April 2003
Beginner to intermediate
380 pages
12h 25m
English
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Making Instances Transactional
When an optimistic transaction is in progress, a
persistent-nontransactional instance transitions to persistent-clean if
it is a parameter of makeTransactional( ).
The values in managed fields of the instance in memory are unchanged. To
minimize the possibility of a verification failure at commit, you can
first call refresh( ) or refreshAll( ) with the instance as a parameter
before making the instance transactional.
It does not matter at what time during the transaction the instance is made transactional. If the verification policy is to compare field values, the values that are compared include at a minimum all of the fields accessed during the transaction.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.