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    • 1. 发明授权
    • Programming model for subscription services
    • 订阅服务的编程模型
    • US07177859B2
    • 2007-02-13
    • US10180662
    • 2002-06-26
    • Shyamalan PatherPraveen SeshadriPhil GarrettRobert F. BlanchHolly KnightDick DievendorffVince H. Curley
    • Shyamalan PatherPraveen SeshadriPhil GarrettRobert F. BlanchHolly KnightDick DievendorffVince H. Curley
    • G06F17/30G06F15/16
    • G06F9/542G06F17/30867G06F2209/544G06Q30/02H04L67/26Y10S707/99933Y10S707/99934Y10S707/99936
    • The present invention relates to a subscription modeling system and methodology. A query processor receives subscription query and subscriber information and transforms the query and subscriber information into data. An index component propagates at least one database with the transformed data; and a matching component that associates the transformed data with event data to generate a database of notification data that can be delivered to subscribers. The invention provides for abstracting subscription and subscriber information (as well as event information if desired) to high-level classes (e.g., data fields)—thus the invention provides for modeling such notification related information as data. Subscription applications can thus be developed at high levels wherein complex subscription queries and subscriber information can be defined as data fields for example. Databases in accordance with the data fields can be propagated with subscription/subscriber specific information. The present invention takes advantages of the processing power associated with database engines (e.g., SQL server) to generate notifications via performing a join operation on the databases (e.g., subscription database(s), subscriber database(s) and event database(s)). Accordingly, notifications are generated en masse as compared to per subscription per subscriber. Thus the present invention provides for a highly scalable and efficient notification system.
    • 本发明涉及订阅建模系统和方法。 查询处理器接收订阅查询和订户信息,并将查询和用户信息转换为数据。 索引组件使用转换的数据传播至少一个数据库; 以及匹配组件,其将经变换的数据与事件数据相关联,以生成可以递送给订户的通知数据的数据库。 本发明提供了将订阅和订户信息(以及如果需要的事件信息)提取给高级类(例如,数据字段) - 本发明提供了对与数据相关的通知相关信息进行建模。 因此,订阅应用程序可以以高级别开发,其中复合订阅查询和订户信息可以被定义为例如数据字段。 根据数据字段的数据库可以使用订阅/订户特定信息进行传播。 本发明利用与数据库引擎(例如,SQL服务器)相关联的处理能力来通过对数据库(例如订阅数据库,订户数据库和事件数据库)执行加入操作来生成通知, )。 因此,与每个用户的每个订阅相比,大量生成通知。 因此,本发明提供了高度可扩展和高效的通知系统。