C# ObjectContainerBase.ClassMetadataForID方法代码示例

		public override IReflectClass ReflectClassFromElementsEntry(ObjectContainerBase container
			, ArrayInfo info, int classID)
		{
			if (classID == Const4.IgnoreId)
			{
				// TODO: Here is a low-frequency mistake, extremely unlikely.
				// If classID == 99999 by accident then we will get ignore.
				return null;
			}
			info.Primitive(false);
			if (UseJavaHandling())
			{
				if (classID < Const4.Primitive)
				{
					info.Primitive(true);
					classID -= Const4.Primitive;
				}
			}
			classID = -classID;
			ClassMetadata classMetadata = container.ClassMetadataForID(classID);
			if (classMetadata != null)
			{
				return ClassReflector(container.Reflector(), classMetadata, info.Primitive());
			}
			return null;
		}

		public virtual IReflectClass ReflectClassFromElementsEntry(ObjectContainerBase container
			, ArrayInfo info, int classID)
		{
			if (classID == 0)
			{
				return null;
			}
			ClassMetadata classMetadata = container.ClassMetadataForID(classID);
			if (classMetadata == null)
			{
				return null;
			}
			return ClassReflector(container.Reflector(), classMetadata, info.Primitive());
		}

		private ObjectHeader(ObjectContainerBase container, Db4objects.Db4o.Internal.ClassMetadata
			 classMetadata, IReadWriteBuffer reader)
		{
			int classID = reader.ReadInt();
			_marshallerFamily = ReadMarshallerFamily(reader, classID);
			classID = NormalizeID(classID);
			_classMetadata = (classMetadata != null ? classMetadata : container.ClassMetadataForID
				(classID));
			// This check has been added to cope with defragment in debug mode: SlotDefragment#setIdentity()
			// will trigger calling this constructor with a source db class metadata and a target db stream,
			// thus _classMetadata==null. There may be a better solution, since this call is just meant to
			// skip the object header.
			_headerAttributes = SlotFormat().ReadHeaderAttributes((ByteArrayBuffer)reader);
		}

		public void Read(ObjectContainerBase stream, ClassMetadata clazz, ByteArrayBuffer
			 reader)
		{
			clazz.SetAncestor(stream.ClassMetadataForID(reader.ReadInt()));
			//        if(clazz.callConstructor()){
			//            // The logic further down checks the ancestor YapClass, whether
			//            // or not it is allowed, not to call constructors. The ancestor
			//            // YapClass may possibly have not been loaded yet.
			//            clazz.createConstructor(true);
			//        }
			clazz.CheckType();
			ReadIndex(stream, clazz, reader);
			clazz._aspects = ReadAspects(stream, reader, clazz);
		}

		public static ClassMetadata ErasedFieldType(ObjectContainerBase container, IReflectClass
			 fieldType)
		{
			return fieldType.IsInterface() ? container.ClassMetadataForID(UntypedId) : container
				.ProduceClassMetadata(BaseType(fieldType));
		}