The Design of a Distributed Object-Oriented Programming ed on Smalltalk System

• Main Authors: M.D. Chu, 邱明德
• Other Authors: P.H. Huang
• Format: Others
• Language: en_US
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/15154772006657146494

碩士 === 國立中興大學 === 應用數學研究所 === 81 === Programming a distributed application that allows users to operate on multiple workstations is quite difficult due to the complicated computer network communication details. We design and implement a distributed object-oriented programming environment based on Smalltalk system for developing the distributed applications. In this programming environment, Remote Method Invocation(RMI) mechanism is proposed to support programmers network transparency and object location Programmers can send messages to objects within Smalltalk systems residing on different workstations as easily as sending messages to local objects. By the RMI mechanism, it is very easy to make an object to be shared by multiple Smalltalk systems. For decreasing the average access time to a remote shared object, we also provide with an Object Replicating Service that will maintain all of the shared data object in the network to be identical By integrating the Object Replication Service and the traditional model-view-controller(MVC) triad in Smalltalk system, the model-view-controller(DMVC) triad is achieved. DMVC makes a distributed application as easy as programming a application. Besides, object protection and concurrency control are also discussed and solved in this thesis.