Class Log4JLogger

    • Field Summary

      Fields 
      Modifier and Type Field Description
      (package private) static java.lang.String FQCN
      Following the pattern discussed in pages 162 through 168 of "The complete log4j manual".
      private org.apache.log4j.Logger logger  
      private static long serialVersionUID  
      (package private) boolean traceCapable  
    • Constructor Summary

      Constructors 
      Constructor Description
      Log4JLogger​(org.apache.log4j.Logger logger)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void debug​(java.lang.String msg)
      Log a message object at level DEBUG.
      void debug​(java.lang.String format, java.lang.Object arg)
      Log a message at level DEBUG according to the specified format and argument.
      void debug​(java.lang.String format, java.lang.Object... arguments)
      Log a message at level DEBUG according to the specified format and arguments.
      void debug​(java.lang.String format, java.lang.Object argA, java.lang.Object argB)
      Log a message at level DEBUG according to the specified format and arguments.
      void debug​(java.lang.String msg, java.lang.Throwable t)
      Log an exception (throwable) at level DEBUG with an accompanying message.
      void error​(java.lang.String msg)
      Log a message object at the ERROR level.
      void error​(java.lang.String format, java.lang.Object arg)
      Log a message at the ERROR level according to the specified format and argument.
      void error​(java.lang.String format, java.lang.Object... argArray)
      Log a message at level ERROR according to the specified format and arguments.
      void error​(java.lang.String format, java.lang.Object argA, java.lang.Object argB)
      Log a message at the ERROR level according to the specified format and arguments.
      void error​(java.lang.String msg, java.lang.Throwable t)
      Log an exception (throwable) at the ERROR level with an accompanying message.
      void info​(java.lang.String msg)
      Log a message object at the INFO level.
      void info​(java.lang.String format, java.lang.Object arg)
      Log a message at level INFO according to the specified format and argument.
      void info​(java.lang.String format, java.lang.Object... argArray)
      Log a message at level INFO according to the specified format and arguments.
      void info​(java.lang.String format, java.lang.Object argA, java.lang.Object argB)
      Log a message at the INFO level according to the specified format and arguments.
      void info​(java.lang.String msg, java.lang.Throwable t)
      Log an exception (throwable) at the INFO level with an accompanying message.
      boolean isDebugEnabled()
      Is this logger instance enabled for the DEBUG level?
      boolean isErrorEnabled()
      Is this logger instance enabled for level ERROR?
      boolean isInfoEnabled()
      Is this logger instance enabled for the INFO level?
      private boolean isTraceCapable()  
      boolean isTraceEnabled()
      Is this logger instance enabled for the TRACE level?
      boolean isWarnEnabled()
      Is this logger instance enabled for the WARN level?
      void trace​(java.lang.String msg)
      Log a message object at level TRACE.
      void trace​(java.lang.String format, java.lang.Object arg)
      Log a message at level TRACE according to the specified format and argument.
      void trace​(java.lang.String format, java.lang.Object... arguments)
      Log a message at level TRACE according to the specified format and arguments.
      void trace​(java.lang.String format, java.lang.Object argA, java.lang.Object argB)
      Log a message at level TRACE according to the specified format and arguments.
      void trace​(java.lang.String msg, java.lang.Throwable t)
      Log an exception (throwable) at level TRACE with an accompanying message.
      void warn​(java.lang.String msg)
      Log a message object at the WARN level.
      void warn​(java.lang.String format, java.lang.Object arg)
      Log a message at the WARN level according to the specified format and argument.
      void warn​(java.lang.String format, java.lang.Object... argArray)
      Log a message at level WARN according to the specified format and arguments.
      void warn​(java.lang.String format, java.lang.Object argA, java.lang.Object argB)
      Log a message at the WARN level according to the specified format and arguments.
      void warn​(java.lang.String msg, java.lang.Throwable t)
      Log an exception (throwable) at the WARN level with an accompanying message.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
    • Field Detail

      • logger

        private final transient org.apache.log4j.Logger logger
      • FQCN

        static final java.lang.String FQCN
        Following the pattern discussed in pages 162 through 168 of "The complete log4j manual".
      • traceCapable

        final boolean traceCapable
    • Constructor Detail

      • Log4JLogger

        Log4JLogger​(org.apache.log4j.Logger logger)
    • Method Detail

      • isTraceCapable

        private boolean isTraceCapable()
      • isTraceEnabled

        public boolean isTraceEnabled()
        Is this logger instance enabled for the TRACE level?
        Returns:
        True if this Logger is enabled for level TRACE, false otherwise.
      • trace

        public void trace​(java.lang.String msg)
        Log a message object at level TRACE.
        Parameters:
        msg - - the message object to be logged
      • trace

        public void trace​(java.lang.String format,
                          java.lang.Object arg)
        Log a message at level TRACE according to the specified format and argument.

        This form avoids superfluous object creation when the logger is disabled for level TRACE.

        Parameters:
        format - the format string
        arg - the argument
      • trace

        public void trace​(java.lang.String format,
                          java.lang.Object argA,
                          java.lang.Object argB)
        Log a message at level TRACE according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the TRACE level.

        Parameters:
        format - the format string
        argA - the first argument
        argB - the second argument
      • trace

        public void trace​(java.lang.String format,
                          java.lang.Object... arguments)
        Log a message at level TRACE according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the TRACE level.

