# File lib/moneta/berkeley.rb, line 13
    def initialize(options={})
      file = @file = options[:file]
      @db = Bdb::Db.new()
      @db.open(nil, file, nil, Bdb::Db::BTREE, Bdb::DB_CREATE, 0)
      unless options[:skip_expires]
        @expiration = Moneta::Berkeley.new(:file => "#{file}_expiration", :skip_expires => true )
        self.extend(StringExpires)
      end
    end