log4cpp::Appender (3) - Linux Manuals

NAME

log4cpp::Appender -

Implement this interface for your own strategies for printing log statements.

SYNOPSIS

#include <Appender.hh>

Inherited by log4cpp::AppenderSkeleton.

Public Member Functions

virtual ~Appender ()
Destructor for Appender.
virtual void doAppend (const LoggingEvent &event)=0
Log in Appender specific way.
virtual bool reopen ()=0
Reopens the output destination of this Appender, e.g.
virtual void close ()=0
Release any resources allocated within the appender such as file handles, network connections, etc.
virtual bool requiresLayout () const =0
Check if the appender uses a layout.
virtual void setLayout (Layout *layout)=0
Set the Layout for this appender.
const std::string & getName () const
Get the name of this appender.
virtual void setThreshold (Priority::Value priority)=0
Set the threshold priority of this Appender.
virtual Priority::Value getThreshold ()=0
Get the threshold priority of this Appender.
virtual void setFilter (Filter *filter)=0
Set a Filter for this appender.
virtual Filter * getFilter ()=0
Get the Filter for this appender.

Static Public Member Functions

static Appender * getAppender (const std::string &name)
Get a pointer to an exitsing Appender.
static bool reopenAll ()
Call reopen() on all existing Appenders.
static void closeAll ()
Call reopen() on all existing Appenders.

Protected Member Functions

Appender (const std::string &name)
Constructor for Appender.

Detailed Description

Implement this interface for your own strategies for printing log statements.

Constructor & Destructor Documentation

log4cpp::Appender::Appender (const std::string &name) [protected]

Constructor for Appender. Will only be used in getAppender() (and in derived classes of course).

Parameters:

name The name of this Appender.

log4cpp::Appender::~Appender () [virtual]

Destructor for Appender.

Member Function Documentation

virtual void log4cpp::Appender::close () [pure virtual]

Release any resources allocated within the appender such as file handles, network connections, etc.

Implemented in log4cpp::RemoteSyslogAppender, log4cpp::NTEventLogAppender, log4cpp::AppenderSkeleton, log4cpp::SyslogAppender, log4cpp::FileAppender, log4cpp::IdsaAppender, log4cpp::Win32DebugAppender, log4cpp::StringQueueAppender, log4cpp::AbortAppender, log4cpp::OstreamAppender, and log4cpp::BufferingAppender.

void log4cpp::Appender::closeAll () [static]

Call reopen() on all existing Appenders.

Returns:

true if all Appenders returned true on their reopen() call.

virtual void log4cpp::Appender::doAppend (const LoggingEvent &event) [pure virtual]

Log in Appender specific way.

Parameters:

event The LoggingEvent to log.

Implemented in log4cpp::AppenderSkeleton.

Appender * log4cpp::Appender::getAppender (const std::string &name) [static]

Get a pointer to an exitsing Appender.

Parameters:

name The name of the Appender to return.

Returns:

a pointer to an existing Appender, or NULL if no appender with the specfied name exists.

virtual Filter* log4cpp::Appender::getFilter () [pure virtual]

Get the Filter for this appender.

Returns:

the filter, or NULL if no filter has been set.

Implemented in log4cpp::AppenderSkeleton.

const std::string& log4cpp::Appender::getName () const [inline]

Get the name of this appender. The name identifies the appender.

Returns:

the name of the appender.

virtual Priority::Value log4cpp::Appender::getThreshold () [pure virtual]

Get the threshold priority of this Appender.

Returns:

the threshold

Implemented in log4cpp::AppenderSkeleton.

virtual bool log4cpp::Appender::reopen () [pure virtual]

Reopens the output destination of this Appender, e.g. the logfile or TCP socket.

Returns:

false if an error occured during reopening, true otherwise.

Implemented in log4cpp::RemoteSyslogAppender, log4cpp::NTEventLogAppender, log4cpp::SyslogAppender, log4cpp::AppenderSkeleton, log4cpp::FileAppender, log4cpp::IdsaAppender, log4cpp::StringQueueAppender, log4cpp::AbortAppender, and log4cpp::OstreamAppender.

bool log4cpp::Appender::reopenAll () [static]

Call reopen() on all existing Appenders.

Returns:

true if all Appenders returned true on their reopen() call.

virtual bool log4cpp::Appender::requiresLayout () const [pure virtual]

Check if the appender uses a layout.

Returns:

true if the appender implementation requires a layout.

Implemented in log4cpp::NTEventLogAppender, log4cpp::AppenderSkeleton, log4cpp::IdsaAppender, log4cpp::LayoutAppender, and log4cpp::AbortAppender.

virtual void log4cpp::Appender::setFilter (Filter *filter) [pure virtual]

Set a Filter for this appender.

Implemented in log4cpp::AppenderSkeleton.

virtual void log4cpp::Appender::setLayout (Layout *layout) [pure virtual]

Set the Layout for this appender.

Parameters:

layout The layout to use.

Implemented in log4cpp::NTEventLogAppender, log4cpp::AppenderSkeleton, log4cpp::IdsaAppender, log4cpp::AbortAppender, and log4cpp::LayoutAppender.

virtual void log4cpp::Appender::setThreshold (Priority::Valuepriority) [pure virtual]

Set the threshold priority of this Appender. The Appender will not appender LoggingEvents with a priority lower than the threshold. Use Priority::NOTSET to disable threshold checking.

Parameters:

priority The priority to set.

Implemented in log4cpp::AppenderSkeleton.

Author

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