关键的挑战是在大型的、高可用性的SOA实现中有效的引用及配置数据发布。
A key challenge is effective reference and configuration data distribution in large and highly available SOA implementations.
虽然这种解决方案总的来说还算有效，但在循环引用方面却存在一些盲点。
Although this solution is generally very efficient, it has a blind spot when it comes to circular (or cyclic) references.
此外，对于对象引用的数据成员，引用的对象必须是有效不可变的。
Further, for data members that are object references, the referred-to objects must be effectively immutable.
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