Appender

Base class for all Appenders. These objects are responsible for emitting messages sent to a particular logger. There may be more than one appender attached to any logger. The actual message is constructed by another class known as an EventLayout.

class Appender {

alias Mask = int;

interface Layout;

Mask mask [@property getter];

const(char)[] name [@property getter];

void append(LogEvent event);

this();

Level level [@property getter];

Level level [@property setter];

Mask register(const(char)[] tag);

Layout layout [@property setter];

Layout layout [@property getter];

Appender next [@property setter];

Appender next [@property getter];

void close();

}

Constructors

this this(): Create an Appender and default its layout to LayoutSimple.

Members

Aliases

Mask alias Mask = int: Undocumented in source.

Functions

append void append(LogEvent event): Append a message to the output.
close void close(): Close this appender. This would be used for file, sockets, and such like.
register Mask register(const(char)[] tag): Static method to return a mask for identifying the Appender. Each Appender class should have a unique fingerprint so that we can figure out which ones have been invoked for a given event. A bitmask is a simple an efficient way to do that.

Interfaces

Layout interface Layout: Interface for all logging layout instances

Properties

layout Layout layout [@property setter]: Set the current layout to be that of the argument, or the generic layout where the argument is null
layout Layout layout [@property getter]: Return the current Layout
level Level level [@property getter]: Return the current Level setting
level Level level [@property setter]: Return the current Level setting
mask Mask mask [@property getter]: Return the mask used to identify this Appender. The mask is used to figure out whether an appender has already been invoked for a particular logger.
name const(char)[] name [@property getter]: Return the name of this Appender.
next Appender next [@property setter]: Attach another appender to this one
next Appender next [@property getter]: Return the next appender in the list