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Chapter 14. Jini > SUMMARY

SUMMARY

The six basic ideas of Jini were introduced in this chapter:

  • A community describes what happens when two or more devices using Jini technology come together to share their services. Jini software lets all devices work together, so you can create your own personal network or community any time, anywhere.

  • Jini devices receive their instructions through the network via a lookup server, a device that tracks all the Jini devices on a network and makes sure they can communicate with all the other devices.

  • Discovery is the process by which Jini in-home applications find the lookup services that serve their community.

  • Jini technology uses a mechanism called leasing to detect when a service becomes unavailable. When a device registers with the lookup service it receives a lease that it must periodically renew. If the lease is not renewed, then the lookup service removes the device from the list of services offered. Removing a device does not interrupt the state or services offered by the remaining members of the community.

  • Remote events are used by Jini to inform interested parties about changes that occur on a home network.

  • Transactions are an important tool for building reliable Jini-based home networks.


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