Uses of Package
org.apache.log4j.spi

Packages that use org.apache.log4j.spi

org.apache.log4j	The main log4j package.
org.apache.log4j.helpers	This package is used internally.
org.apache.log4j.jdbc	The JDBCAppender provides for sending log events to a database.
org.apache.log4j.jmx	This package lets you manage log4j settings using JMX.
org.apache.log4j.lf5
org.apache.log4j.net	Package for remote logging.
org.apache.log4j.nt	Package for NT event 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.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

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

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

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.jmx

HierarchyEventListener
Listen to events occuring within a Hierarchy.

Classes in org.apache.log4j.spi used by org.apache.log4j.lf5

Configurator
Implemented by classes capable of configuring log4j using a URL.

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.

ThrowableInformation
ThrowableInformation is log4j's internal representation of throwables.

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

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.nt

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.or

RendererSupport

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

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.spi

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

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

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.