protected void CheckCascadeRefreshNeeded(CacheDependencyNode node)
{
CacheChangeItem[] cacheChangeItems = node.cacheChangeItems;
if (cacheChangeItems == null)
{
return;
}
HashMap <IObjRef, CacheValueAndPrivilege> objRefToCacheValueMap = node.objRefToCacheValueMap;
for (int c = cacheChangeItems.Length; c-- > 0;)
{
CacheChangeItem cci = cacheChangeItems[c];
if (cci == null)
{
continue;
}
IList <IObjRef> objectRefsToUpdate = cci.UpdatedObjRefs;
IList <Object> objectsToUpdate = cci.UpdatedObjects;
for (int a = objectRefsToUpdate.Count; a-- > 0;)
{
IObjRef objRefToUpdate = objectRefsToUpdate[a];
Object objectToUpdate = objectsToUpdate[a];
CacheValueAndPrivilege cacheValueAndPrivilege = objRefToCacheValueMap.Get(objRefToUpdate);
if (cacheValueAndPrivilege == null)
{
// Current value in childCache is not in our interest here
continue;
}
IEntityMetaData metaData = ((IEntityMetaDataHolder)objectToUpdate).Get__EntityMetaData();
RelationMember[] relationMembers = metaData.RelationMembers;
if (relationMembers.Length == 0)
{
continue;
}
RootCacheValue cacheValue = cacheValueAndPrivilege.cacheValue;
IObjRefContainer vhc = (IObjRefContainer)objectToUpdate;
for (int relationIndex = relationMembers.Length; relationIndex-- > 0;)
{
if (ValueHolderState.INIT != vhc.Get__State(relationIndex))
{
continue;
}
// the object which has to be updated has initialized relations. So we have to ensure
// that these relations are in the RootCache at the time the target object will be updated.
// This is because initialized relations have to remain initialized after update but the relations
// may have been updated, too
BatchPendingRelations(cacheValue, relationMembers[relationIndex], cacheValue.GetRelation(relationIndex), node);
}
}
}
}
protected void ChangeFirstLevelCachesIntern(CacheDependencyNode node, ISet <IObjRef> intermediateDeletes)
{
List <CacheDependencyNode> childNodes = node.childNodes;
for (int a = childNodes.Count; a-- > 0;)
{
ChangeFirstLevelCachesIntern(childNodes[a], intermediateDeletes);
}
CacheChangeItem[] cacheChangeItems = node.cacheChangeItems;
if (cacheChangeItems == null)
{
return;
}
IRootCache parentCache = node.rootCache;
// RootCache readlock must be acquired before individual writelock to the child caches due to deadlock reasons
Lock parentCacheReadLock = parentCache.ReadLock;
parentCacheReadLock.Lock();
try
{
HashMap <IObjRef, CacheValueAndPrivilege> objRefToCacheValueMap = node.objRefToCacheValueMap;
for (int a = cacheChangeItems.Length; a-- > 0;)
{
CacheChangeItem cci = cacheChangeItems[a];
if (cci == null)
{
continue;
}
ChildCache childCache = node.directChildCaches[a];
IList <IObjRef> deletedObjRefs = cci.DeletedObjRefs;
IList <Object> objectsToUpdate = cci.UpdatedObjects;
IList <IObjRef> objRefsToUpdate = cci.UpdatedObjRefs;
IRootCache parent = ((IRootCache)childCache.Parent).CurrentRootCache;
Lock writeLock = childCache.WriteLock;
writeLock.Lock();
try
{
if (deletedObjRefs != null && deletedObjRefs.Count > 0)
{
childCache.Remove(deletedObjRefs);
}
foreach (IObjRef intermediateDeleteObjRef in intermediateDeletes)
{
childCache.Remove(intermediateDeleteObjRef);
}
if (objectsToUpdate != null && objectsToUpdate.Count > 0)
{
List <IObjRef> objRefsToForget = null;
for (int b = objectsToUpdate.Count; b-- > 0;)
{
Object objectInCache = objectsToUpdate[b];
IObjRef objRefInCache = objRefsToUpdate[b];
// Check if the objects still have their id. They may have lost them concurrently because this
// method here may be called from another thread (e.g. UI thread)
IEntityMetaData metaData = ((IEntityMetaDataHolder)objectInCache).Get__EntityMetaData();
Object id = metaData.IdMember.GetValue(objectInCache, false);
if (id == null)
{
continue;
}
CacheValueAndPrivilege cacheValueP = objRefToCacheValueMap.Get(objRefInCache);
if (cacheValueP == null)
{
if (objRefsToForget == null)
{
objRefsToForget = new List <IObjRef>();
}
objRefsToForget.Add(objRefInCache);
foreach (PrimitiveMember member in metaData.PrimitiveMembers)
{
member.SetValue(objectInCache, null);
}
RelationMember[] relationMembers = metaData.RelationMembers;
for (int relationIndex = relationMembers.Length; relationIndex-- > 0;)
{
((IValueHolderContainer)objectInCache).Set__Uninitialized(relationIndex, null);
}
continue;
}
if (!parentCache.ApplyValues(objectInCache, childCache, cacheValueP.privilege))
{
if (Log.WarnEnabled)
{
Log.Warn("No entry for object '" + objectInCache + "' found in second level cache");
}
}
}
if (objRefsToForget != null)
{
childCache.Remove(objRefsToForget);
}
}
}
finally
{
writeLock.Unlock();
}
}
}
finally
{
parentCacheReadLock.Unlock();
}
}