Re:Good Tools Are Invisible
by brabel on Saturday July 11, 2026 @05:51AM
(#48870455)
The only case I can imagine is when I rename a Java interface and want all implementations to be also renamed accordingly. I can do that in 1 second in IntelliJ. With dired on emacs that would not be possible at all and I would need a tool that can find all implementations first: that requires a LSP on emacs, and then from a xref buffer, not sure how I could rename all classes and their files at once. Probably would need to be manually done? Anyone knows how to do it in emacs with one command?
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It would be the same as in IntelliJ. As long as you have the Java LSP active, you issue the `lsp-rename` action: https://emacs-lsp.github.io/lsp-java/#lsp-mode-commands
This works exactly the same for all languages whose LSP support this action, which is most of them.
No! Rename in JSP is not intelligent enough to match an interface name with its implementation names and decide whether to also rename those!
What do you mean by "implementation names"? I assumed you meant changing the "implements X", which should be easy for an LSP.
Java implementations sometimes take part of the name from the interface they implement, for example, `FooRunner` probably implements `Runner`.
My example was that I renamed `Runner` to whatever, `Executor`, and IntelliJ will ask me if I want to rename also implementations (in this case, it would show `FooRunner` -> `FooExecutor`).