Ejemplo n.º 1
0
        internal IPersistent LoadStub(int oid, IPersistent obj, Type cls)
        {
            long pos = GetPos(oid);
            if ((pos & (dbFreeHandleFlag | dbPageObjectFlag)) != 0)
            {
                throw new StorageError(StorageError.DELETED_OBJECT);
            }

            byte[] body = pool.Get(pos & ~ dbFlagsMask);
            ClassDescriptor desc;
            int typeOid = ObjectHeader.GetType(body, 0);
            if (typeOid == 0)
            {
                //UPGRADE_TODO: Method 'java.util.HashMap.get' was converted to 'System.Collections.Hashtable.Item' which has a different behavior.
                desc = (ClassDescriptor) classDescMap[cls];
            }
            else
            {
                desc = FindClassDescriptor(typeOid);
            }

            if (obj == null)
            {
                obj = (IPersistent) desc.NewInstance();
                objectCache.Put(oid, obj);
            }
            obj.AssignOid(this, oid, false);
            if (obj is FastSerializable)
            {
                ((FastSerializable) obj).Unpack(body, ObjectHeader.Sizeof, encoding);
            }
            else
            {
                try
                {
                    UnpackObject(obj, desc, obj.RecursiveLoading, body, ObjectHeader.Sizeof, obj);
                }
                catch (System.Exception x)
                {
                    throw new StorageError(StorageError.ACCESS_VIOLATION, x);
                }
            }
            obj.OnLoad();
            return obj;
        }