityEntries.entrySet().iterator();
while (entities.hasNext()) {
Map.Entry me = (Map.Entry) entities.next();
EntityEntry ee = (EntityEntry) me.getValue();
if (persister.isSubclassEntityName(ee.getEntityName())) {
Object instance = me.getKey();
// check if the managed object is the parent
boolean found =
isFoundInParent(property, childEntity, persister, collectionPersister, instance);
if (!found && mergeMap != null) {
// check if the detached object being merged is the parent
Object unmergedInstance = mergeMap.get(instance);
Object unmergedChild = mergeMap.get(childEntity);
if (unmergedInstance != null && unmergedChild != null) {
found =
isFoundInParent(
property, unmergedChild, persister, collectionPersister, unmergedInstance);
}
}
if (found) {
return ee.getId();
}
}
}
return null;
}