Product: OpenFusion Notification Service

Version: v4

Description:

What is stored in the data files for the Notification Service v4?

Resolution:

The V4 architecture is different from that of V2.5 and V3, the files that are persisted to the data directory will look different to the ones in earlier versions of OpenFusion as a result.

OpenFusion v4 separates basic event handling/processing from the CORBA implementation to a pure-Java messaging engine. There are now two layers in the service: the CORBA classes and the messaging subsystem. The objects in both layers are persistent, and are stored in slightly different ways. The CORBA objects have UUID-based file names; the messaging objects have numeric-based file names.

The persistent objects the Notification Service stores are channels, admins, proxies and filters. This enables you to stop and restart the service without losing its configuration. If you are using persistent events you will also see files containing the word "journal" in the file name.