JINI Architecture (1)
Jini is a collection of services (hardware, software, or both)
When “a Service” connects to the network, it sends a small “hello” packets (512 bytes) to announce its existence
Jini “Lookup Service” notices this packet and query the service to discover it capabilities, and makes this info available for other devices on the network
Then the Service registers with the Lookup Service, it provides a proxy object
When a client wants to use a service (for example scanner) it asks the Lookup Service to provide info about available services (the Lookup service provides a copy of the proxy object. The client makes calls to the proxy object that arranges to do the work)