Subscription Service Documentation

Application Program Interface to read consistent data of the same virtual accelerator cycle from different devices or properties using event connections.

The two main classes are Subscription to subscribe to a set of devices and properties, and ApplicationCallback to receive the responses of the Subscription Service.

Note:

Subscriptions are possible only within one timing domain! Attempts to subscribe to devices that are spread over several domains, e.g. Unilac and SIS, will not work properly - and will be refused in later revisions.

The subscription service is based on event connections. Other connections, e.g. periodical ones, are not (yet) supported.

Author:

Bert Besser, Ludwig Hechler

Thanks to Ralf Huhmann for many discussions and helpful tips.

Date:

6. Dec. 2007

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