A collection of one or more interface class names this servicewill be registered under. The <service> element also hasa shortcut interface attribute for the usual case of justa single interface being used. This also cannot be used ifthe auto-export attribute is used.
The service provided when the service is registered. The serviceproperties are similar to map elements, but the keys must alwaysbe strings, and the values are required to be in a narrower range.
A set of 0 or more registration listeners attached to this servicecomponent. The registration listeners will be notified whenever theservice is registered or unregistered from the framework serviceregistry.