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http://dx.doi.org/10.3745/KIPSTD.2004.11D.3.671

Design of Required Interface for Components in EJB Environment  

Yoon, Hee-Yoon (숭실대학교 대학원 컴퓨터학과)
Kim, Soo-Dong (숭실대학교 컴퓨터학부)
Publication Information
The KIPS Transactions:PartD / v.11D, no.3, 2004 , pp. 671-682 More about this Journal
Abstract
As new and diverse information technologies are being introduced and software complexity is increased, software development cost and efforts are also sharply increased. Component-Based Development (CBD) technology is appealing as a new way to reduce the cost and effort by increasing reusability and maintainability. Component in CBD has variability infernally which enables customization of the component within the specific domain. A component user can easily set up internally variability parts though Required interface which is provided by the component. Enterprise JavaBeans (EJB) is utilized as a commercial standard to implement Java-based components. However, EJB constructs are limited in directly implementing Required interfaces of coarse-grained components［8］. In this paper, we define Required interface and propose interface-storage technique, class-storage technique, interface-generation technique, and Plug -in technique for implementing required interface of component. Interface-storage technique stores variable value in Required interface and class-storage technique take the Bean containg variability as Required interface without modification of component model. Interface-generation technique generates new Bean which takes the role of Required interface for component variability and Plug-in technique sets up component variability that component user plugged-in variable part externally The proposed four techniques conform to the semantics of CBD component interface and enable the implementation of high quality components.
Keywords
EJB; Component; Required; Interface; Implementation; CBD;
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