Object-Oriented Design Heuristics 笔记(1)

    我是从csdn的一个Blog里知道这本书的，下来一看，很奇怪的书名，很通俗的文风。今天读了Chapter1-2，觉得Arthur J. Riel他老人家说得很有道理，除此之外没有再多的感想了－－可能是我缺乏OOD经验吧－－只好把Chapter2的Summary摘录出来，聊以为笔记。

Summary of Heuristics

Heuristic 2.1 All data should be hidden within its class.

Heuristic 2.2 Users of a class must be dependent on its public interface, but a class should not be dependent on its users.

Heuristic 2.3 Minimize the number of messages in the protocol of a class.

Heuristic 2.4 Implement a minimal public interface that all classes understand [e.g., operations such as copy (deep versus shallow), equality testing, pretty printing, parsing from an ASCII description, etc.].

Heuristic 2.5 Do not put implementation details such as common-code private functions into the public interface of a class.

Heuristic 2.6 Do not clutter the public interface of a class with things that users of that class are not able to use or are not interested in using.

Heuristic 2.7 Classes should only exhibit nil or export coupling with other classes, that is, a class should only use operations in the public interface of another class or have nothing to do with that class.

Heuristic 2.8 A class should capture one and only one key abstraction.

Heuristic 2.9 Keep related data and behavior in one place.

Heuristic 2.10 Spin off nonrelated information into another class (i.e., noncommunicating behavior).

Heuristic 2.11 Be sure the abstractions that you model are classes and not simply the roles objects play.

    既然没有什么好说的，就不要说了，还不如静下心来搞些设计，在实践中体会OOD的精髓...... Practice make perfect!