Appenders are attached to Loggers and manage the output of the LogEvents to a destination - such as the console or a text file. An Appender has a single Layout that tells it how to format the LogEvent. For details please refer to the documentations of the specific Appenders.
Additional Appenders that support a wide range of output destinations - such as databases, email, push-notifications or Linux syslog - are available from the package lgrExtra.
NOTE: This is an abstract class. Abstract classes cannot be instantiated directly, but are exported for package developers that want to extend lgr - for example by creating their own Appenders or Layouts. Please refer to the see also section for actual implementations of this class.
The output destination of the
Appender in human-readable form. This
is mainly used when printing information about the Appender itself.
Appender$new(layout = Layout$new(), threshold = NA_integer_)
Set the minimum log level that triggers this Appender. See
threshold() for examples
integer scalar log level. See log_levels.
Layout that this Appender will use for formatting
Appender$format(color = FALSE, ...)