*** empty log message ***

src/ZODB/Transaction.py

+#!/usr/local/bin/python 
+# $What$
+
+__doc__='''A very simple HTTP transaction manager.
+
+This module provides a very simple transaction manager for
+HTTP requests in a single-threaded application environment.
+(Future versions of this module may support multiple transactions.)
+
+This module treats each HTTP request as a transaction.
+
+To use, import the module and then call the 'install' function.
+This will install the function 'get_transaction'.  This function will
+be used by transactional objects to get the current transaction.
+
+$Id: Transaction.py,v 1.1 1997/04/11 21:42:52 jim Exp $'''
+#     Copyright 
+#
+#       Copyright 1996 Digital Creations, L.C., 910 Princess Anne
+#       Street, Suite 300, Fredericksburg, Virginia 22401 U.S.A. All
+#       rights reserved.  Copyright in this software is owned by DCLC,
+#       unless otherwise indicated. Permission to use, copy and
+#       distribute this software is hereby granted, provided that the
+#       above copyright notice appear in all copies and that both that
+#       copyright notice and this permission notice appear. Note that
+#       any product, process or technology described in this software
+#       may be the subject of other Intellectual Property rights
+#       reserved by Digital Creations, L.C. and are not licensed
+#       hereunder.
+#
+#     Trademarks 
+#
+#       Digital Creations & DCLC, are trademarks of Digital Creations, L.C..
+#       All other trademarks are owned by their respective companies. 
+#
+#     No Warranty 
+#
+#       The software is provided "as is" without warranty of any kind,
+#       either express or implied, including, but not limited to, the
+#       implied warranties of merchantability, fitness for a particular
+#       purpose, or non-infringement. This software could include
+#       technical inaccuracies or typographical errors. Changes are
+#       periodically made to the software; these changes will be
+#       incorporated in new editions of the software. DCLC may make
+#       improvements and/or changes in this software at any time
+#       without notice.
+#
+#     Limitation Of Liability 
+#
+#       In no event will DCLC be liable for direct, indirect, special,
+#       incidental, economic, cover, or consequential damages arising
+#       out of the use of or inability to use this software even if
+#       advised of the possibility of such damages. Some states do not
+#       allow the exclusion or limitation of implied warranties or
+#       limitation of liability for incidental or consequential
+#       damages, so the above limitation or exclusion may not apply to
+#       you.
+#  
+#
+# If you have questions regarding this software,
+# contact:
+#
+#   Jim Fulton, jim@digicool.com
+#
+#   (540) 371-6909
+#
+# $Log: Transaction.py,v $
+# Revision 1.1  1997/04/11 21:42:52  jim
+# *** empty log message ***
+#
+# Revision 1.5  1997/03/25 20:42:58  jim
+# Changed to make all persistent objects transactional.
+#
+# Revision 1.4  1997/02/11 13:23:14  jim
+# Many changes to support both cPickle and LRT.
+#
+# Revision 1.3  1996/11/14 17:49:38  jim
+# Removed c-implementation support.
+#
+# Revision 1.2  1996/10/15 18:32:25  jim
+# Added support for cSingleThreadedTransaction
+#
+# Revision 1.1  1996/09/06 14:35:54  jfulton
+# For use with Chris doing installation
+#
+#
+# 
+__version__='$Revision: 1.1 $'[11:-2]
+
+# Install myself before anything else happens:
+
+# This both gets everything STT has *and* arranges for our
+# get_transaction to override their's
+from SingleThreadedTransaction import *
+
+import thread, SingleThreadedTransaction
+
+theTransactions={}
+
+def get_transaction():
+    id=thread.get_ident()
+    try: theTransaction=theTransactions[id]
+    except KeyError: theTransactions[id]=theTransaction=Transaction()
+    return theTransaction
+
+import __main__ 
+__main__.__builtins__.get_transaction=get_transaction
+
+class Transaction(SingleThreadedTransaction.Transaction):
+    '''\
+    Simple transaction objects.
+
+    '''
+
+    def abort(self):
+	'''\
+	Abort the transaction.
+
+	All objects participating in the current transaction will be
+	informed of the abort so that they can roll back changes or
+	forget pending changes.
+	'''
+	self._abort()
+	id=thread.get_ident()
+	del theTransactions[id]