Article:		JBoss Optimizations 101
Subject:		difference between read-only and notsupported
Date:		2003-06-02 11:48:25
From:		anonymous2
Hi ! what is the difference between setting method as read-only or setting method as notsupported (transaction attribute)

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• difference between read-only and notsupported
  2003-06-03 01:23:18  anonymous2 [View]
  
  
  First, the behaviour with notSupported and CMP2.0 is undefined per-spec (and strongly discouraged).
  
  If you use read-only, the data loading process (from the DB) *will* take place in the DB transaction but will *not* be locked at the *application server* level (we are not speaking about the database level here).
  
  Cheers,
  
  
  sacha