Package org.apache.logging.log4j

@Export @Version("2.20.2") package org.apache.logging.log4j

Public API for Log4j 2.

The main entry point into Log4j is the LogManager class which can be used to obtain Logger objects, the current LoggerContext, a new LoggerContext, and the current LoggerContextFactory.

Marker objects can be obtained through the MarkerManager. The MDC (Mapped Diagnostic Context) can be used through the ThreadContext class.

See Also:

• Log4j 2 API manual

Related Packages

Package	Description
org.apache.logging.log4j.message	Public Message Types used for Log4j 2.
org.apache.logging.log4j.simple	Simple logging implementation.
org.apache.logging.log4j.spi	Internal interfaces and classes to be used by authors of logging implementations or for internal use by API classes.
org.apache.logging.log4j.status	Status API for Log4j 2.
org.apache.logging.log4j.util	Internal utility classes for the Log4j 2 API.

Class	Description
BridgeAware	Extended interface to allow bridges between logging systems to convey the correct location information.
CloseableThreadContext	Adds entries to the stack or map and them removes them when the object is closed, e.g.
CloseableThreadContext.Instance
EventLogger	Deprecated. Deprecated since 2.24.0.
Level	Levels used for identifying the severity of an event.
LogBuilder	Interface for constructing log events before logging them.
Logger	This is the central interface in the log4j package.
LoggingException	Exception thrown when an error occurs while logging.
LogManager	The anchor point for the Log4j logging system.
Marker	Markers are objects that are used to add easily filterable information to log messages.
MarkerManager	Applications create Markers by using the Marker Manager.
MarkerManager.Log4jMarker	Consider this class private, it is only public to satisfy Jackson for XML and JSON IO.
ThreadContext	The ThreadContext allows applications to store information either in a Map or a Stack.
ThreadContext.ContextStack	The ThreadContext Stack interface.