两个业务对象映射，一个调用该动态关系以执行对 id 属性的转换，另一个业务图则调用业务对象映射。

Two business object maps, one that invokes the dynamic relationship to perform a transformation on the id property and another business graph map that calls the business object map.

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动态绑定方法的调用，然而，这将涉及到继承类图。

A dynamically bound method call, however, reaches "outward" into the inheritance hierarchy.

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