International Business Machines Corporation

Andrew Daniel Tollerud

Jack Chiu-Chiu Yuan

James Edward Zimmer

Getachew G Birbo

Joyce Yuan-Sheng Hsiao

Sandra L Sherrill

Steve T Kuo

Gerald Dean Hughes

Haley Hoi Lee Fung

Judith Eleanor Hill

Yoshinobu Ueno

Robert Shiwen Lai

Michael Richard Artobello

John Kevin Flanigan

A buffer accessible by an application executing under an application server in a first address space is managed by a database adapter executing in a second address space. A data request from the application executing in said first address space, comprising a buffer locator in the empty state, is received by the database adapter executing in the second address space. A buffer is allocated in the first address space and the address of this buffer is stored in the buffer locator. Data associated with the data request, received from a database subsystem, is copied to the buffer. Control is then transferred back to the application whereby the application utilizes the buffer locator to access the buffer and process the data contained therein. A database adapter automatically managing application buffers across address spaces in accordance with the present invention may be referred to as an 'auto-buffer database adapter'.

Method, computer program product, and system for automatic application buffering

A request is received from a user associated with the client and a transaction aging value is copied to a security aging value associated with the cached user security profile if the transaction aging value is specified with the user request. A decay time is calculated utilizing a profile refresh time stamp associated with the cached user security profile and a system clock. The cached user security profile is then refreshed if a refresh event occurs.

Multi-level security profile refresh

A master dynamic aging value associated with the client is calculated responsive to an operator command to perform the global refresh. When receiving a request from a user associated with the client, a sub-dynamic aging value associated with a cached user security profile for the user is compared to the master dynamic aging value. If the sub-dynamic aging value is not equal to the master dynamic aging value, then the cached user security profile is refreshed.

Method, computer program product, and system for global refresh of cached user security profiles

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San Jose, CA, United States of America

Andrew Daniel Tollerud