Eclipse 类型层次结构并不总是有效
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Eclipse type hierarchy not always working
提问by Slimer
When I want to see implementation of some interface through F4(type hierarchy) or ctrl+t(quick hierarchy) or implementation of a method, I can't see it! Problem is, that it works in 90%, but I have few cases when interface and implementation are in same package and eclipse doesn't recognize it via type hierarchy. Any suggestions? Got Eclipse Indigo SR2.
当我想通过F4（类型层次结构）或ctrl+ t（快速层次结构）或方法的实现来查看某个接口的实现时，我看不到它！问题是，它可以在 90% 的情况下工作，但是当接口和实现在同一个包中并且 eclipse 无法通过类型层次结构识别它时，我很少遇到这种情况。有什么建议？得到 Eclipse Indigo SR2。
回答by MattWallace
I had this same problem and fixed it by deleting the Eclipse index cache files located in .metadata/.plugins/org.eclipse.jdt.core. Delete all .index files and savedIndexNames.txt. Do this while Eclipse is not running and then restart. This fixed the issue for me.
我遇到了同样的问题，并通过删除位于 .metadata/.plugins/org.eclipse.jdt.core 中的 Eclipse 索引缓存文件来修复它。删除所有 .index 文件和 savedIndexNames.txt。在 Eclipse 未运行时执行此操作，然后重新启动。这为我解决了这个问题。
回答by Pavel Coufal
Use Eclipse clean mode for deleting caches, look here: How to run eclipse in clean mode? and what happens if we do so?
使用 Eclipse 清洁模式删除缓存，请看这里：如何在清洁模式下运行 eclipse？如果我们这样做会发生什么？
Sometimes is good to use clean mode to prevent these types of problems.
有时使用清洁模式来防止这些类型的问题是很好的。
回答by zawdd
I also had this problem and fixed it. The reason of this problem is that when the eclipse is running, I reinstall the JDK from 1.8 to 1.6. So I close eclipse, install JDK 1.8 again, then it's OK! May it will be helpful for others.
我也遇到了这个问题并修复了它。出现这个问题的原因是在eclipse运行的时候，我把JDK从1.8重新安装到了1.6。于是我关闭eclipse，重新安装JDK 1.8，就OK了！愿它对其他人有帮助。