        Parameters:
        format - the format string
        arguments - an array of arguments
      • trace

        public void trace​(java.lang.String msg,
                          java.lang.Throwable t)
        Log an exception (throwable) at level TRACE with an accompanying message.
        Parameters:
        msg - the message accompanying the exception
        t - the exception (throwable) to log
      • isDebugEnabled

        public boolean isDebugEnabled()
        Is this logger instance enabled for the DEBUG level?
        Returns:
        True if this Logger is enabled for level DEBUG, false otherwise.
      • debug

        public void debug​(java.lang.String msg)
        Log a message object at level DEBUG.
        Parameters:
        msg - - the message object to be logged
      • debug

        public void debug​(java.lang.String format,
                          java.lang.Object arg)
        Log a message at level DEBUG according to the specified format and argument.

        This form avoids superfluous object creation when the logger is disabled for level DEBUG.

        Parameters:
        format - the format string
        arg - the argument
      • debug

        public void debug​(java.lang.String format,
                          java.lang.Object argA,
                          java.lang.Object argB)
        Log a message at level DEBUG according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the DEBUG level.

        Parameters:
        format - the format string
        argA - the first argument
        argB - the second argument
      • debug

        public void debug​(java.lang.String format,
                          java.lang.Object... arguments)
        Log a message at level DEBUG according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the DEBUG level.

        Parameters:
        format - the format string
        arguments - an array of arguments
      • debug

        public void debug​(java.lang.String msg,
                          java.lang.Throwable t)
        Log an exception (throwable) at level DEBUG with an accompanying message.
        Parameters:
        msg - the message accompanying the exception
        t - the exception (throwable) to log
      • isInfoEnabled

        public boolean isInfoEnabled()
        Is this logger instance enabled for the INFO level?
        Returns:
        True if this Logger is enabled for the INFO level, false otherwise.
      • info

        public void info​(java.lang.String msg)
        Log a message object at the INFO level.
        Parameters:
        msg - - the message object to be logged
      • info

        public void info​(java.lang.String format,
                         java.lang.Object arg)
        Log a message at level INFO according to the specified format and argument.

        This form avoids superfluous object creation when the logger is disabled for the INFO level.

        Parameters:
        format - the format string
        arg - the argument
      • info

        public void info​(java.lang.String format,
                         java.lang.Object argA,
                         java.lang.Object argB)
        Log a message at the INFO level according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the INFO level.

        Parameters:
        format - the format string
        argA - the first argument
        argB - the second argument
      • info

        public void info​(java.lang.String format,
                         java.lang.Object... argArray)
        Log a message at level INFO according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the INFO level.

        Parameters:
        format - the format string
        argArray - an array of arguments
      • info

        public void info​(java.lang.String msg,
                         java.lang.Throwable t)
        Log an exception (throwable) at the INFO level with an accompanying message.
        Parameters:
        msg - the message accompanying the exception
        t - the exception (throwable) to log
      • isWarnEnabled

        public boolean isWarnEnabled()
        Is this logger instance enabled for the WARN level?
        Returns:
        True if this Logger is enabled for the WARN level, false otherwise.
      • warn

        public void warn​(java.lang.String msg)
        Log a message object at the WARN level.
        Parameters:
        msg - - the message object to be logged
      • warn

        public void warn​(java.lang.String format,
                         java.lang.Object arg)
        Log a message at the WARN level according to the specified format and argument.

        This form avoids superfluous object creation when the logger is disabled for the WARN level.

        Parameters:
        format - the format string
        arg - the argument
      • warn

        public void warn​(java.lang.String format,
                         java.lang.Object argA,
                         java.lang.Object argB)
        Log a message at the WARN level according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the WARN level.

        Parameters:
        format - the format string
        argA - the first argument
        argB - the second argument
      • warn

        public void warn​(java.lang.String format,
                         java.lang.Object... argArray)
        Log a message at level WARN according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the WARN level.

        Parameters:
        format - the format string
        argArray - an array of arguments
      • warn

        public void warn​(java.lang.String msg,
                         java.lang.Throwable t)
        Log an exception (throwable) at the WARN level with an accompanying message.
        Parameters:
        msg - the message accompanying the exception
        t - the exception (throwable) to log
      • isErrorEnabled

        public boolean isErrorEnabled()
        Is this logger instance enabled for level ERROR?
        Returns:
        True if this Logger is enabled for level ERROR, false otherwise.
      • error

        public void error​(java.lang.String msg)
        Log a message object at the ERROR level.
        Parameters:
        msg - - the message object to be logged
      • error

        public void error​(java.lang.String format,
                          java.lang.Object arg)
        Log a message at the ERROR level according to the specified format and argument.

        This form avoids superfluous object creation when the logger is disabled for the ERROR level.

        Parameters:
        format - the format string
        arg - the argument
      • error

        public void error​(java.lang.String format,
                          java.lang.Object argA,
                          java.lang.Object argB)
        Log a message at the ERROR level according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the ERROR level.

        Parameters:
        format - the format string
        argA - the first argument
        argB - the second argument
      • error

        public void error​(java.lang.String format,
                          java.lang.Object... argArray)
        Log a message at level ERROR according to the specified format and arguments.

        This form avoids superfluous object creation when the logger is disabled for the ERROR level.

        Parameters:
        format - the format string
        argArray - an array of arguments
      • error

        public void error​(java.lang.String msg,
                          java.lang.Throwable t)
        Log an exception (throwable) at the ERROR level with an accompanying message.
        Parameters:
        msg - the message accompanying the exception
        t - the exception (throwable) to log