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在 ADF 中，为什么我们需要在绑定和数据控件之间有一个可执行文件。假设我有一个由 datacontrol(DC) 公开的分层数据模型。为什么我们不能直接与 DC 进行分层绑定，而不是通过一个名为 的额外层executable？
executable
executable contains the declarations for iterators, variables, etc and bindings refers to those declarations in more than one binding. This is the modularization designed by Oracle. Just a design approach.