protected void EnsureInitializedRelationsIntern3(Object obj, PrefetchPath[] cachePaths, ILinkedMap <Type, PrefetchPath[]> entityTypeToPrefetchPaths, IMap <ICacheIntern, IISet <IObjRef> > cacheToOrisToLoad, IMap <ICacheIntern, IMap <IObjRelation, bool> > cacheToOrelsToLoad, IMap <ICacheIntern, IISet <IObjRef> > cacheToOrisLoadedHistory, IMap <ICacheIntern, IISet <IObjRelation> > cacheToOrelsLoadedHistory, AlreadyHandledSet alreadyHandledSet, IList <PrefetchCommand> cascadeLoadItems) { if (obj == null) { return; } if (!alreadyHandledSet.PutIfNotExists(obj, cachePaths, true)) { return; } if (obj is IndirectValueHolderRef) { IndirectValueHolderRef vhk = (IndirectValueHolderRef)obj; HandleValueHolder(vhk, cachePaths, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, cascadeLoadItems); // Do nothing because this is only to prefetch RootCache entries return; } else if (obj is DirectValueHolderRef) { DirectValueHolderRef vhk = (DirectValueHolderRef)obj; if (!HandleValueHolder(vhk, cachePaths, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, cascadeLoadItems)) { return; } // force valueholder init. at this point we know that all related items are already in the cache. there will be no roundtrip // to the server if (vhk.Member == null) { obj = vhk.Vhc; } else { obj = vhk.Member.GetValue(vhk.Vhc); } } if (obj == null) { // this check is necessary because even if we create only instances of DirectValueHolderRef in cases where there is a not initalized relation // even then it might be possible that a concurrent thread initializes the valueholder to null (e.g. an empty to-one relation) return; } if ((cachePaths == null || cachePaths.Length == 0) && entityTypeToPrefetchPaths == null) { return; } if (obj is IEnumerable) { var items = new List <Object>(); foreach (Object item in (IEnumerable)obj) { if (item == null) { continue; } items.Add(item); } foreach (Object item in items) { EnsureInitializedRelationsIntern3(item, cachePaths, entityTypeToPrefetchPaths, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, cascadeLoadItems); } return; } IEntityMetaData metaData = ((IEntityMetaDataHolder)obj).Get__EntityMetaData(); if (cachePaths == null || cachePaths.Length == 0) { if (entityTypeToPrefetchPaths != null) { cachePaths = entityTypeToPrefetchPaths.Get(metaData.EntityType); } if (cachePaths == null || cachePaths.Length == 0) { return; } } RelationMember[] relationMembers = metaData.RelationMembers; if (relationMembers.Length == 0) { return; } IValueHolderContainer vhc = (IValueHolderContainer)obj; for (int a = cachePaths.Length; a-- > 0;) { PrefetchPath path = cachePaths[a]; int relationIndex = path.memberIndex; RelationMember member = relationMembers[relationIndex]; if (ValueHolderState.INIT != vhc.Get__State(relationIndex)) { DirectValueHolderRef vhk = new DirectValueHolderRef(vhc, member); EnsureInitializedRelationsIntern3(vhk, path.children, entityTypeToPrefetchPaths, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, cascadeLoadItems); continue; } Object memberValue = member.GetValue(obj); if (memberValue == null) { continue; } EnsureInitializedRelationsIntern3(memberValue, path.children, entityTypeToPrefetchPaths, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, cascadeLoadItems); } }
