International Business Machines Corporation

Paul Stanley

Jeff Jianfei Li

Piotr Przybylski

John Henry Green

Fayaz Adam

Philip Ivor Wakelin

Bryan Eric Aupperle

Travis Eli Nelson

Suraksha Vidyarthi

Vernon Maurice Green

Ernest Wing Mah

Amy Thatcher Mollin

Elizabeth Catherine Savoie

A query into a database is processed by receiving an instruction to partition data in the database into respective data partitions for the query. In response to the instruction, a query execution plan is generated that specifies the data from the database for the respective data partitions according to at least one data characteristic. The query execution plan is executed to compel reading the data of the data partitions from the database in respective data streams independently one from another.

Database-agnostic parallel reads

To make a connection between a user application and a data source fault tolerant, a user may use a wrapper generator to create an API wrapper that retries request that may have failed due to a service disruption. Generally, the wrapper manages a cache and contains the necessary information for retrying a connection after a service disruption. To create the wrapper, the wrapper generator may identify the different commands used by the user application to access the data source. The wrapper generator presents these commands to the user who organizes the commands to generate usage patterns for the different requests the user application may send to the data source. The user may also define a caching preference associated the commands in the usage patterns. To restart the connection, the wrapper may use the cache data to generate a new request to complete the original failed request.

Generating fault tolerant connectivity API

A computer program product comprises a computer useable medium. The computer useable medium has a computer readable program such that when the computer readable medium is executed on a computer, the computer is caused to provide a data interface between an adapter component and one or more application interface components for a runtime application. Further, the computer is caused to establish a cursor that iterates over a plurality of data objects within a data set of the runtime application. In addition, the computer is caused to establish an accessor that provides access to a data element of the data object. The computer is also caused to provide the cursor and the accessor to the adapter component so that the adapter component accesses data through the one or more application interface components of the runtime application.

Method and system for providing a data exchange service provider interface

A computer program product comprises a computer useable medium. The computer useable medium has a computer readable program such that when the computer readable medium is executed on a computer, the computer is caused to configure an adapter such that the adapter is specific to a data source, provides a communication link to the data source, converts a format of the data source to a format native to a middleware system, and converts a format of metadata of the data source to a standard metadata format. Further, the computer is caused to configure an application interface component to convert an invocation of a function in the middleware system to an invocation of a function provided by an Enterprise Information System through the adapter, convert the data format of the middleware system to a format native to the Enterprise Information System accessed through the adapter, and maintain metadata describing a message format and a function provided by the adapter.

Method and system for providing a componentized resource adapter architecture

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Delray Beach, FL, United States of America

Paul Stanley