VOSS 3.1 http://voss.logicarts.com Database Management for Smalltalk Thu, 22 Mar 2012 16:24:47 +0000 http://wordpress.org/?v=2.5 en http://voss.logicarts.com/2008/01/09/home/% http://voss.logicarts.com/2008/01/09/home/%#comments Wed, 09 Jan 2008 00:19:07 +0000 John Clapperton http://voss.logicarts.com/2008/01/09/home/ Transparent Persistence

+ Transaction Processing…

 

Smalltalk is pure object-oriented programming for complex business and technical applications, but the benefits of this can be lost in the well-known ‘impedance mismatch’ with relational databases.

The VOSS open source virtual object storage system extends Smalltalk with integrated database management, providing transparent multi-user access and transaction processing of persistent, versioned, Smalltalk objects directly accessible by normal programming, with efficient persistent Btree collection classes, including the multi-key/multi-value/key-set VirtualDictionarySet for aggregation and query-building.

  • Multi-process, multi-machine transactional access to distributed objects
  • ACID transactions with two-phase commit, logging and rollforward crash recovery
  • Persist clustered complexes of any Smalltalk classes except block closures
  • Historical object versioning, MVRC repeatable read, MVCC concurrency control
  • Automatic object locking with transaction rollback & retry on deadlock time-out
  • Automatic change detection, no lock conflicts with sub-transactions, short read-locks
  • Multi-key/multi-value/key-set Btree VirtualDictionarySet with query-building methods
  • Continuation Transactions manage alternative futures for design or what-if
  • Long Continuation Transactions may be persisted prior to ultimate commit/rollback
  • Web server / application process rendezvous
  • Distributed copying, parented copying, identity-exchange, checkout, read-only etc
  • 24×7 operation, with concurrent variable-rate incremental foreground & background garbage collection and snapshot backup of the set of distributed virtual spaces.
  • Up to 150 logged & flushed transactions per second on 3GHz P4 IDE hardware
  • Terabyte 64-bit object id and addressing default, configurable up to 128-bit
  • Dual Licensing - Open Source GPLv3 and/or Supported Commercial Licence

…Seamless Smalltalk Solutions Download VOSS



(C) Logic Arts Ltd 2011

]]> http://voss.logicarts.com/2008/01/09/home/%/feed VOSS 3.150.09 http://voss.logicarts.com/2012/03/22/voss-315009/% http://voss.logicarts.com/2012/03/22/voss-315009/%#comments Thu, 22 Mar 2012 16:24:47 +0000 John Clapperton http://voss.logicarts.com/?p=116 VOSS 3.150.09 (beta) is unchanged from 3.150.08 except support for VA Smalltalk 8.5.

Download VOSS 3.150.09 (beta) here


Join the forum discussion on this post]]> http://voss.logicarts.com/2012/03/22/voss-315009/%/feed Technical support during evaluation of VOSS http://voss.logicarts.com/2011/08/06/technical-support-during-evaluation-of-voss/% http://voss.logicarts.com/2011/08/06/technical-support-during-evaluation-of-voss/%#comments Sat, 06 Aug 2011 10:51:07 +0000 John Clapperton http://voss.logicarts.com/?p=115 Save time! If you have any questions whilst evaluating VOSS for the first time, contact me by email: jc@logicarts.com  I’ll get back to you as soon as I can.

John

]]> http://voss.logicarts.com/2011/08/06/technical-support-during-evaluation-of-voss/%/feed VOSS 3.150.08 http://voss.logicarts.com/2011/01/17/voss-315008/% http://voss.logicarts.com/2011/01/17/voss-315008/%#comments Mon, 17 Jan 2011 14:43:44 +0000 John Clapperton http://voss.logicarts.com/?p=113 New in this release, 3.150.08 adds a feature to the garbage-collector which will return the sets of virtual objects which reference each of a specified set of ‘target’ virtual objects.

Download VOSS 3.150.08 here


Join the forum discussion on this post]]> http://voss.logicarts.com/2011/01/17/voss-315008/%/feed