| 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: 1.2 $ $Date: 2004/02/27 14:58:38 $ |
| Field Summary | |
| final public static int | DEBUG
| | final public static int | ERROR
| | final public static int | FATAL
Verbosity level constants for log messages that may be filtered
by the underlying logger. | | final public static int | INFORMATION
| | final public static int | WARNING
|
| Method Summary | |
| public void | addPropertyChangeListener(PropertyChangeListener listener)
Add a property change listener to this component. | | public Container | getContainer()
Return the Container with which this Logger has been associated. | | public String | getInfo()
Return descriptive information about this Logger implementation and
the corresponding version number, in the format
<description>/<version>. | | public int | getVerbosity()
Return the verbosity level of this logger. | | public void | log(String message)
Writes the specified message to a servlet log file, usually an event
log. | | public void | log(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 void | log(String message, Throwable throwable)
Writes an explanatory message and a stack trace for a given
Throwable exception to the servlet log file. | | public void | log(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 void | log(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 void | removePropertyChangeListener(PropertyChangeListener listener)
Remove a property change listener from this component. | | public void | setContainer(Container container)
Set the Container with which this Logger has been associated. | | public void | setVerbosity(int verbosity)
Set the verbosity level of this logger. |
| 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) | | |
| 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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