Apache Log4j Core 2.2 API

Core API

org.apache.logging.log4j.core

Implementation of Log4j 2.

Configuration

org.apache.logging.log4j.core.config	Configuration of Log4j 2.
org.apache.logging.log4j.core.config.json	Classes and interfaces supporting configuration of Log4j 2 with JSON.
org.apache.logging.log4j.core.config.plugins	Annotations for Log4j 2 plugins.
org.apache.logging.log4j.core.config.plugins.convert	TypeConverter plugins for converter strings into various types.
org.apache.logging.log4j.core.config.plugins.processor	Java annotation processor for pre-scanning Log4j 2 plugins.
org.apache.logging.log4j.core.config.plugins.util	Utility and manager classes for Log4j 2 plugins.
org.apache.logging.log4j.core.config.plugins.validation	Constraint validators for plugin factory methods.
org.apache.logging.log4j.core.config.plugins.validation.constraints	Validation annotations.
org.apache.logging.log4j.core.config.plugins.validation.validators	ConstraintValidator implementations for the constraint annotations.
org.apache.logging.log4j.core.config.plugins.visitors	Visitor classes for extracting values from a Configuration or Node corresponding to a plugin annotation.
org.apache.logging.log4j.core.config.status	Configuration classes for the StatusLogger API.
org.apache.logging.log4j.core.config.xml	Classes and interfaces supporting configuration of Log4j 2 with XML.
org.apache.logging.log4j.core.config.yaml	Classes and interfaces supporting configuration of Log4j 2 with YAML.
org.apache.logging.log4j.core.selector	Log4j 2 Context Selectors.

Core Plugins

org.apache.logging.log4j.core.appender	Log4j 2 Appenders.
org.apache.logging.log4j.core.appender.db	The classes in this package and sub packages provide appenders for various types of databases and methods for accessing databases.
org.apache.logging.log4j.core.appender.db.jdbc	The JDBC Appender supports writing log events to a relational database using standard JDBC connections.
org.apache.logging.log4j.core.appender.db.jpa	The JPA Appender supports writing log events to a relational database using the Java Persistence API.
org.apache.logging.log4j.core.appender.db.jpa.converter	The converters in this package implement the JPA 2.1 mechanism for converting non-standard types to and from database fields.
org.apache.logging.log4j.core.appender.mom	Message oriented middleware appenders.
org.apache.logging.log4j.core.appender.rewrite	Apache Flume Appender.
org.apache.logging.log4j.core.appender.rolling	Rolling File Appender and support classes.
org.apache.logging.log4j.core.appender.rolling.action	Support classes for the Rolling File Appender.
org.apache.logging.log4j.core.appender.routing	Apache Flume Appender.
org.apache.logging.log4j.core.filter	Log4j 2 Filter support.
org.apache.logging.log4j.core.layout	Log4j 2 Layout support.
org.apache.logging.log4j.core.lookup	Log4j 2 Lookups.
org.apache.logging.log4j.core.pattern	Provides classes implementing format specifiers in conversion patterns.

Tools

org.apache.logging.log4j.core.net	Log4j 2 network support.
org.apache.logging.log4j.core.net.mom.jms	Supporting network code for JMS appenders.
org.apache.logging.log4j.core.net.server	Standalone server classes for consuming log events over a network.
org.apache.logging.log4j.core.net.ssl	Log4j 2 SSL support
org.apache.logging.log4j.core.tools	Log4j 2 command line tools.

Internals

org.apache.logging.log4j.core.async	Provides Asynchronous Logger classes and interfaces for low-latency logging.
org.apache.logging.log4j.core.impl	Log4j 2 private implementation classes.
org.apache.logging.log4j.core.jackson	Classes and interfaces for serializing and deserializing Log4j 2 log events to XML and JSON using the Jackson library.
org.apache.logging.log4j.core.jmx	Log4j 2 JMX support.
org.apache.logging.log4j.core.osgi	Collection of OSGi-specific classes for bundles.
org.apache.logging.log4j.core.util	Log4j 2 helper classes.