Struct NullHandler

pub struct NullHandler { /* private fields */ }

A handler that does nothing

Implementations

impl NullHandler

pub fn new(level: LogLevel) -> Self

Trait Implementations

impl Debug for NullHandler

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for NullHandler

fn default() -> Self

Returns the “default value” for a type.

impl Handler for NullHandler

fn level(&self) -> LogLevel

Get the log level

fn set_level(&mut self, level: LogLevel)

Set the log level

fn is_enabled(&self) -> bool

Check if the handler is enabled

fn set_enabled(&mut self, enabled: bool)

Set whether the handler is enabled

fn formatter(&self) -> &Formatter

Get the formatter

fn set_formatter(&mut self, formatter: Formatter)

Set the formatter

fn set_filter(&mut self, filter: Option<HandlerFilter>)

Set a filter closure for this handler (optional, default: no filter)

fn filter(&self) -> Option<&HandlerFilter>

Get the filter closure for this handler (optional)

fn handle(&self, _record: &Record) -> Result<(), HandlerError>

Handle a log record

fn handle_batch(&self, records: &[Record]) -> Result<(), HandlerError>

Handle a batch of log records (optimized implementation)

fn init(&mut self) -> Result<(), HandlerError>

Lifecycle: initialize the handler

fn flush(&self) -> Result<(), HandlerError>

Lifecycle: flush the handler

fn shutdown(&mut self) -> Result<(), HandlerError>

Lifecycle: shutdown the handler