From: Hannes Wyss <hwyss@...>
Date: 2005-12-20T19:27:15+09:00
Subject: [ANN] Object Database Access v 1.0 released

Hi all!

Here comes yet another way to map Ruby-Objects to a Relational Database:

ODBA is an unintrusive Object Cache system. It adresses the crosscutting 
concern of object storage by disconnecting and serializing objects into 
storage. All disconnected connections are replaced by instances of 
ODBA::Stub, thus enabling transparent object-loading.

ODBA supports: 
* transparent loading of connected objects
* index-vectors
* transactions
* transparently fetches Hash-Elements without loading the entire Hash

An Example:
include 'odba'

#connect default storage manager to a relational database 
ODBA.storage.dbi = ODBA::ConnectionPool.new('DBI::pg::database', 'user', 'pw')

class Counter 
  include ODBA::Persistable
  def initialize
    @pos = 0
  end
  def up
    @pos += 1
    self.odba_store
    @pos
  end
  def down
    @pos -= 1
    self.odba_store
    @pos
  end
end

Thanks in advance for any feedback that comes my way!

Cheers 
Hannes

-- 
Mit freundlichen Gr�ssen / best regards

Hannes Wyss
Konzeption & Entwicklung

pub  1024D/60312B5F 2003-10-09 Hannes Wyss <hwyss@ywesee.com>
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