
50 Sun Java System RFID Software 3.0 Administration Guide • February 2006
Additional Information for Common Properties
■ Log level – Log level settings follow logging conventions that are established in
J2SE, version 1.4.2. for more information, see the API documentation for the class
java.util.logging.Level found at
http://java.sun.com/j2se/1.4.2/docs/api/index.html. Also see “Log
Files” in the Sun Java System RFID Software Installation Guide.
■ Reader EPC identifier – This property, readerepc, is the EPC value that is
associated with the reader. This property is used by the RFID Event Manager to
identify the source of the events. Values other than the value shown in
TABLE 2-4
are possible. Refer to the EPC specification for further customization information.
■ Autoread property – Some RFID readers can be configured to continuously report
RFID tag events in their field of view, without requiring the adapter to constantly
ask for them. When the autoread property is enabled, the adapter configures the
RFID reader into automatic read mode and goes into a listening mode. In turn,
the adapter reports the list of tags to its consumers (the filters and components
that receive the tag event data). The PMLReader supports autoread mode.
When the autoread property is enabled, the adapter instructs the reader to do
the following:
■ Pulse its antennae for the scanDuration number of milliseconds.
■ Post the RFID tag events to the event consumers.
■ Loop again to gather new RFID tag events.
When the RFID reader does not support automatic mode and the autoread
property has been enabled, the adapter loops generating requests to the reader to
obtain the list of tags. This setting generates extra network traffic, as there needs
to be a request for every response, instead of simply listening for reports without
asking for them.
When the autoread property is disabled, the consumers of the reader adapter do
not see tag events, unless an external software module initiates the tag list request
programmatically. The autoread property is disabled by default.
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