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    • 1. 发明授权
    • Information server and pluggable data sources
    • 信息服务器和可插拔数据源
    • US07493311B1
    • 2009-02-17
    • US10610258
    • 2003-06-30
    • Paul L. CutsingerZhong ChenRobert S. WigtonRick MolloyJohn R. BartlowLei TanDerek R. Westcott
    • Paul L. CutsingerZhong ChenRobert S. WigtonRick MolloyJohn R. BartlowLei TanDerek R. Westcott
    • G06F7/00G06F17/30G06F17/20
    • G06F17/30545Y10S707/99933Y10S707/99934
    • An information server may function as a centralized query broker that accepts queries from query clients, dispatches queries to potentially disparate data sources, and returns query results to query clients. An information server may centralize information access and security/control operations and may provide a set of uniform interfaces for accessing various types of data sources. A pluggable data source interface may be used for extending the data and actions that are available to an information server. The queries that arrive at the data sources are typically simple queries, which contain no sub-query addressing to a different data source. To make a data source pluggable, a data source may expose a standard interface and may store information about the data source's existence so that an information server will be able to determine, from the stored information, which data sources are available for responding to queries in the information server system.
    • 信息服务器可以用作接受来自查询客户端的查询,调度查询到潜在的不同数据源的集中查询代理,并将查询结果返回到查询客户端。 信息服务器可以集中信息访问和安全/控制操作,并且可以提供用于访问各种类型的数据源的一组统一接口。 可插拔数据源接口可用于扩展可用于信息服务器的数据和动作。 到达数据源的查询通常是简单的查询,它不包含对不同数据源的子查询寻址。 为了使数据源可插拔,数据源可以公开标准接口并且可以存储关于数据源的存在的信息,使得信息服务器将能够从存储的信息中确定哪些数据源可用于响应数据源的查询 信息服务器系统。