作业帮英语翻译Many Java [GJS96] applications arid applets need access to data that are persistently stored arid man¬aged by a database management system (DBMS).On the other hand,the object-oriented program¬ming language Java seems to be a pro
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英语翻译
Many Java [GJS96] applications arid applets need access to data that are persistently stored arid man¬aged by a database management system (DBMS).On the other hand,the object-oriented program¬ming language Java seems to be a promising can¬didate to provide both platform-independent arid easy-to-use access to DBMSs.Using Java,inter¬active graphical database front-ends can easily be built and downloaded from a WWW-server.
It seems obvious to us that in future DBMSs will provide the technologies to support multimedia ap-plications.This includes the management of media types such as image,audio,and video as well as of multimedia documents that capture the spatial and temporal composition of different media objects and specify interaction possibilities.It is accepted that object-oriented DBMSs (OODBMS) form a suitable basis for modeling,storage,and manage¬ment of different media types especially continuous media types as well as of multimedia documents [AK92.BWAH96.CK95,RNL95,WA96],As mul¬timedia documents are subject to presentation,the database front-end has to implement services like presentation of composite multimedia documents,interaction handling,and continuous data delivery.If these services are available in Java world-wide platform-independent access to multimedia infor¬mation stored in a DBMS is possible.
很多Java应用程序和小程序需要访问由数据库管理系统不断存贮和管理的数据,另一方面,目标导向的程序语言Java似乎是一个很有前途的候选者,可以提供独立平台和易于使用的DBMS访问.用Java,很容易建成交互的图像数据库前端,以及从全球资讯网服务器上下载.对我们来说似乎很明显,将来DBMS会提供更多技术来支持多媒体应用程序,包括媒介类型的管理,像图像、声音和视频,还有可以获得不同媒介对象时空合成及指定交互作用可能性的多媒体文件.大家都公认目标导向的DBMS为不同媒介类型,尤其是连续媒介类型以及多媒体文件的建模、存贮和管理建立了合适的基础.由于多媒体文件受演示的支配,数据库前端不得不实现诸如复合多媒体文件演示、交互性运用以及连续数据传输的服务.假如这些服务在Java全球平台上得以提供,独立访问在DBMS中存贮的多媒体信息就有可能实现.