公开(公告)号：US20080222708A1

公开(公告)日：2008-09-11

申请号：US12123723

申请日：2008-05-20

申请人： Rupa BHAGHAVAN ,  Tawei Hu ,  Kenneth Carlin Nelson ,  Randal James Richardt

发明人： Rupa BHAGHAVAN ,  Tawei Hu ,  Kenneth Carlin Nelson ,  Randal James Richardt

IPC分类号： G06F21/24 ,  H04L9/32 ,  G06F17/30

CPC分类号： G06F17/30427 ,  G06F21/6218 ,  G06F21/6227 ,  Y10S707/99932 ,  Y10S707/99934 ,  Y10S707/99937 ,  Y10S707/99938 ,  Y10S707/99939

摘要： A system to generate an SQL sub-expression that implement access control rules stored in a library server. The SQL sub-expression is then merged with the SQL passed from an application program interface (API). The access control checking mechanism is implemented on the server side of the content management system. In this client/server environment, the query SQL statement is built in two layers: the API (client) layer and the server layer. The API sends the query string to the underlying stored procedure. The stored procedure then generates the access control logic based on the configuration parameters of the library server. This access control logic is dynamically added to the query string sent by the API. The stored procedure prepares, builds and executes this new query string as a dynamic SQL statement.

摘要翻译： 用于生成实现存储在库服务器中的访问控制规则的SQL子表达式的系统。 然后，SQL子表达式与从应用程序接口（API）传递的SQL合并。 访问控制检查机制在内容管理系统的服务器端实现。 在此客户端/服务器环境中，查询SQL语句分为两层：API（客户端）层和服务器层。 API将查询字符串发送到底层存储过程。 存储过程然后根据库服务器的配置参数生成访问控制逻辑。 该访问控制逻辑被动态添加到由API发送的查询字符串中。 存储过程准备，构建并执行此新查询字符串作为动态SQL语句。

公开(公告)号：US06999966B2

公开(公告)日：2006-02-14

申请号：US10128332

申请日：2002-04-23

申请人： Lily L. Liang ,  Tawei Hu ,  Kenneth C. Nelson ,  David M. Choy ,  Khanh M. Le ,  Edward J. Perry

发明人： Lily L. Liang ,  Tawei Hu ,  Kenneth C. Nelson ,  David M. Choy ,  Khanh M. Le ,  Edward J. Perry

IPC分类号： G06F17/00

CPC分类号： G06F17/30607 ,  Y10S707/99942

摘要： A content management system is provided including a plurality of tables forming a tree-based storage hierarchy. The system includes a library server having a stored procedure which creates a hierarchical tree-based storage structure having any number of child components horizontally and any number of component types vertically thus specifying a tree topology. Advantageously, a single invocation of the stored procedure will create the specified tree-based data storage structure which is stored in the library server.

公开(公告)号：US5940594A

公开(公告)日：1999-08-17

申请号：US902285

申请日：1997-07-29

申请人： Seifu Ali ,  Thomas G. Burket ,  Tawei Hu ,  Gerald Edward Kozina ,  Thomas S. Lee

发明人： Seifu Ali ,  Thomas G. Burket ,  Tawei Hu ,  Gerald Edward Kozina ,  Thomas S. Lee

IPC分类号： G06F17/30 ,  G06F15/00

CPC分类号： G06F17/30067

摘要： The present invention is directed to a method and system for storing and managing objects, such as binary large objects (blobs) in a digital library system which includes a plurality of clients, an object server for storing an object, a cache server for storing an copy of the object, and a centralized server for storing information identifying the object as being stored in the object server and associating one or more of the clients with the cache server, in which one of the clients, as a requesting client, requests retrieval of an object, a copy of the requested object is sent from the cache server to the requesting client if the object is stored in said cache server, and a copy of said object is sent from the object server to said requesting client if the object is not stored in the cache server; and a copy of the requested object is sent from the object server to the cache server after the object server sends the object to the client, in which the object sent to the client is made available to the client regardless of whether sending of the copy of the object to the cache server is completed.

摘要翻译： 本发明涉及一种用于在数字图书馆系统中存储和管理诸如二进制大对象（blob）的对象的方法和系统，该数字图书馆系统包括多个客户端，用于存储对象的对象服务器，用于存储对象的高速缓存服务器 对象的副本以及用于存储标识被存储在对象服务器中的对象的信息并将一个或多个客户端与高速缓存服务器相关联的集中式服务器，其中作为请求客户端的客户端之一请求检索 如果对象存储在所述缓存服务器中，则所请求对象的副本从缓存服务器发送到请求客户端，并且如果对象不是，则将对象服务器的副本从对象服务器发送到所述请求客户端 存储在缓存服务器中; 并且在对象服务器将对象发送到客户端之后，将所请求的对象的副本从对象服务器发送到缓存服务器，其中发送给客户端的对象可用于客户端，而不管是否发送副本 缓存服务器的对象完成。