Pessimistic predicate/transform model for long running business processes

作者：Wang Jinling^*; Jin Beihong; Li Jing

来源：Tsinghua Science and Technology, 2005, 10(3): 288-297.

DOI：10.1016/S1007-0214(05)70071-7

• Extended transaction model
• Long duration transaction
• Long running business processes
• Transaction processing middleware Pessimistic predicate/transform model

Many business processes in enterprise applications are both long running and transactional in nature. However, no current transaction model can provide full transaction support for such long running business processes. This paper proposes a new transaction model, the pessimistic predicate/transform (PP/T) model, which can provide full transaction support for long running business processes. A framework was proposed on the enterprise JavaBeans platform to implement the PP/T model. The framework enables application developers to focus on the business logic, with the underlying platform providing the required transactional semantics. The development and maintenance effort are therefore greatly reduced. Simulations show that the model has a sound concurrency management ability for long running business processes.

• 出版日期2005