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Java Source Code / Java Documentation » Web Server » Rimfaxe Web Server » org.apache.catalina 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.catalina.Logger

All known Subclasses:   org.apache.catalina.logger.LoggerBase,
Logger
public interface Logger (Code)
A Logger is a generic interface for the message and exception logging methods of the ServletContext interface. Loggers can be attached at any Container level, but will typically only be attached to a Context, or higher level, Container.
author:
   Craig R. McClanahan
version:
   $Revision: 1.3 $ $Date: 2001/07/22 20:13:30 $


Field Summary
final public static  intDEBUG
    
final public static  intERROR
    
final public static  intFATAL
     Verbosity level constants for log messages that may be filtered by the underlying logger.
final public static  intINFORMATION
    
final public static  intWARNING
    


Method Summary
public  voidaddPropertyChangeListener(PropertyChangeListener listener)
     Add a property change listener to this component.
public  ContainergetContainer()
     Return the Container with which this Logger has been associated.
public  StringgetInfo()
     Return descriptive information about this Logger implementation and the corresponding version number, in the format <description>/<version>.
public  intgetVerbosity()
     Return the verbosity level of this logger.
public  voidlog(String message)
     Writes the specified message to a servlet log file, usually an event log.
public  voidlog(Exception exception, String msg)
     Writes the specified exception, and message, to a servlet log file. The implementation of this method should call log(msg, exception) instead.
public  voidlog(String message, Throwable throwable)
     Writes an explanatory message and a stack trace for a given Throwable exception to the servlet log file.
public  voidlog(String message, int verbosity)
     Writes the specified message to the servlet log file, usually an event log, if the logger is set to a verbosity level equal to or higher than the specified value for this message.
public  voidlog(String message, Throwable throwable, int verbosity)
     Writes the specified message and exception to the servlet log file, usually an event log, if the logger is set to a verbosity level equal to or higher than the specified value for this message.
public  voidremovePropertyChangeListener(PropertyChangeListener listener)
     Remove a property change listener from this component.
public  voidsetContainer(Container container)
     Set the Container with which this Logger has been associated.
public  voidsetVerbosity(int verbosity)
     Set the verbosity level of this logger.

Field Detail
DEBUG
final public static int DEBUG(Code)



ERROR
final public static int ERROR(Code)



FATAL
final public static int FATAL(Code)
Verbosity level constants for log messages that may be filtered by the underlying logger.



INFORMATION
final public static int INFORMATION(Code)



WARNING
final public static int WARNING(Code)





Method Detail
addPropertyChangeListener
public void addPropertyChangeListener(PropertyChangeListener listener)(Code)
Add a property change listener to this component.
Parameters:
  listener - The listener to add



getContainer
public Container getContainer()(Code)
Return the Container with which this Logger has been associated.



getInfo
public String getInfo()(Code)
Return descriptive information about this Logger implementation and the corresponding version number, in the format <description>/<version>.



getVerbosity
public int getVerbosity()(Code)
Return the verbosity level of this logger. Messages logged with a higher verbosity than this level will be silently ignored.



log
public void log(String message)(Code)
Writes the specified message to a servlet log file, usually an event log. The name and type of the servlet log is specific to the servlet container. This message will be logged unconditionally.
Parameters:
  message - A String specifying the message to bewritten to the log file



log
public void log(Exception exception, String msg)(Code)
Writes the specified exception, and message, to a servlet log file. The implementation of this method should call log(msg, exception) instead. This method is deprecated in the ServletContext interface, but not deprecated here to avoid many useless compiler warnings. This message will be logged unconditionally.
Parameters:
  exception - An Exception to be reported
Parameters:
  msg - The associated message string



log
public void log(String message, Throwable throwable)(Code)
Writes an explanatory message and a stack trace for a given Throwable exception to the servlet log file. The name and type of the servlet log file is specific to the servlet container, usually an event log. This message will be logged unconditionally.
Parameters:
  message - A String that describes the error orexception
Parameters:
  throwable - The Throwable error or exception



log
public void log(String message, int verbosity)(Code)
Writes the specified message to the servlet log file, usually an event log, if the logger is set to a verbosity level equal to or higher than the specified value for this message.
Parameters:
  message - A String specifying the message to bewritten to the log file
Parameters:
  verbosity - Verbosity level of this message



log
public void log(String message, Throwable throwable, int verbosity)(Code)
Writes the specified message and exception to the servlet log file, usually an event log, if the logger is set to a verbosity level equal to or higher than the specified value for this message.
Parameters:
  message - A String that describes the error orexception
Parameters:
  throwable - The Throwable error or exception
Parameters:
  verbosity - Verbosity level of this message



removePropertyChangeListener
public void removePropertyChangeListener(PropertyChangeListener listener)(Code)
Remove a property change listener from this component.
Parameters:
  listener - The listener to remove



setContainer
public void setContainer(Container container)(Code)
Set the Container with which this Logger has been associated.
Parameters:
  container - The associated Container



setVerbosity
public void setVerbosity(int verbosity)(Code)
Set the verbosity level of this logger. Messages logged with a higher verbosity than this level will be silently ignored.
Parameters:
  verbosity - The new verbosity level



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