摘要
传统的BPEL语言,只是静态地描述业务流程与所需Web服务之间的绑定关系,并不能很快适应动态变化的SOA环境;针对这一问题,该文提出一种自适应的BPEL流程编排和执行机制,通过推迟业务过程与所需服务之间的绑定时间,加入动态服务选择机制,从而使得BPEL流程的执行过程具有一定程度的自适应特征,不仅提高了BPEL流程编排和执行机制的鲁棒性,而且通过静态筛选和服务排名机制保证了该机制实现的效率。
Traditional BPEL languages, only statically describes the binding relations between business process and Web service required, therefore it cannot adapt to a dynamically SOA environment. Aimed at this case, this paper proposed a layout and execution mechanism of adaptive BPEL process. Through postponing the time between the business process and the service binding, it was sure to make the implementation course of BPEL processes have adaptive features on a certain degree. So it not only improved the robustness of the mechanism, but also guaranteed the implementation efficiency of the mechanism through statically filtering and service ranking mechanisms.
出处
《计算机与数字工程》
2011年第12期77-79,84,共4页
Computer & Digital Engineering
