odb_test.rb

class Post
  include ODB::Persistent
  attr_accessor :title, :author
  def __serialize_key__; title.to_sym end
end

db = ODB.new
post = nil
db.transaction do
  post = Post.new.tap {|p| p.title = "x"; p.author = "Joe" }
end
   
db.store[:x] == post # => true