Abstract classes are exported for package developers that want to extend them, they cannot be instantiated directly.
AppenderTable is extended by Appenders that write to a data source that
can be interpreted as tables, (usually a data.frame). Examples are
AppenderDbi, AppenderRjdbc and AppenderDt.
dataGet the log recorded by this Appender as a data.frame
threshold, set_threshold(level)character or integer scalar.
The minimum log level that triggers this logger. See log_levels
layout, set_layout(layout)a Layout that will be used for
formatting the LogEvents passed to this Appender
destinationThe output destination of the Appender in
human-readable form (mainly for print output)
filters, set_filters(filters)a list that may contain
functions or any R object with a filter() method. These functions
must have exactly one argument: event which will get passed the
LogEvent when the Filterable's filter() method is invoked.
If all of these functions evaluate to TRUE the LogEvent is passed on.
Since LogEvents have reference semantics, filters can also be abused to
modify them before they are passed on. Look at the source code of
with_log_level() or with_log_value() for examples.
show(n, threshold)Show the last n log entries with a
log level bellow threshold.
append(event)Tell the Appender to process a LogEvent event.
This method is usually not called by the user, but invoked by a
Logger
filter(event)Determine whether the LogEvent x should be passed
on to Appenders (TRUE) or not (FALSE). See also the active binding
filters
add_filter(filter, name = NULL), remove_filter(pos)Add or remove a filter. When adding a filter an optional name can
be specified. remove_filter() can remove by position or name (if one
was specified)
Other abstract classes: AppenderDigest,
AppenderMail, AppenderMemory,
Filterable
Other Appenders: AppenderBuffer,
AppenderConsole, AppenderDbi,
AppenderFileRotating,
AppenderFile, AppenderGmail,
AppenderJson,
AppenderPushbullet,
AppenderRjdbc,
AppenderSendmail,
AppenderSyslog, Appender