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Class `std.experimental.logger.nulllogger.NullLogger`

The NullLogger will not process any log messages.


						
				class NullLogger
				
  : Logger
				;

In case of a log message with LogLevel.fatal nothing will happen.

Constructors

Name	Description
`this` (lv)	The default constructor for the `NullLogger`.

Properties

Name	Type	Description
`fatalHandler`[get, set]	`void delegate()`	This `delegate` is called in case a log message with `LogLevel.fatal` gets logged.
`logLevel`[get, set]	`LogLevel`	The `LogLevel` determines if the log call are processed or dropped by the `Logger`. In order for the log call to be processed the `LogLevel` of the log call must be greater or equal to the `LogLevel` of the `logger`.

Methods

Name	Description
`factory` (classname)	Create instance of class specified by the fully qualified name classname. The class must either have no constructors or have a default constructor.
`forwardMsg` (payload)	This method allows forwarding log entries from one logger to another.
`log` (ll, condition, args)	This method logs data with the `LogLevel` of the used `Logger`.
`log` (ll, args)	This function logs data to the used `Logger` with a specific `LogLevel`.
`log` (condition, args)	This function logs data to the used `Logger` depending on a explicitly passed condition with the `LogLevel` of the used `Logger`.
`log` (args)	This function logs data to the used `Logger` with the `LogLevel` of the used `Logger`.
`logf` (ll, condition, msg, args)	This function logs data to the used `Logger` with a specific `LogLevel` and depending on a condition in a `printf`-style manner.
`logf` (ll, msg, args)	This function logs data to the used `Logger` with a specific `LogLevel` in a `printf`-style manner.
`logf` (condition, msg, args)	This function logs data to the used `Logger` depending on a condition with the `LogLevel` of the used `Logger` in a `printf`-style manner.
`logf` (msg, args)	This method logs data to the used `Logger` with the `LogLevel` of the this `Logger` in a `printf`-style manner.
`opCmp` (o)	Compare with another Object obj.
`opEquals` (o)	Test whether `this` is equal to `o`. The default implementation only compares by identity (using the `is` operator). Generally, overrides for `opEquals` should attempt to compare objects by their contents.
`toHash` ()	Compute hash function for Object.
`toString` ()	Convert Object to a human readable string.
`finishLogMsg` ()	Signals that the message has been written and no more calls to `logMsgPart` follow.
`logMsgPart` (msg)	Logs a part of the log message.
`writeLogMsg` (payload)	A custom logger must implement this method in order to work in a `MultiLogger` and `ArrayLogger`.

Inner structs

Name	Description
`LogEntry`	LogEntry is a aggregation combining all information associated with a log message. This aggregation will be passed to the method writeLogMsg.

Aliases

Name	Description
`critical`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`criticalf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`error`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`errorf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`fatal`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`fatalf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`info`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`infof`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`trace`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`tracef`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`warning`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.
`warningf`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.

Templates

Name	Description
`memLogFunctions`	This template provides the log functions for the `Logger` `class` with the `LogLevel` encoded in the function name.

Example

import std.experimental.logger.core : LogLevel;
auto nl1 = new NullLogger(LogLevel.all);
nl1.info("You will never read this.");
nl1.fatal("You will never read this, either and it will not throw");

API Documentation

Class `std.experimental.logger.nulllogger.NullLogger`

Constructors

Properties

Methods

Inner structs

Aliases

Templates

Example

Authors

License

API Documentation

Class std.experimental.logger.nulllogger.NullLogger

Constructors

Properties

Methods

Inner structs

Aliases

Templates

Example

Authors

License

Class `std.experimental.logger.nulllogger.NullLogger`