protected void ProcessPendingOrelsAndObjRefs(ILinkedMap <Type, PrefetchPath[]> entityTypeToPrefetchPath, AlreadyHandledSet alreadyHandledSet, IdentityLinkedMap <ICacheIntern, IISet <IObjRef> > cacheToOrisLoadedHistory, IdentityLinkedMap <ICacheIntern, IISet <IObjRelation> > cacheToOrelsLoadedHistory, IdentityLinkedMap <ICacheIntern, IISet <IObjRef> > cacheToOrisToLoad, IdentityLinkedMap <ICacheIntern, IMap <IObjRelation, bool> > cacheToOrelsToLoad, List <PrefetchCommand> pendingPrefetchCommands, List <Object> hardRefList) { // all relation members where at least one instance of the owning entity type needs a prefetch on this member in the immediate next step MergePrefetchPathsCache mergePrefetchPathsCache = new MergePrefetchPathsCache(EntityMetaDataProvider); IdentityLinkedSet <Member> prioMembers = PrioMembersProvider.GetPrioMembers(entityTypeToPrefetchPath, pendingPrefetchCommands, mergePrefetchPathsCache); LoadAndAddOrels(cacheToOrelsToLoad, hardRefList, cacheToOrelsLoadedHistory, cacheToOrisToLoad, prioMembers); LoadAndAddOris(cacheToOrisToLoad, hardRefList, cacheToOrisLoadedHistory); while (pendingPrefetchCommands.Count > 0) { PrefetchCommand[] currentPrefetchCommands = pendingPrefetchCommands.ToArray(); // Clear the items to be ready for cascaded items in new batch recursion step pendingPrefetchCommands.Clear(); if (prioMembers.Count > 0) { for (int a = 0, size = currentPrefetchCommands.Length; a < size; a++) { PrefetchCommand prefetchCommand = currentPrefetchCommands[a]; DirectValueHolderRef valueHolder = prefetchCommand.valueHolder; if (!prioMembers.Contains(valueHolder.Member)) { currentPrefetchCommands[a] = null; pendingPrefetchCommands.Add(prefetchCommand); } } } GuiThreadHelper.InvokeInGuiAndWait(delegate() { ICacheModification cacheModification = CacheModification; ValueHolderContainerMixin valueHolderContainerMixin = ValueHolderContainerMixin; bool oldActive = cacheModification.Active; if (!oldActive) { cacheModification.Active = true; } try { foreach (PrefetchCommand prefetchCommand in currentPrefetchCommands) { if (prefetchCommand == null) { continue; } DirectValueHolderRef valueHolder = prefetchCommand.valueHolder; PrefetchPath[] cachePaths = prefetchCommand.prefetchPaths; RelationMember member = valueHolder.Member; // Merge the root prefetch path with the relative prefetch path cachePaths = mergePrefetchPathsCache.MergePrefetchPaths(member.ElementType, cachePaths, entityTypeToPrefetchPath); IObjRefContainer vhc = valueHolder.Vhc; ICacheIntern targetCache; bool doSetValue = false; if (valueHolder is IndirectValueHolderRef) { IndirectValueHolderRef valueHolderKey = (IndirectValueHolderRef)valueHolder; targetCache = valueHolderKey.RootCache; } else { targetCache = ((IValueHolderContainer)vhc).__TargetCache; doSetValue = true; } int relationIndex = vhc.Get__EntityMetaData().GetIndexByRelation(member); IObjRef[] objRefs = vhc.Get__ObjRefs(relationIndex); Object obj = valueHolderContainerMixin.GetValue(vhc, relationIndex, member, targetCache, objRefs, CacheDirective.FailEarly); if (doSetValue && obj != null) { member.SetValue(vhc, obj); } EnsureInitializedRelationsIntern3(obj, cachePaths, entityTypeToPrefetchPath, cacheToOrisToLoad, cacheToOrelsToLoad, cacheToOrisLoadedHistory, cacheToOrelsLoadedHistory, alreadyHandledSet, pendingPrefetchCommands); } } finally { if (!oldActive) { cacheModification.Active = false; } } }); // Remove all oris which have already been tried to load before if (cacheToOrisToLoad.Count == 0 && cacheToOrelsToLoad.Count == 0 && pendingPrefetchCommands.Count == 0) { return; } prioMembers = PrioMembersProvider.GetPrioMembers(entityTypeToPrefetchPath, pendingPrefetchCommands, mergePrefetchPathsCache); LoadAndAddOrels(cacheToOrelsToLoad, hardRefList, cacheToOrelsLoadedHistory, cacheToOrisToLoad, prioMembers); LoadAndAddOris(cacheToOrisToLoad, hardRefList, cacheToOrisLoadedHistory); } }