WSDL描述了输入输出变量的数据类型、每一个服务的操作集的名称、客户调用服务必须遵守的格式等等。
WSDL describes the data types of the input-output variables, the name of the set of operations in each service, the format that the client must follow to invoke a service, and so on.
静态搜索集是一种抽象数据类型,包含的操作包括initialize、insert和retrieve。
Static search set is an abstract data type with the operations initialize, insert, and retrieve.
因此,WS-BPEL 要求,在任何给定时间,对于每个端口类型、操作、相关集和伙伴链接,每个流程实例只能有一个请求-响应操作。
Therefore, WS-BPEL claims that only one request-response operation per process instance may be active at any given time for each port type, operation, correlation set, and partner link.
We're going to build up this taxonomy if you like, but the reason it's relevant is, associated with each one of those types is a set of operators that expect certain types of input in order to do their job.
我们将会建立这种分类,但是这相关的原因是,对于每种类型都有,和之对应的一个操作集,这个操作机对一些输入,做出规定的操作。
Sometimes the functions -- sometimes a function can be used on multiple data types, plus, for example, we saw could add strings, or could add ints, but each one of those data types has associated with it a set of functions that are geared to handling them.
比如说,我们可以对string类型,进行add操作,也可以对int类型进行这个操作,但是这些数据类型中的每一种,都与适合于操作它们的,方法集相关联,我们想对我们创建的数据,类型做同样的事情。
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