Atomic Chain Link Removal

Overview

The atomic chain link was designed to allow the From chain link to have some form of atomic execution built in so that users didn’t need to worry about it. In theory it would mean something like an FTP/SFTP/S3 component wouldn’t delete a file in the source until the entire route had been processed. In reality, none of the current components actually implement the IAtomicLink interface so it is going entirely unused. Not only that, the components are designed to provide a mechanism to chain services / providers together and then processing done on the messages. It should not be up to the components to decide what is atomic and what is not.

Alternatives

Post processing has been added to To chain links and this only happens once the To link has been executed. In this way, we already have a user driven event happening right at the end of the route which can provide that atomic nature. Any atomicity should be driven by the users implementation and not a decision that is to be made by the component.

Decision

The atomic part of components will be removed and not replaced as an adequate alternative (To post processing) already exists and will be removed before version 1.0.