Uses of Package
org.apache.log4j.spi

Packages that use org.apache.log4j.spi

Package	Description
org.apache.log4j	The main log4j package.
org.apache.log4j.helpers	This package is used internally.
org.apache.log4j.jdbc
org.apache.log4j.net	Package for remote logging.
org.apache.log4j.or	ObjectRenders are resposible for rendering messages depending on their class type.
org.apache.log4j.pattern	Provides classes implementing format specifiers in conversion patterns.
org.apache.log4j.rewrite
org.apache.log4j.spi	Contains part of the System Programming Interface (SPI) needed to extend log4j.
org.apache.log4j.varia	Contains various appenders, filters and other odds and ends.
org.apache.log4j.xml	XML based components.

Classes in org.apache.log4j.spi used by org.apache.log4j

Class and Description
AppenderAttachable Interface for attaching appenders to objects.
Configurator Implemented by classes capable of configuring log4j using a URL.
ErrorHandler Appenders may delegate their error handling to ErrorHandlers.
Filter Users should extend this class to implement customized logging event filtering.
HierarchyEventListener Listen to events occuring within a Hierarchy.
LoggerFactory Implement this interface to create new instances of Logger or a sub-class of Logger.
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.
RendererSupport
RepositorySelector The LogManager uses one (and only one) RepositorySelector implementation to select the LoggerRepository for a particular application context.
ThrowableRenderer Implemented by classes that render instances of java.lang.Throwable (exceptions and errors) into a string representation.
ThrowableRendererSupport Implemented by logger repositories that support configurable rendering of Throwables.

Classes in org.apache.log4j.spi used by org.apache.log4j.helpers

Class and Description
AppenderAttachable Interface for attaching appenders to objects.
ErrorHandler Appenders may delegate their error handling to ErrorHandlers.
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.

Classes in org.apache.log4j.spi used by org.apache.log4j.jdbc

Class and Description
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.

Classes in org.apache.log4j.spi used by org.apache.log4j.net

Class and Description
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.
TriggeringEventEvaluator Implementions of this interface allow certain appenders to decide when to perform an appender specific action.

Classes in org.apache.log4j.spi used by org.apache.log4j.or

Class and Description
RendererSupport

Classes in org.apache.log4j.spi used by org.apache.log4j.pattern

Class and Description
LocationInfo The internal representation of caller location information.
LoggingEvent The internal representation of logging events.
ThrowableInformation ThrowableInformation is log4j's internal representation of throwables.

Classes in org.apache.log4j.spi used by org.apache.log4j.rewrite

Class and Description
AppenderAttachable Interface for attaching appenders to objects.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.

Classes in org.apache.log4j.spi used by org.apache.log4j.spi

Class and Description
AppenderAttachable Interface for attaching appenders to objects.
Filter Users should extend this class to implement customized logging event filtering.
HierarchyEventListener Listen to events occuring within a Hierarchy.
LocationInfo The internal representation of caller location information.
LoggerFactory Implement this interface to create new instances of Logger or a sub-class of Logger.
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
NOPLoggerRepository No-operation implementation of LoggerRepository which is used when LogManager.repositorySelector is erroneously nulled during class reloading.
OptionHandler A string based interface to configure package components.
RepositorySelector The LogManager uses one (and only one) RepositorySelector implementation to select the LoggerRepository for a particular application context.
ThrowableInformation ThrowableInformation is log4j's internal representation of throwables.
ThrowableRenderer Implemented by classes that render instances of java.lang.Throwable (exceptions and errors) into a string representation.

Classes in org.apache.log4j.spi used by org.apache.log4j.varia

Class and Description
Configurator Implemented by classes capable of configuring log4j using a URL.
ErrorHandler Appenders may delegate their error handling to ErrorHandlers.
Filter Users should extend this class to implement customized logging event filtering.
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.

Classes in org.apache.log4j.spi used by org.apache.log4j.xml

Class and Description
Configurator Implemented by classes capable of configuring log4j using a URL.
LoggerFactory Implement this interface to create new instances of Logger or a sub-class of Logger.
LoggerRepository A LoggerRepository is used to create and retrieve Loggers.
LoggingEvent The internal representation of logging events.
OptionHandler A string based interface to configure package components.
ThrowableRenderer Implemented by classes that render instances of java.lang.Throwable (exceptions and errors) into a string representation.