Abstract: Aiming at the theme of accessing heterogeneous data transparently, a model for the access to data resources in the grid is put forward in this paper, taking advantage of Lightweight Directory Access Protocol(LDAP) and Language Integrated Query(LINQ) to enhance the resource sharing and advance the support of the access to existing data for applications in the background of the grid. The structure and key technologies are emphasized. This model realizes the access to multi-resource, such as SQL database, XML document, ADO.NET dataset, list in memory.

Key words: grid, data access, meta data, Lightweight Directory Access Protocol(LDAP), Language Integrated Query(LINQ)

摘要： 为促进网格环境下数据资源的共享，增强网格应用对现有数据访问的支持，针对资源的异构集成与透明访问问题，利用LDAP协议和LINQ技术提出一种基于网格的多源数据访问模型，并论述模型结构和关键模块的实现原理。该模型可实现对数据库、XML文档、ADO.NET数据集、内存数组集合等数据源的透明访问。

关键词: 网格, 数据访问, 元数据, LDAP协议, 语言集中查询

CLC Number: 

• TP391