When looking at the callback pattern from a Scala perspective what we actually see is a cumbersome implementation of a 'function'.

如果从Scala的视角来看待这种回调模式，我们发现里面充斥的全都是某个“函数”的繁琐实现。

youdao

Hence, by implementing the observer callback pattern using web services, we provide a new mechanism for an asynchronous architecture over a synchronous infrastructure.

因此，如果使用Web服务来实现这种观察者回调方法，我们就可以在同步的基础结构中获得异步的体系。

youdao

In this case, however, you have already modeled the IOrderManagement and callback service specifications, so you can delete the two that are created by the pattern.

然而，在这种情况下，您已经对IOrderManagement和回调服务规范建模了，因此您可以删除模式所创建的这两个内容。

youdao

So, let's create a trait that implements this pattern, then use it to handle callback behavior.

所以，让我们创建一个trait来实现这个模式，然后用它来处理回调行为。

youdao

It is the Observer pattern on top of the base web services infrastructure that gives DEBA its callback capability.

在基本Web服务结构之上采用观察者模式，就为DEBA带来了回调能力。

youdao

It is the Observer pattern on top of the base web services infrastructure that gives DEBA its callback capability.

在基本Web服务结构之上采用观察者模式，就为DEBA带来了回调能力。

youdao