Java Peristence API (JPA) for SimpleDB

Apparently, I forgot to mention one of my favorite open source projects on this blog, so here goes.

Want to migrate an existing java application to Amazon SimpleDB or just make working with SimpleDB as simple as possible? Check out the SimpleJPA project at http://code.google.com/p/simplejpa/. It's quite full featured at this point and works great. We are using it in production code now.

Super Small, Super Fast Cache - Kitty Cache

I just put another caching library up at http://code.google.com/p/kitty-cache/ for an in memory cache that supports max size and expiry. Very lightweight.

Gem Install Facebooker on Windows

If you run "gem install faceboooker", you'll get this:

C:\Users\treeder>gem install -f facebooker

Building native extensions. This could take a while...

ERROR: Error installing facebooker:

ERROR: Failed to build gem native extension.

c:/ruby/bin/ruby.exe extconf.rb install -f facebooker

creating Makefile

nmake

'nmake' is not recognized as an internal or external command,

operable program or batch file.

Gem files will remain installed in c:/ruby/lib/ruby/gems/1.8/gems/json-1.1.3 for

inspection.

Results logged to c:/ruby/lib/ruby/gems/1.8/gems/json-1.1.3/ext/json/ext/parser/

gem_make.out

To fix this:

1. gem install json -v 1.1.1 (only one that works on windows at time of posting, json_pure doesn't work with rails 2.3)
2. gem install facebooker --ignore-depencies