Eclipse中自动重构实现探索_MySQL
Eclipse
本文用eclipse的自动重构功能对一个程序实例进行重构，目的是探索Eclipse自动重构可以在多大程度上辅助重构这个过程。程序实例使用《Refactoring：Improving the Design of Existing Code》一书中的例子。
Eclipse的自动重构功能能够很好地支持各种程序元素的重命名，并自动更新相关的引用。Eclipse能够支持方法、字段在类之间移动，并自动更新引用。Eclipse较好地支持内联字段、函数的更新替换。Eclipse较好地支持抽取方法、变量等程序元素。
重构的过程是一个不断尝试和探索的过程。Eclipse的重构支持撤销和重做，并且能够预览重构结果，这些是很实用的功能。
Eclipse的重命名、抽取方法、移动、内联功能、更改方法特征符等代码结构级别的重构方法，是比较成熟同时也值得使用的功能。至于设计结构上的重构，eclipse还不能很好地支持。但是作者相信，自动重构的理念应该是"工具辅助下的重构工作"，人仍然承担大部分重构工作。
一、预备工作
本文使用《Refactoring：Improving the Design of Existing Code》一书第一章的例子。重构前的代码及每一步重构后的代码见附件。读者最好配合《Refactoring：Improving the Design of Existing Code》一书阅读本文。
Eclipse使用如下版本：
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