| Pessimistic Predicate／Transform Model for Long Running Business Processes |
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| 引用本文： | 汪锦岭,金蓓弘,李京.Pessimistic Predicate／Transform Model for Long Running Business Processes[J].清华大学学报,2005,10(3):288-297. |
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| 作者姓名： | 汪锦岭 金蓓弘 李京 |
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| 作者单位： | InstituteofSoftware,ChineseAcademyofSciences,Beijing100080,China |
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| 基金项目： | Supported by the National Key Basic Research and Development (973) Program of China (No. 2002CB312005), and the National High-Tech Research and Development (863) Program of China (No. 2003AA115440) |
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| 摘 要： | 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.
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| 关 键 词： | 长时间运行 交易模型 交易过程 中间件 |
| 收稿时间： | 4 June 2004 |
Pessimistic Predicate/Transform Model for Long Running Business Processes |
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| Jinling Wang, Ê&#x;ಭ, Beihong Jin,
,Jing Li, ຬ.Pessimistic Predicate/Transform Model for Long Running Business Processes[J].Tsinghua Science and Technology,2005,10(3):288-297. |
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| Authors: | Jinling Wang Ê&#x;ಭ Beihong Jin
Jing Li ຬ |
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| Institution: | Institute of Software, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | 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. |
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| Keywords: | long duration transaction extended transaction model transaction processing middleware |
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