protected override int ExtractHash(PrioMembersKey key)
{
IdentityLinkedSet <Member> key1 = key.Key1;
int hash = 91 ^ key1.Count;
foreach (Member item in key1)
{
hash ^= item.GetHashCode();
}
return(hash);
}
protected override bool EqualKeys(PrioMembersKey key, MapEntry <PrioMembersKey, IdentityLinkedSet <Member> > entry)
{
PrioMembersKey other = entry.Key;
if (key == other)
{
return(true);
}
IdentityLinkedSet <Member> key1 = key.Key1;
IdentityLinkedSet <Member> otherKey1 = other.Key1;
if (key1.Count != otherKey1.Count)
{
return(false);
}
foreach (Member item in key1)
{
if (!otherKey1.Contains(item))
{
return(false);
}
}
return(true);
}
public IdentityLinkedSet <Member> GetPrioMembers(ILinkedMap <Type, PrefetchPath[]> entityTypeToPrefetchPath,
List <PrefetchCommand> pendingPrefetchCommands, MergePrefetchPathsCache mergePrefetchPathsCache)
{
IdentityLinkedSet <Member> key1 = new IdentityLinkedSet <Member>();
PrioMembersKey key = new PrioMembersKey(entityTypeToPrefetchPath, key1);
for (int a = 0, size = pendingPrefetchCommands.Count; a < size; a++)
{
PrefetchCommand prefetchCommand = pendingPrefetchCommands[a];
key1.Add(prefetchCommand.valueHolder.Member);
}
IdentityLinkedSet <Member> prioMembersMap = activeMembersToPrioMembersMap.Get(key);
if (prioMembersMap != null)
{
return(prioMembersMap);
}
prioMembersMap = new IdentityLinkedSet <Member>(0.5f);
Tuple2KeyHashMap <Type, PrefetchPath[], bool?> alreadyVisited = null;
IdentityHashSet <Type> touchedTypesInPriority = null;
if (mergePrefetchPathsCache == null)
{
mergePrefetchPathsCache = new MergePrefetchPathsCache(entityMetaDataProvider);
}
bool prio2Mode = true;
foreach (PrefetchCommand prefetchCommand in pendingPrefetchCommands)
{
DirectValueHolderRef valueHolder = prefetchCommand.valueHolder;
PrefetchPath[] prefetchPaths = prefetchCommand.prefetchPaths;
RelationMember member = valueHolder.Member;
Type targetEntityType = member.ElementType;
// Merge the root prefetch path with the relative prefetch path
prefetchPaths = mergePrefetchPathsCache.MergePrefetchPaths(targetEntityType, prefetchPaths, entityTypeToPrefetchPath);
IEntityMetaData metaData = valueHolder.Vhc.Get__EntityMetaData();
if (targetEntityType.Equals(metaData.EntityType))
{
// prio1 overrides prio2
if (prio2Mode)
{
prio2Mode = false;
alreadyVisited = null;
prioMembersMap.Clear();
if (touchedTypesInPriority != null)
{
touchedTypesInPriority.Clear();
}
}
prioMembersMap.Add(member);
if (touchedTypesInPriority == null)
{
touchedTypesInPriority = new IdentityHashSet <Type>();
}
touchedTypesInPriority.Add(member.EntityType);
touchedTypesInPriority.Add(targetEntityType);
continue;
}
if (prefetchPaths == null || !prio2Mode)
{
continue;
}
if (alreadyVisited == null)
{
alreadyVisited = new Tuple2KeyHashMap <Type, PrefetchPath[], bool?>();
}
if (IsPrio2Member(metaData, entityMetaDataProvider.GetMetaData(targetEntityType), prefetchPaths, entityTypeToPrefetchPath, alreadyVisited,
mergePrefetchPathsCache))
{
prioMembersMap.Add(member);
if (touchedTypesInPriority == null)
{
touchedTypesInPriority = new IdentityHashSet <Type>();
}
touchedTypesInPriority.Add(member.EntityType);
touchedTypesInPriority.Add(targetEntityType);
}
}
if (prioMembersMap.Count > 0)
{
// check for out-of-order members which have nothing to do (and will never ever have in a transitive manner) with the priorized members
foreach (PrefetchCommand prefetchCommand in pendingPrefetchCommands)
{
DirectValueHolderRef valueHolder = prefetchCommand.valueHolder;
RelationMember member = valueHolder.Member;
if (prioMembersMap.Contains(member))
{
// already priorized
continue;
}
if (touchedTypesInPriority.Contains(member.EntityType) || touchedTypesInPriority.Contains(member.ElementType))
{
continue;
}
prioMembersMap.Add(member);
}
}
Object writeLock = activeMembersToPrioMembersMap.GetWriteLock();
lock (writeLock)
{
IdentityLinkedSet <Member> existingPrioMembersMap = activeMembersToPrioMembersMap.Get(key);
if (existingPrioMembersMap != null)
{
return(existingPrioMembersMap);
}
activeMembersToPrioMembersMap.Put(key, prioMembersMap);
return(prioMembersMap);
}
}
