From: SAKURAI Masashi <m.sakurai@...>
Date: 2005-10-29T12:59:44+09:00
Subject: Re: Java Reflection in Ruby

Hi,

> For part of an application I'm working on I am looking to use Java 
> Reflection to get method information from a .class file.

Using yajb (http://raa.ruby-lang.org/project/yajb/), you can use Java
Reflection API from ruby (attached code).

If you want to build a Class object from a byte array, you need to
implement the custom class loader in Java. 

Although yajb can make a subclass of any class in Java, I can not show
the implementation of java.lang.ClassLoader on yajb, because of a bug
of yajb. I'm going to fix it.


###### 

require 'yajb/jbridge'
include JavaBridge
jimport 'java.io.*'

klass = :String.jclass.getClass
puts klass.getName

puts "=====================(field)"
klass.getDeclaredFields.each {|i|
  puts i.getName
}

puts "=====================(method)"
klass.getDeclaredMethods.each {|i|
  puts i.getName
}

--
SAKURAI, Masashi (family, given)
m.sakurai@dream.com