Exemplo n.º 1
0
        protected void ScanForInitializedObjectsIntern(Object obj, bool isDeepMerge, IList <Object> objects, IMap <Type, IList <Object> > typeToObjectsToMerge,
                                                       ISet <Object> alreadyHandledObjectsSet, IList <IObjRef> objRefs, IList <ValueHolderRef> valueHolderKeys)
        {
            if (obj == null || !alreadyHandledObjectsSet.Add(obj))
            {
                return;
            }
            if (obj is IList)
            {
                IList list = (IList)obj;
                for (int a = 0, size = list.Count; a < size; a++)
                {
                    ScanForInitializedObjectsIntern(list[a], isDeepMerge, objects, typeToObjectsToMerge, alreadyHandledObjectsSet, objRefs, valueHolderKeys);
                }
                return;
            }
            else if (obj.GetType().IsArray)
            {
                Array array = (Array)obj;
                for (int a = array.Length; a-- > 0;)
                {
                    Object item = array.GetValue(a);
                    ScanForInitializedObjectsIntern(item, isDeepMerge, objects, typeToObjectsToMerge, alreadyHandledObjectsSet, objRefs, valueHolderKeys);
                }
                return;
            }
            else if (obj is IEnumerable && !(obj is String))
            {
                foreach (Object item in (IEnumerable)obj)
                {
                    ScanForInitializedObjectsIntern(item, isDeepMerge, objects, typeToObjectsToMerge, alreadyHandledObjectsSet, objRefs, valueHolderKeys);
                }
                return;
            }
            IEntityMetaData metaData = EntityMetaDataProvider.GetMetaData(obj.GetType(), true);

            if (metaData == null)
            {
                return;
            }
            IObjRef objRef = null;
            Object  id     = metaData.IdMember.GetValue(obj, false);

            if (id != null)
            {
                objRef = ObjRefFactory.CreateObjRef(metaData.EntityType, ObjRef.PRIMARY_KEY_INDEX, id, null);
                objRef.GetType().GetFields(BindingFlags.Instance | BindingFlags.NonPublic);
            }
            if (!(obj is IDataObject) || ((IDataObject)obj).HasPendingChanges)
            {
                if (typeToObjectsToMerge != null)
                {
                    IList <Object> objectsToMerge = typeToObjectsToMerge.Get(metaData.EntityType);
                    if (objectsToMerge == null)
                    {
                        objectsToMerge = new List <Object>();
                        typeToObjectsToMerge.Put(metaData.EntityType, objectsToMerge);
                    }
                    objectsToMerge.Add(obj);
                }
                objects.Add(obj);
                objRefs.Add(objRef);
            }
            if (!isDeepMerge)
            {
                return;
            }
            RelationMember[] relationMembers = metaData.RelationMembers;
            if (relationMembers.Length == 0)
            {
                return;
            }
            IObjRefContainer vhc = (IObjRefContainer)obj;

            for (int relationIndex = relationMembers.Length; relationIndex-- > 0;)
            {
                if (ValueHolderState.INIT != vhc.Get__State(relationIndex))
                {
                    continue;
                }
                RelationMember relationMember = relationMembers[relationIndex];
                Object         item           = relationMember.GetValue(obj);
                if (objRef != null && item != null)
                {
                    ValueHolderRef vhk = new ValueHolderRef(objRef, relationMember, relationIndex);
                    valueHolderKeys.Add(vhk);
                }
                ScanForInitializedObjectsIntern(item, isDeepMerge, objects, typeToObjectsToMerge, alreadyHandledObjectsSet, objRefs, valueHolderKeys);
            }
        }
Exemplo n.º 2
0
        public virtual ICUDResult MergeDeep(Object obj, MergeHandle handle)
        {
            ICache cache = handle.Cache;

            if (cache == null && CacheFactory != null)
            {
                cache        = CacheFactory.Create(CacheFactoryDirective.NoDCE, false, false, "MergeController.ORIGINAL");
                handle.Cache = cache;
            }
            IMap <Type, IList <Object> > typeToObjectsToMerge = null;

            Type[] entityPersistOrder = EntityMetaDataProvider.GetEntityPersistOrder();
            if (entityPersistOrder != null && entityPersistOrder.Length > 0)
            {
                typeToObjectsToMerge = new HashMap <Type, IList <Object> >();
            }
            List <IObjRef>        objRefs                = new List <IObjRef>();
            List <ValueHolderRef> valueHolderKeys        = new List <ValueHolderRef>();
            IList <Object>        objectsToMerge         = ScanForInitializedObjects(obj, handle.IsDeepMerge, typeToObjectsToMerge, objRefs, valueHolderKeys);
            IList <Object>        eagerlyLoadedOriginals = null;

            // Load all requested object originals in one roundtrip
            if (objRefs.Count > 0)
            {
                eagerlyLoadedOriginals = cache.GetObjects(objRefs, CacheDirective.ReturnMisses);
                for (int a = eagerlyLoadedOriginals.Count; a-- > 0;)
                {
                    IObjRef existingOri = objRefs[a];
                    if (eagerlyLoadedOriginals[a] == null && existingOri != null && existingOri.Id != null)
                    {
                        // Cache miss for an entity we want to merge. This is an OptimisticLock-State
                        throw new OptimisticLockException(null, null, existingOri);
                    }
                }
                List <IObjRef> objRefsOfVhks = new List <IObjRef>(valueHolderKeys.Count);
                for (int a = 0, size = valueHolderKeys.Count; a < size; a++)
                {
                    objRefsOfVhks.Add(valueHolderKeys[a].ObjRef);
                }
                IList <Object> objectsOfVhks = cache.GetObjects(objRefsOfVhks, CacheDirective.FailEarly | CacheDirective.ReturnMisses);
                for (int a = valueHolderKeys.Count; a-- > 0;)
                {
                    IObjRefContainer objectOfVhk = (IObjRefContainer)objectsOfVhks[a];
                    if (objectOfVhk == null)
                    {
                        continue;
                    }
                    ValueHolderRef valueHolderRef = valueHolderKeys[a];
                    if (ValueHolderState.INIT != objectOfVhk.Get__State(valueHolderRef.RelationIndex))
                    {
                        DirectValueHolderRef vhcKey = new DirectValueHolderRef(objectOfVhk, valueHolderRef.Member);
                        handle.PendingValueHolders.Add(vhcKey);
                    }
                }
            }
            if (typeToObjectsToMerge != null)
            {
                foreach (Type orderedEntityType in entityPersistOrder)
                {
                    IList <Object> objectsToMergeOfOrderedType = typeToObjectsToMerge.Remove(orderedEntityType);
                    if (objectsToMergeOfOrderedType == null)
                    {
                        continue;
                    }
                    MergeDeepStart(objectsToMergeOfOrderedType, handle);
                }
                foreach (Entry <Type, IList <Object> > entry in typeToObjectsToMerge)
                {
                    IList <Object> objectsToMergeOfUnorderedType = entry.Value;
                    MergeDeepStart(objectsToMergeOfUnorderedType, handle);
                }
            }
            else if (objectsToMerge.Count > 0)
            {
                MergeDeepStart(objectsToMerge, handle);
            }
            return(CUDResultHelper.CreateCUDResult(handle));
        }