June 2015
Intermediate to advanced
326 pages
7h 18m
English
Content preview from Mastering jBPM 5Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Persistence and transactions
The default persistence mechanism of the jBPM engine is based on the JPA 2/Hibernate implementation. Each engine operation (start process, start task, complete task, and so on) is run inside the scope of a transaction. TransactionInterceptor demarcates each command execution and eventually, depending on the transaction management used (Container Managed Transactions (CMT) or UserTransaction Bean Managed Transactions (BMT)), enlists the EntityManager engine in the ongoing transaction. We have seen how both session and task persistence works through CommandService and the interceptor architecture.
The default engine persistence configuration boils down to the engine persistence unit (defined in a persistence.xml file ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.