System, method, and computer program product for runtime invocation of an appropriate version of program instructions in an on-demand database

摘要

In accordance with embodiments, there are provided mechanisms and methods for runtime invocation of an appropriate version of program instructions in an on-demand database service. These mechanisms and methods for providing such runtime invocation can enable embodiments to ensure that new versions of developed applications will operate in the same application environment of a previous version. The ability of embodiments to provide such runtime invocation may lead to an improved application migration development/runtime framework, etc.

主权项

1. A method, comprising:
receiving, in an application, program instructions of the application at an on-demand database service, the program instructions including a plurality of different portions, where each portion of program instructions comprises a different version of the application, where at least one of the versions is an update to another one of the versions; determining which of the different versions of the application is to be invoked by applying a test included with the program instructions to version information associated with a subscriber of the on-demand database service; and invoking one of the portions of the program instructions in the application that comprises the determined version of the application for invoking the determined version of the application.