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= rufus-tokyo
ruby-ffi based interface to Tokyo Cabinet.
The 'abstract' and the 'table' API are covered for now.
== installation
sudo gem install ffi rufus-tokyo
(see after 'usage' for how to install Tokyo Cabinet if required)
== usage
=== Abstract API
http://tokyocabinet.sourceforge.net/spex-en.html#tcadbapi
to create a hash (file named 'data.tch')
require 'rubygems'
require 'rufus/tokyo'
db = Rufus::Tokyo::Cabinet.new('data.tch')
db['nada'] = 'surf'
p db['nada'] # => 'surf'
p db['lost'] # => nil
5000.times { |i| db[i.to_s] = "x" }
p db.inject { |r, (k, v)| k } # => 4999
db.close
=== Table API
http://tokyocabinet.sourceforge.net/spex-en.html#tctdbapi
require 'rubygems'
require 'rufus/tokyo/cabinet/table'
t = Rufus::Tokyo::Table.new('table.tdb', :create, :write)
t['pk0'] = { 'name' => 'alfred', 'age' => '22' }
t['pk1'] = { 'name' => 'bob', 'age' => '18' }
t['pk2'] = { 'name' => 'charly', 'age' => '45' }
t['pk3'] = { 'name' => 'doug', 'age' => '77' }
t['pk4'] = { 'name' => 'ephrem', 'age' => '32' }
p t.query { |q|
q.add_condition 'age', :numge, '32'
q.order_by 'age'
}
# => [ {"name"=>"ephrem", :pk=>"pk4", "age"=>"32"},
# {"name"=>"charly", :pk=>"pk2", "age"=>"45"} ]
t.close
more in the rdoc
http://rufus.rubyforge.org/rufus-tokyo/
http://rufus.rubyforge.org/rufus-tokyo/classes/Rufus/Tokyo/Cabinet.html
http://rufus.rubyforge.org/rufus-tokyo/classes/Rufus/Tokyo/Table.html
or directly in the source
http://github.com/jmettraux/rufus-tokyo/blob/master/lib/rufus/tokyo/cabinet/abstract.rb
http://github.com/jmettraux/rufus-tokyo/blob/master/lib/rufus/tokyo/cabinet/table.rb
== Tokyo Cabinet install
On a Mac, you would do
sudo port install tokyocabinet
If you don't have Tokyo Cabinet on your system, you can get it and compile it :
git clone git://github.com/etrepum/tokyo-cabinet.git
cd tokyo-cabinet
git checkout 1.4.2
./configure
make
sudo make install
== dependencies
the ruby gem ffi
== mailing list
On the rufus-ruby list[http://groups.google.com/group/rufus-ruby] :
http://groups.google.com/group/rufus-ruby
== issue tracker
http://rubyforge.org/tracker/?atid=18584&group_id=4812&func=browse
== irc
irc.freenode.net #ruote
== source
http://github.com/jmettraux/rufus-tokyo
git clone git://github.com/jmettraux/rufus-tokyo.git
== credits
many thanks to the author of Tokyo Cabinet, Mikio Hirabayashi, and to the authors of ruby-ffi
http://tokyocabinet.sourceforge.net
http://kenai.com/projects/ruby-ffi
== author
John Mettraux, jmettraux@gmail.com
http://jmettraux.wordpress.com
== the rest of Rufus
http://rufus.rubyforge.org
== license
MIT
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