在建模语言Apla中实现多媒体数据库应用的方法研究

随着信息技术在各大领域的广泛应用,产生的多媒体数据所占比例越来越大,对多媒体数据处理的需求也越来越多,高级程序设计语言支持多媒体数据处理的功能也变得尤为重要.采用模型驱动的思想,在支持模型驱动软件开发PAR平台的Apla→Java程序自动生成系统中,扩充对多媒体数据处理的功能,并提出多媒体数据处理机制和Apla中基于关系代数的文本处理机制自然融合,包含了对多媒体数据处理的Apla语言程序,可以通过Apla→Java程序自动生成系统自动转换成等价的Java程序,使得Apla语言具有对多媒体数据处理的能力.

The Research on Implementation Method of Multimedia Database Applications in the Modeling Language Apla

With the extensive application of information technology in various fields,the proportion of multimedia data is increasing,and the demand for multimedia data processing is increasing.Advanced programming languages support the function of multimedia data processing has become particularly important.The purpose of the paper is to extend the function of multimedia data processing in AplaWingdings`C@Java program automatic generation system by using the model driven architecture(MDA),which is successfully in PAR platform with the international leading level.The multimedia data processing mechanism proposed and the text processing mechanism based on relational algebra in Apla can be integrated naturally,and the Apla program which contain the multimedia data processing can be automatically converted into the equivalent Java program by the AplaWingdings`C@Java program automatically converted system,it makes the Apla language has the ability to process multimedia data.