A setofmapping rules define how the original inbound message is to be broken apart into constituent pieces.
映射规则集定义原始入站消息如何划分为多个部分。
2
Create another module to declare a setofmapping attributes for the new elements that point to the generic element types that they specialize.
创建另外一个模块，声明新元素的一组映射属性指向它们专门化的类属元素类型。
3
There is no reason that vendors cannot adopt a similar standard setofmapping annotations as part of an EJB 2.x style deployment descriptor to simplify the mapping step.