mongo-ruby-driver/lib/mongo/objectid.rb

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# Copyright (C) 2008 10gen Inc.
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License, version 3, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License
# for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
require 'mongo/util/uuid'
module XGen
module Mongo
module Driver
class ObjectID
include Comparable
include Comparable
@@uuid_generator = UUID.new
# String UUID
attr_reader :uuid
# +uuid+ is a string. If nil, a new UUID will be generated.
def initialize(uuid=nil)
# The Babble server expects 12-byte (24 hex character) keys, which
# is why we throw away part of the UUID.
@uuid ||= @@uuid_generator.generate(:compact).sub(/(.{12}).{8}(.{12})/, '\1\2')
end
def to_s
@uuid
end
# This will make more sense when we implement the Babble algorithm for
# generating object ids.
def <=>(other)
to_s <=> other.to_s
end
end
end
end
end