序列化代码示例中的无限循环

Question

查看以下代码 此处。
它是关于在 wcf 中序列化时保留数据契约（对象模型、对象图、域模型）中的循环引用。

class ReferencePreservingDataContractSerializerOperationBehavior
      :DataContractSerializerOperationBehavior
    {
        public ReferencePreservingDataContractSerializerOperationBehavior(
          OperationDescription operationDescription)
          : base(operationDescription) { }

        public override XmlObjectSerializer CreateSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }
 
        private static XmlObjectSerializer CreateDataContractSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }
 
        public override XmlObjectSerializer CreateSerializer(
          Type type, XmlDictionaryString name, XmlDictionaryString ns,
          IList<Type> knownTypes)
        {
            return new DataContractSerializer(type, name, ns, knownTypes,
                0x7FFF /*maxItemsInObjectGraph*/,
                false/*ignoreExtensionDataObject*/,
                true/*preserveObjectReferences*/,
                null/*dataContractSurrogate*/);
        }
    }

CreateDataContractSerializer 不是会生成无限循环 (stackoverflow) - 因此前面的 CreateSerializer 方法也会生成无限循环吗？

private static XmlObjectSerializer CreateDataContractSerializer(
          Type type, string name, string ns, IList<Type> knownTypes)
        {
            return CreateDataContractSerializer(type, name, ns, knownTypes);
        }

现在也许这些方法都没有被使用？我在这里缺少什么？

Answer 1

看起来确实如此。它有效的事实表明当前仅调用了最后一个重载。由于涉及不同的参数，也许最好放弃静态方法（这没有帮助）：

public override XmlObjectSerializer CreateSerializer(
  Type type, string name, string ns, IList<Type> knownTypes)
{
    return new DataContractSerializer(type, name, ns, knownTypes,
        0x7FFF /*maxItemsInObjectGraph*/,
        false/*ignoreExtensionDataObject*/,
        true/*preserveObjectReferences*/,
        null/*dataContractSurrogate*/);
}

public override XmlObjectSerializer CreateSerializer(
  Type type, XmlDictionaryString name, XmlDictionaryString ns,
  IList<Type> knownTypes)
{
    return new DataContractSerializer(type, name, ns, knownTypes,
        0x7FFF /*maxItemsInObjectGraph*/,
        false/*ignoreExtensionDataObject*/,
        true/*preserveObjectReferences*/,
        null/*dataContractSurrogate*/);
}