Results for java-class-tools

The Ruby2Java compiler inspects the *runtime* definition of classes to produce a normal-looking Java class. All metaprogrammed methods are reflected on the Java class, as are runtime modifications to those methods.

==== QDox - http://qdox.codehaus.org QDox is a high speed, small footprint parser for extracting class/interface/method definitions from Java source files complete with JavaDoc @tags. It is designed to be used by active code generators or documentation tools. QDox is a Java library. Therefore this RubyGem needs JRuby. ==== Quickstart Step 1: Load your Java sources. In JRuby (or +jirb+) write: require 'qdox' builder = QDox::JavaDocBuilder.new builder.add_source_tree(java.io.File.new(".") (Source: http://qdox.codehaus.org/usage.html) Step 2: Inspect the source model. src = builder.sources.first pkg = src.package puts pkg.name # e.g. "com.bla.foo" imports = src.imports # => e.g. ["java.util.List", "java.util.Set"] some_class = src.classes.first # => a QDox::Model::JavaClass # output the javadoc comment for the first method in some_class puts some_class.methods.first.comment (Source: http://qdox.codehaus.org/model.html) As you may have noticed, the Java packages used have been aliased to shorter Ruby Module names: The Java package com.thoughtworks.qdox is the Ruby module QDox etc. ==== In a Nutshell A custom built parser has been built using JFlex and BYacc/J. These have been chosen because of their proven performance and they require no external libraries at runtime. The parser skims the source files only looking for things of interest such as class/interface definitions, import statements, JavaDoc and member declarations. The parser ignores things such as actual method implementations to avoid overhead (while in method blocks, curly brace counting suffices). The end result of the parser is a very simple document model containing enough information to be useful. ==== License Apache License, Version 2.0 QDox was created by Joe Walnes, Aslak Hellesoy, Paul Hammant, Mike Williams, Mauro Talevi, Robert Scholte, and others. The RubyGem was created by Benjamin Bock.

Kwatable is a pretty tool to generate SQL and DTO from database table definition. Kwatable reads table definition written in YAML, and generates 'create table' SQL script for MySQL and PostgreSQL, or generates DTO class file for Java and Ruby. You can add your own eRuby template.

## A mirror API for Ruby In various [research][p1] [projects][p2] the advantages of having a [mirror API][p3] to separate reflection from a language implementation have been discussed, and "industry grade" implementations exist for [Java][p4] and [C#][p5]. This project aims at providing a number of specs and classes that document a mirror API for Ruby. The mirror implementation that is part of this project will use only those language facilities that are available across Ruby implementations. The specs, however, will also test behavior that cannot be provided in such a manner. The idea here is that in time, all implementations provide their own implementation of the mirror API, and all implementations collaborate on this one spec. Why do this, you ask? Because Ruby needs tools, and those tools need to be written in Ruby. If they are not, then people will be excluded from tinkering with their tools, thus impeding innovation. You only have to look at Emacs or Smalltalk to see what's possible when programmers can extend their tools, all tools, in a language they feel comfortable in. If we have a standard mirror API, all tools that are written **for** Ruby, **in** Ruby, can be shared across implementations, while at the same time allowing language implementers to use the facilities of their platform to provide optimal reflective capabilities without tying them to internals. [p1]: http://www.cs.virginia.edu/~lorenz/papers/icse03/icse2003.pdf "Pluggable Reflection: Decoupling Meta-Interface and Implementation" [p2]: http://bracha.org/newspeak-spec.pdf "Newspeak Programming Language Draft Specification, Version 0.06, pages 40 onward" [p3]: http://www.hpi.uni-potsdam.de/hirschfeld/events/past/media/100105_Bracha_2010_LinguisticReflectionViaMirrors_HPI.mp4 "Linguistic Reflection Via Mirrors" [p4]: http://bracha.org/mirrors.pdf "Mirrors: Design Principles for Meta-level Facilities of Object-Oriented Programming Languages" [p5]: http://oreilly.com/catalog/progcsharp/chapter/ch18.html "See esp. 18-3, highlighting how C# reflection works on assembly rather than VM objects"

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