
18 Sun Java System RFID Software 3.0 Administration Guide • February 2006
The adapter functions by receiving the EPC of the RFID tag and generating an event
that includes a timestamp and the source of the event. The source of the event is the
reader and antenna that read the tag. The event is posted to a set of listeners, such as
filters or connectors, that then process the event.
Filters can smooth the data by throwing away previously detected information, or by
using a mask-matching algorithm to route information to other components based
on the mask criteria. The filtered data is posted as an event to defined listeners. The
listeners can be other filters that further process the data or connectors that serve as
connectors to third-party applications that use the RFID tag event information. This
collection of adapters, filters and connectors is known as a role. The following
diagram shows a sample component arrangement using the adapter for the
Mercury3 reader that is passing data into two separate roles.
FIGURE 2-1 Sample BPS/Role Component Arrangement
RFID Configuration Manager Overview
In the first release of this software, the configuration of the Business Processing
Semantics (BPS) for an Execution Agent was accomplished by editing the XML
configuration file for each Execution Agent. Release 2.0 of the software provided a
configuration tool, the RFID Configuration Manager, to simplify this task. You
should not edit the raw XML files to define the adapter properties of the RFID
readers or to define the BPS. You should use the RFID Configuration Manager tool to
define a configuration object. The configuration object instantiates a specific BPS.
Note – See the appendixes for information on configuring the Event Manager by
editing the XML configuration file. Appendix A contains information for the
supported device adapters. Appendix B contains information for the supported
filters and connectors. Appendix C contains sample XML files.
Mercury3
Adapter
Smoothing
Filter
BandPass
Filter
Delta
Filter
Batch
Filter
JMS
Logger
File
Logger
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