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Posted by Scott Delap on Jun 09, 2007
JRuby 1.0 has been released. From committer Ola Bini's blog:...JRuby 1.0 is a major milestone for our project. Our main goal for 1.0 has been Ruby compatibility. We feel this goal has been reached. When we see companies like ThoughtWorks offering commercial support; we know this goal has been reached...It is important to notice that JRuby 1.0 is not the end all of Ruby interpreters. It’s not perfect. This is just the beginning. We now have a very good base to work from. This is were the real work begins. Join us. It will be a fun ride, and JRuby will just get better!
The release marks 9 months since commiters Charles Nutter and Thomas Enebo were hired by Sun. In the time since commiter Ola Bini has also been hired to work on JRuby development by Thoughtworks.
The release is being termed as "Ruby compatible" with all known JRuby bugs causing incompatibilities with Matz's Ruby (MRI) resolved. Applications should "just work" out of the box. Charles Nutter has detailed the post 1.0 development course of JRuby on his blog. In summary:
Java Integration
Today libraries can be called, interfaces implemented, and classes extended. Edge cases exist however. A redesigned integration API is targeted for 1.1.
Ruby 2.0 and Rubinius
The goal is to support Ruby 2.0 and Rubinius byte code execution soon.
Nutter also reaches out to the community. JRuby is a community project sustained by community involvement. He specifically mentions the RubySpec initiative:
..RubySpec is an effort to build a community-driven specification of Ruby that all users and implementers can freely reference. It is linked from the RubyDoc site and is fast becoming a standard way for the community to record language and library behaviors. I believe this is the best and fastest way for us to form a complete specification of Ruby's behavior...and I believe such a specification is becoming extremely important, what with there now being 5-10 different implementations of Ruby, all guessing at what "correct" is...
On a related note ActiveRecord-JDBC 0.4 has been released to coincide with JRuby 1.0. ActiveRecord-JDBC is a database adapter for Rails’ ActiveRecord component that can be used with JRuby. It allows use of virtually any JDBC-compliant database with your JRuby on Rails application. Version 0.4 adds:
Sun's commitment to Ruby has not just consisted of runtime for the JVM. The Netbeans IDE has been receiving a significant injection of Ruby support the last 6 months from Sun's Tor Norbye. This week he has added Find Usages and Refactoring support:
...Let's say that I want to rename the @comments field in my Rails application controller. I right click on it, choose a new name and hit OK. I then click "Preview", and in the bottom window I get a list of refactoring operations, along with diffs for the currently selected item. I can (and should!) walk through the changes with the Up/Down arrows, and I can unselect any changes that I don't like before I click the Refactor button to apply the changes...
Such features are in the very latest development buillds of Netbeans which can be found in a Ruby IDE form at nbextras.org. More detailed installation instructions can be found on the Netbeans wiki.
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