Abstract: Techniques for integrating Information Systems with Application Servers are disclosed. The techniques can be used to implement a configurable connector interface that connects to existing interfaces used to access various Information Systems. The configurable connection interface can encapsulate these existing interfaces. Accordingly, the configurable connector interface can serve as a standard interface that can be used to connect an application server to various Information Systems. The configurable connection interface can be implemented as a “Resource Adaptor” that can be modified to fit the requirements of a particular existing interface used to access a particular information system (e.g., a database driver developed for a particular relational database). A Graphical User Interface (GUI) can be used to conveniently modify and deploy the modified Resource Adaptor file. These operations can conveniently be performed by using a deployment tool through a Graphical User Interface (GUI).

Abstract: A method for processing a message that includes receiving the message by a plurality of resource adapters (RA). The method includes calculating a selector string using an application instance selection portion of the message, determining whether the selector string calculated by the RA identifies the application instance corresponding to the RA, transmitting the message to the application instance corresponding to the RA when the selector string calculated by the RA identifies the application instance, and discarding the message when the selector string calculated by the RA does not identify the application instance corresponding to the RA, where one RA transmits the message to the application instance corresponding to the RA and the remaining RAs discard the message.

Abstract: A method for processing a message by a message provider that includes receiving, for a topic, a mutual exclusion function from each application instance of a plurality of application instances, receiving the message for the topic, and sending the message to one application instance of the plurality of application instances based on executing each of the mutual exclusion functions, wherein the mutual exclusion functions ensure that the message is sent to a single application instance of the plurality of application instances.

Abstract: A method for processing a message by a message provider that includes receiving, for a topic, a mutual exclusion function from each application instance of a plurality of application instances, receiving the message for the topic, and sending the message to one application instance of the plurality of application instances based on executing each of the mutual exclusion functions, wherein the mutual exclusion functions ensure that the message is sent to a single application instance of the plurality of application instances.

Abstract: A method for processing a message that includes receiving the message by a plurality of resource adapters (RA), wherein each RA corresponds to a different application instance of a plurality of application instances, calculating, by each RA of the plurality of RAs, a selector string using an application instance selection portion of the message, determining, by each RA of the plurality of RAs, whether the selector string calculated by the RA identifies the application instance corresponding to the RA, transmitting the message, by each RA of the plurality of RAs, to the application instance corresponding to the RA when the selector string calculated by the RA identifies the application instance, and discarding the message, by each RA of the plurality of RAs, when the selector string calculated by the RA does not identify the application instance corresponding to the RA, wherein one RA of the plurality of RAs transmits the message to the application instance corresponding to the RA and the remaining RAs of the