# File lib/stella/core_ext.rb, line 303
  def initialize(stamp=nil, uid=nil, n=nil)
    @stamp, @uid, @n = stamp, uid, n
    @stamp &&= @stamp.utc.to_i if Time === @stamp      
    self.class.field_names.each do |fname|
      self.send("#{fname}=", 0) unless fname == :id || self.send(fname)
    end                                                
    @score ||= 1.0
    @errors ||= 0
  end