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## Package org.ka2ddo.yaac.filter

This package contains classes for marking `AX25Frames`, `AX25Messages` (decoded frames), and `stations/objects` as being of current interest to the user.

See:
Description

Interface Summary
FilterChangeListener | This listener is for classes who need to know when the settings of a filter have changed.
IrrelevantToPlaybackFilter | This tag interface marks a Filter subclass that is not suitable for filtering the loading of log files for playback.
MonitoringFilter | This interface defines extra methods a Filter that updates itself from real-time data must implement to allow turning on and off the updating.
PersistingFilter | Extra methods required for a Filter that can persist its values across instance creations and YAAC restarts.

Class Summary
CumulativeBooleanAndFilter | This filter accumulates the results of several filters.
DestinationFilter | This filter selects messages based on their destination AX.25 address.
Filter | This abstract class defines the basic concept of a message filter.
LastDigipeatFilter | This filter accepts or rejects messages based on the last station to transmit the message.
LocalStationFilter | This filter optionally eliminates all messages from excessively distant stations.
MessageContentFilter | Filter messages based on their containing (or not containing) specific elements in their messages, or specific strings in their free-text comments.
MicEFilter | This filter selects messages by the MicE status code.
OperatorPresentFilter | This filter optionally eliminates all messages from unmanned stations.
PacketSourceFilter | This filter selects packets and messages based on which interface port the message entered YAAC through.
PlaybackFilter | This filter chooses whether to view real-time only data, log file playback only data, or both.
PriorityFilter | This filter optionally eliminates all routine precedence messages.
RadiusFilter | This class implements a filter based on radius from a specified location (defaulting to the beacon location for the station).
RelativeTimeFilter | This filter selects information based on relative time point boundary.
SendingStationFilter | This filter selects all stations that match (or don't match) an entry in a list of station identifiers.
StationClassFilter | This filter allows selecting stations and messages solely by category of sending station.
SymbolFilter | This filter selects messages by the APRS symbol code, indicated by symbol table ID and symbol type.
ValidInvalidFilter | This Filter selects viewing messages that are only valid or only invalid.

## Package org.ka2ddo.yaac.filter Description

This package contains classes for marking `AX25Frames`, `AX25Messages` (decoded frames), and `stations/objects` as being of current interest to the user. Dynamically changing filter settings allows the user to look at different subsets of the packet data currently available from the network.

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