| Transaction management
Transactions are a series of get/set calls to a session context which must
be seen as atomic (single modification).
We distingish between reading and writing. Usually parallel reading is
allowed but if one thread wants to write, no other can read or write.
author: Carsten Ziegeler version: CVS $Id: TransactionManager.java 433543 2006-08-22 06:22:54Z crossley $ |