Public Member Functions

virtual ~Appender ()
Destructor for Appender. int append (const LoggingEvent &event)
Log in Appender specific way. virtual bool reopen (void)
Reopens the output destination of this Appender, e.g. virtual void close (void)=0
Release any resources allocated within the appender such as file handles, network connections, etc. virtual bool requires_layout (void) const =0
Check if the appender uses a layout. virtual void set_layout (Layout *layout=0)=0
Change the layout. const std::string & get_name (void) const
Returns this appender name. virtual bool is_valid (void) const
Check if the appender is valid (for instance the underlying connection is ok) This default implementation always return true.

Protected Member Functions

Appender (const std::string &name)
Constructor for Appender. virtual void level_changed (Level::Value new_level)
Inform an appender that its Logger's logging level has changed. virtual int _append (const LoggingEvent &event)=0
Log in Appender specific way.

Friends

class Logger

log4tango::Appender::Appender (const std::string & name) [protected]

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

Parameters

log4tango::Appender::~Appender () [virtual]

Destructor for Appender.

virtual int log4tango::Appender::_append (const LoggingEvent & event) [protected], [pure virtual]

Log in Appender specific way. Subclasses of Appender should implement this method to perform actual logging.

Parameters

Implemented in log4tango::FileAppender, log4tango::OstreamAppender, and log4tango::RollingFileAppender.

int log4tango::Appender::append (const LoggingEvent & event) [inline]

Log in Appender specific way. Returns -1 on error, 0 otherwise.

Parameters

virtual void log4tango::Appender::close (void) [pure virtual]

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

Implemented in log4tango::OstreamAppender, and log4tango::FileAppender.

const std::string & log4tango::Appender::get_name (void) const [inline]

Returns this appender name.

bool log4tango::Appender::is_valid (void) const [virtual]

Check if the appender is valid (for instance the underlying connection is ok) This default implementation always return true. Overload to define your own behaviour.

Returns

Reimplemented in log4tango::FileAppender.

void log4tango::Appender::level_changed (Level::Value new_level) [protected], [virtual]

Inform an appender that its Logger's logging level has changed. The default implementation does nothing.

Parameters

bool log4tango::Appender::reopen (void) [virtual]

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

Returns

Reimplemented in log4tango::OstreamAppender, and log4tango::FileAppender.

virtual bool log4tango::Appender::requires_layout (void) const [pure virtual]

Check if the appender uses a layout.

Returns

Implemented in log4tango::LayoutAppender.

virtual void log4tango::Appender::set_layout (Layout * layout = 0) [pure virtual]

Change the layout.

Implemented in log4tango::LayoutAppender.

friend class Logger [friend]