BabuDB/Java:

defined a transaction failure policy: if an operation of a transaction fails the transaction will be reduced to the operations that have been executed successfully before and the error is stored and returned to the user application after making it persistent;

git-svn-id: https://babudb.googlecode.com/svn/trunk@496 d4c7dd96-b7b2-11dd-893d-d98698f66bbf