/usr/lib/ruby/vendor_ruby/moneta/adapters/kyotocabinet.rb is in ruby-moneta 0.7.20-2.2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | require 'kyotocabinet'
module Moneta
module Adapters
# KyotoCabinet backend
# @api public
class KyotoCabinet < Memory
# @param [Hash] options
# @option options [String] :file Database file
# @option options [::KyotoCabinet::DB] :backend Use existing backend instance
def initialize(options = {})
if options[:backend]
@backend = options[:backend]
else
raise ArgumentError, 'Option :file is required' unless options[:file]
@backend = ::KyotoCabinet::DB.new
raise @backend.error.to_s unless @backend.open(options[:file],
::KyotoCabinet::DB::OWRITER | ::KyotoCabinet::DB::OCREATE)
end
end
# (see Proxy#key?)
def key?(key, options = {})
@backend.check(key) >= 0
end
# (see Proxy#delete)
def delete(key, options = {})
@backend.seize(key)
end
# (see Proxy#create)
def create(key, value, options = {})
@backend.add(key, value)
end
# (see Proxy#close)
def close
@backend.close
nil
end
end
end
end
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