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Introduction to JRuby
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bostonrb
July 17, 2012
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Introduction to JRuby
bostonrb
July 17, 2012
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Transcript
“Intro” to JRuby Jay McGaffigan
Me, Myself, and I • Developer at Decision Resources
Group • Twi@er: @hooligan495
It’s ruby • Installs with RVM • Download
a distribuIon • Even on Windows
Rails • Yep…
Some things are different
Not a Unified Gemset • ImageMagick vs Rmagick
• Cextensions aren’t fully supported (never will be considered ProducIon) • Might have to write a java extension
Deploying • It’s different but not “new”
Java integraIon • Calling Java Libraries •
Give Java a Ruby syntax
Things to be aware of • Startup •
JVM tuning and warmup • Forking processes • Threading
Why Did we Choose JRuby • Ruby in the
“enterprise” • Selling a product • Fit into customers “labs”
Resources • h@p://www.jruby.org – Ge_ng started – Wiki
– IRC Tom Enebo, Charles Nu@er, Nick Sieger, and others whose names I forget are always up for answering a quesIon
Always looking for help • Grab a bug and
work to fix it • Grab a gem (rcov) and ensure Jruby compaIbility