Comments on: Roman Numerals, in your Java

By: miau

miau — Sun, 04 Jan 2009 10:11:06 +0000

this is awesome. although I wish we could get rid of the backward compatibility of having to still support roman numbers.

By: McDowell

McDowell — Tue, 09 Dec 2008 19:36:39 +0000

If you want to get your hooks into the Eclipse compiler via its annotation processor, start by creating a new plugin. -Contribute to the "org.eclipse.jdt.apt.core.annotationProcessorFactory" extension point. -In the "javax.annotations.processor.Processor" implementation, cast the ProcessingEnvironment to "org.eclipse.jdt.apt.pluggable.core.dispatch.IdeBuildProcessingEnvImpl" -After that, you're on your own!

By: Jewelry With Meaning: Roman Numeral Jewelry - Jewelry

Jewelry With Meaning: Roman Numeral Jewelry - Jewelry — Fri, 05 Dec 2008 07:16:52 +0000

[...] For.example » Blog Archive » Roman Numerals, in your Java [...]

By: Java math with roman numbers… « GHads mind

Java math with roman numbers… « GHads mind — Fri, 07 Nov 2008 08:31:29 +0000

[...] just found this page: For.example [...]

By: akuhn

akuhn — Thu, 06 Nov 2008 21:58:40 +0000

@raveman the hack uses internal classes of Sun’s java compiler (see also Walter Harley’s comment). By default eclipse uses its own compiler, you have to change that in the project settings (or use an ant script to compile the code, as I do).

By: Stephane Grenier

Stephane Grenier — Thu, 06 Nov 2008 16:52:07 +0000

Interesting idea. Of course I don’t know that you’d program this way, but it sure brings up some interesting points on how to create your own custom pre-processor.

And I for sure didn’t realize how simple it is to implement if you know how to do it! Thanks.

By: rogersm.net » Blog Archive » You can hook code to the Java compiler

rogersm.net » Blog Archive » You can hook code to the Java compiler — Thu, 06 Nov 2008 15:58:29 +0000

[...] had no idea you can plug into javac to do nifty things like adding roman numerals to your java [...]

By: raveman

raveman — Thu, 06 Nov 2008 10:59:24 +0000

is there any way to make it work in eclipse?

By: Walter Harley

Walter Harley — Wed, 05 Nov 2008 23:01:50 +0000

“bending JSR 269 beyond its limits” is accurate… one of the core precepts of JSR 269 is that it disallows modifying existing classes. Your code is bound to the implementation details of Sun’s javac, and will not work on other compilers (such as Eclipse’s).

Nothing wrong with that, just thought I’d point out that this isn’t a JSR 269 hack, it’s a Sun javac hack. But a fun one!