org.apache.log4j
Class Category

java.lang.Object
  extended by org.apache.log4j.Category
Direct Known Subclasses:
Logger

public class Category
extends Object

This class is a minimal implementation of the original org.apache.log4j.Category class (as found in log4j 1.2) by delegation of all calls to a Logger instance.

Log4j's trace, debug(), info(), warn(), error() printing methods are directly mapped to their SLF4J equivalents. Log4j's fatal() printing method is mapped to SLF4J's error() method with a FATAL marker.

Author:
Sébastien Pennec, Ceki Gülcü

Field Summary
protected  Logger slf4jLogger
           
 
Method Summary
 void addAppender(Appender newAppender)
           
protected  String convertToString(Object message)
           
 void debug(Object message)
          Delegates to Logger.debug(String) method of SLF4J.
 void debug(Object message, Throwable t)
          Delegates to Logger.debug(String,Throwable) method in SLF4J.
 void error(Object message)
          Delegates to Logger.error(String) method in SLF4J.
 void error(Object message, Throwable t)
          Delegates to Logger.error(String,Throwable) method in SLF4J.
 void fatal(Object message)
          Delegates to Logger.error(String) method in SLF4J.
 void fatal(Object message, Throwable t)
          Delegates to Logger.error(String,Throwable) method in SLF4J.
protected  void forcedLog(String FQCN, Priority p, Object msg, Throwable t)
           
 Enumeration getAllAppenders()
           
 Level getEffectiveLevel()
          Return the level in effect for this category/logger.
static Category getInstance(Class clazz)
           
static Category getInstance(String name)
           
 Level getLevel()
          Returns the assigned Level, if any, for this Category.
 String getName()
          Returns the obvious.
 Level getPriority()
          Deprecated. Please use getLevel() instead.
 void info(Object message)
          Delegates to Logger.info(String) method in SLF4J.
 void info(Object message, Throwable t)
          Delegates to Logger.info(String,Throwable) method in SLF4J.
 boolean isDebugEnabled()
          Delegates to Logger.isDebugEnabled() method in SLF4J
 boolean isEnabledFor(Priority p)
          Determines whether the priority passed as parameter is enabled in the underlying SLF4J logger.
 boolean isErrorEnabled()
          Delegates to Logger.isErrorEnabled() method in SLF4J
 boolean isInfoEnabled()
          Delegates to Logger.isInfoEnabled() method in SLF4J
 boolean isWarnEnabled()
          Delegates tob Logger.isWarnEnabled() method in SLF4J
 void log(Priority p, Object message)
           
 void log(Priority p, Object message, Throwable t)
           
 void log(String FQCN, Priority p, Object msg, Throwable t)
           
 void setAdditivity(boolean additive)
           
 void setLevel(Level level)
           
 void warn(Object message)
          Delegates to Logger.warn(String) method in SLF4J.
 void warn(Object message, Throwable t)
          Delegates to Logger.warn(String,Throwable) method in SLF4J.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

slf4jLogger

protected Logger slf4jLogger
Method Detail

getInstance

public static Category getInstance(Class clazz)

getInstance

public static Category getInstance(String name)

getName

public String getName()
Returns the obvious.

Returns:

getAllAppenders

public Enumeration getAllAppenders()

getEffectiveLevel

public Level getEffectiveLevel()
Return the level in effect for this category/logger.

The result is computed by simulation.

Returns:

getLevel

public final Level getLevel()
Returns the assigned Level, if any, for this Category. This implementation always returns null.

Returns:
Level - the assigned Level, can be null.

getPriority

public final Level getPriority()
Deprecated. Please use getLevel() instead.


isDebugEnabled

public boolean isDebugEnabled()
Delegates to Logger.isDebugEnabled() method in SLF4J


isInfoEnabled

public boolean isInfoEnabled()
Delegates to Logger.isInfoEnabled() method in SLF4J


isWarnEnabled

public boolean isWarnEnabled()
Delegates tob Logger.isWarnEnabled() method in SLF4J


isErrorEnabled

public boolean isErrorEnabled()
Delegates to Logger.isErrorEnabled() method in SLF4J


isEnabledFor

public boolean isEnabledFor(Priority p)
Determines whether the priority passed as parameter is enabled in the underlying SLF4J logger. Each log4j priority is mapped directly to its SLF4J equivalent, except for FATAL which is mapped as ERROR.

Parameters:
p - the priority to check against
Returns:
true if this logger is enabled for the given level, false otherwise.

debug

public void debug(Object message)
Delegates to Logger.debug(String) method of SLF4J.


debug

public void debug(Object message,
                  Throwable t)
Delegates to Logger.debug(String,Throwable) method in SLF4J.


info

public void info(Object message)
Delegates to Logger.info(String) method in SLF4J.


info

public void info(Object message,
                 Throwable t)
Delegates to Logger.info(String,Throwable) method in SLF4J.


warn

public void warn(Object message)
Delegates to Logger.warn(String) method in SLF4J.


warn

public void warn(Object message,
                 Throwable t)
Delegates to Logger.warn(String,Throwable) method in SLF4J.


error

public void error(Object message)
Delegates to Logger.error(String) method in SLF4J.


error

public void error(Object message,
                  Throwable t)
Delegates to Logger.error(String,Throwable) method in SLF4J.


fatal

public void fatal(Object message)
Delegates to Logger.error(String) method in SLF4J.


fatal

public void fatal(Object message,
                  Throwable t)
Delegates to Logger.error(String,Throwable) method in SLF4J. In addition, the call is marked with a marker named "FATAL".


forcedLog

protected void forcedLog(String FQCN,
                         Priority p,
                         Object msg,
                         Throwable t)

log

public void log(String FQCN,
                Priority p,
                Object msg,
                Throwable t)

log

public void log(Priority p,
                Object message,
                Throwable t)

log

public void log(Priority p,
                Object message)

convertToString

protected final String convertToString(Object message)

setAdditivity

public void setAdditivity(boolean additive)

addAppender

public void addAppender(Appender newAppender)

setLevel

public void setLevel(Level level)


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