| A Compass Gps Device is responsible for interacting with a data source and
reflecting it in a compass index. A data source can be a file system, or a
database through the use of ORM tool (like hibernate).
A device should be able to provide the ability to index the data source,
which usually means iterating through the device data and indexing it. It
might also provide "real time" monitoring of changes in the device, and
applying them to the index as well.
A CompassGpsDevice can not operate as a standalone, and must be a part of a
org.compass.gps.CompassGps instance (even if we have only one
device), since the device requires the Compass and the Batch Compass
instances in order to apply the changes to the index.
The device has a name associated with it, and the name must be unique among
all the devices within a single CompassGps instance.
author:
kimchy |