Abstract Class for Filterables
Superclass for classes that have a $filter() method such as
Appenders and Loggers. See EventFilter for details.
filtersa list of all attached Filters.
filter()
Determine whether the LogEvent x should be passed on to
Appenders (TRUE) or not (FALSE). See also the active binding
filters.
Filterable$filter(event)
eventa LogEvent
add_filter()
Attach a filter
Filterable$add_filter(filter, name = NULL)
filter a function with the single argument event that returns TRUE
or FALSE;
an EventFilter R6::R6 object; or
any R object with a $filter() method.
If a Filter returns a non-FALSE value, will be interpreted as TRUE
(= no filtering takes place) and a warning will be thrown.
namecharacter scalar or NULL. An optional
name which makes it easier to access (or remove) the filter
remove_filter()
Remove a filter
Filterable$remove_filter(pos)
poscharacter or integer scalar. The name or index of the
Filter to be removed.
set_filters()
Set or replace (all) Filters of parent object. See EventFilter for how Filters work.
Filterable$set_filters(filters)
filtersa list (named or unnamed) of EventFilters
or predicate functions. See is_filter().
Other abstract classes:
AppenderMemory,
AppenderTable,
Appender
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