Uses of Interface
org.apache.log4j.spi.OptionHandler

Packages that use OptionHandler

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.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.

Uses of OptionHandler in org.apache.log4j

Classes in org.apache.log4j that implement OptionHandler

Modifier and Type	Class and Description
class	AppenderSkeleton Abstract superclass of the other appenders in the package.
class	AsyncAppender The AsyncAppender lets users log events asynchronously.
class	ConsoleAppender ConsoleAppender appends log events to System.out or System.err using a layout specified by the user.
class	DailyRollingFileAppender DailyRollingFileAppender extends FileAppender so that the underlying file is rolled over at a user chosen frequency.
class	EnhancedPatternLayout This class is an enhanced version of org.apache.log4j.PatternLayout which was originally developed as part of the abandoned log4j 1.3 effort and has been available in the extras companion.
class	FileAppender FileAppender appends log events to a file.
class	HTMLLayout This layout outputs events in a HTML table.
class	Layout Extend this abstract class to create your own log layout format.
class	PatternLayout A flexible layout configurable with pattern string.
class	RollingFileAppender RollingFileAppender extends FileAppender to backup the log files when they reach a certain size.
class	SimpleLayout SimpleLayout consists of the level of the log statement, followed by " - " and then the log message itself.
class	TTCCLayout TTCC layout format consists of time, thread, category and nested diagnostic context information, hence the name.
class	WriterAppender WriterAppender appends log events to a Writer or an OutputStream depending on the user's choice.

Uses of OptionHandler in org.apache.log4j.helpers

Classes in org.apache.log4j.helpers that implement OptionHandler

Modifier and Type	Class and Description
class	DateLayout This abstract layout takes care of all the date related options and formatting work.
class	OnlyOnceErrorHandler The OnlyOnceErrorHandler implements log4j's default error handling policy which consists of emitting a message for the first error in an appender and ignoring all following errors.

Uses of OptionHandler in org.apache.log4j.jdbc

Classes in org.apache.log4j.jdbc that implement OptionHandler

Modifier and Type	Class and Description
class	JDBCAppender The JDBCAppender provides for sending log events to a database.

Uses of OptionHandler in org.apache.log4j.net

Classes in org.apache.log4j.net that implement OptionHandler

Modifier and Type	Class and Description
class	JMSAppender A simple appender that publishes events to a JMS Topic.
class	SMTPAppender Send an e-mail when a specific logging event occurs, typically on errors or fatal errors.
class	SocketAppender Sends LoggingEvent objects to a remote a log server, usually a SocketNode.
class	SocketHubAppender Sends LoggingEvent objects to a set of remote log servers, usually a SocketNodes.
class	SyslogAppender Use SyslogAppender to send log messages to a remote syslog daemon.
class	TelnetAppender The TelnetAppender is a log4j appender that specializes in writing to a read-only socket.

Uses of OptionHandler in org.apache.log4j.rewrite

Classes in org.apache.log4j.rewrite that implement OptionHandler

Modifier and Type	Class and Description
class	RewriteAppender This appender forwards a logging request to another appender after possibly rewriting the logging event.

Uses of OptionHandler in org.apache.log4j.spi

Subinterfaces of OptionHandler in org.apache.log4j.spi

Modifier and Type	Interface and Description
interface	ErrorHandler Appenders may delegate their error handling to ErrorHandlers.

Classes in org.apache.log4j.spi that implement OptionHandler

Modifier and Type	Class and Description
class	Filter Users should extend this class to implement customized logging event filtering.

Uses of OptionHandler in org.apache.log4j.varia

Classes in org.apache.log4j.varia that implement OptionHandler

Modifier and Type	Class and Description
class	DenyAllFilter This filter drops all logging events.
class	ExternallyRolledFileAppender This appender listens on a socket on the port specified by the Port property for a "RollOver" message.
class	FallbackErrorHandler The FallbackErrorHandler implements the ErrorHandler interface such that a secondary appender may be specified.
class	LevelMatchFilter This is a very simple filter based on level matching.
class	LevelRangeFilter This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range.
class	NullAppender A NullAppender merely exists, it never outputs a message to any device.
class	StringMatchFilter This is a very simple filter based on string matching.

Uses of OptionHandler in org.apache.log4j.xml

Classes in org.apache.log4j.xml that implement OptionHandler

Modifier and Type	Class and Description
class	XMLLayout The output of the XMLLayout consists of a series of log4j:event elements as defined in the log4j.dtd.