Package org.apache.log4j

Interface ULogger

  • All Known Implementing Classes:
    Log4JULogger, NOPULogger, SimpleULogger
    public interface ULogger
    A proxy for org.slf4j.ULogger. In slf4j implementing builds, this interface will extend org.slf4j.ULogger and add no additional methods.
    Author:
    Ceki Gülcü, Curt Arnold

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void debug​(Object msg)
      Log a message object with the DEBUG level.
      void debug​(Object parameterizedMsg, Object param1)
      Log a parameterized message object at the DEBUG level.
      void debug​(Object msg, Throwable t)
      Log a message object with the DEBUG level including the stack trace of the Throwablet passed as parameter.
      void debug​(String parameterizedMsg, Object param1, Object param2)
      Log a parameterized message object at the DEBUG level.
      void error​(Object msg)
      Log a message object with the ERROR level.
      void error​(Object parameterizedMsg, Object param1)
      Log a parameterized message object at the ERROR level.
      void error​(Object msg, Throwable t)
      Log a message object with the ERROR level including the stack trace of the Throwablet passed as parameter.
      void error​(String parameterizedMsg, Object param1, Object param2)
      Log a parameterized message object at the ERROR level.
      void info​(Object msg)
      Log a message object with the INFO level.
      void info​(Object parameterizedMsg, Object param1)
      Log a parameterized message object at the INFO level.
      void info​(Object msg, Throwable t)
      Log a message object with the INFO level including the stack trace of the Throwablet passed as parameter.
      void info​(String parameterizedMsg, Object param1, Object param2)
      Log a parameterized message object at the INFO level.
      boolean isDebugEnabled()
      Is the logger instance enabled for the DEBUG level?
      boolean isErrorEnabled()
      Is the logger instance enabled for the ERROR level?
      boolean isInfoEnabled()
      Is the logger instance enabled for the INFO level?
      boolean isWarnEnabled()
      Is the logger instance enabled for the WARN level?
      void warn​(Object msg)
      Log a message object with the WARN level.
      void warn​(Object parameterizedMsg, Object param1)
      Log a parameterized message object at the WARN level.
      void warn​(Object msg, Throwable t)
      Log a message object with the WARN level including the stack trace of the Throwablet passed as parameter.
      void warn​(String parameterizedMsg, Object param1, Object param2)
      Log a parameterized message object at the WARN level.

    • Method Detail

      • isDebugEnabled

        boolean isDebugEnabled()
        Is the logger instance enabled for the DEBUG level?
        Returns:
        true if debug is enabled.

      • debug

        void debug​(Object msg)
        Log a message object with the DEBUG level.
        Parameters:
        msg - - the message object to be logged

      • debug

        void debug​(Object parameterizedMsg,
           Object param1)
        Log a parameterized message object at the DEBUG level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the parameter

      • debug

        void debug​(String parameterizedMsg,
           Object param1,
           Object param2)
        Log a parameterized message object at the DEBUG level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the first parameter
        param2 - - the second parameter

      • debug

        void debug​(Object msg,
           Throwable t)
        Log a message object with the DEBUG level including the stack trace of the Throwablet passed as parameter.
        Parameters:
        msg - the message object to log.
        t - the exception to log, including its stack trace.

      • isInfoEnabled

        boolean isInfoEnabled()
        Is the logger instance enabled for the INFO level?
        Returns:
        true if debug is enabled.

      • info

        void info​(Object msg)
        Log a message object with the INFO level.
        Parameters:
        msg - - the message object to be logged

      • info

        void info​(Object parameterizedMsg,
          Object param1)
        Log a parameterized message object at the INFO level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the parameter

      • info

        void info​(String parameterizedMsg,
          Object param1,
          Object param2)
        Log a parameterized message object at the INFO level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the first parameter
        param2 - - the second parameter

      • info

        void info​(Object msg,
          Throwable t)
        Log a message object with the INFO level including the stack trace of the Throwablet passed as parameter.
        Parameters:
        msg - the message object to log.
        t - the exception to log, including its stack trace.

      • isWarnEnabled

        boolean isWarnEnabled()
        Is the logger instance enabled for the WARN level?
        Returns:
        true if debug is enabled.

      • warn

        void warn​(Object msg)
        Log a message object with the WARN level.
        Parameters:
        msg - - the message object to be logged

      • warn

        void warn​(Object parameterizedMsg,
          Object param1)
        Log a parameterized message object at the WARN level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the parameter

      • warn

        void warn​(String parameterizedMsg,
          Object param1,
          Object param2)
        Log a parameterized message object at the WARN level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the first parameter
        param2 - - the second parameter

      • warn

        void warn​(Object msg,
          Throwable t)
        Log a message object with the WARN level including the stack trace of the Throwablet passed as parameter.
        Parameters:
        msg - the message object to log.
        t - the exception to log, including its stack trace.

      • isErrorEnabled

        boolean isErrorEnabled()
        Is the logger instance enabled for the ERROR level?
        Returns:
        true if debug is enabled.

      • error

        void error​(Object msg)
        Log a message object with the ERROR level.
        Parameters:
        msg - - the message object to be logged

      • error

        void error​(Object parameterizedMsg,
           Object param1)
        Log a parameterized message object at the ERROR level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the parameter

      • error

        void error​(String parameterizedMsg,
           Object param1,
           Object param2)
        Log a parameterized message object at the ERROR level.

        This form is useful in avoiding the superflous object creation problem when invoking this method while it is disabled.

        Parameters:
        parameterizedMsg - - the parameterized message object
        param1 - - the first parameter
        param2 - - the second parameter

      • error

        void error​(Object msg,
           Throwable t)
        Log a message object with the ERROR level including the stack trace of the Throwablet passed as parameter.
        Parameters:
        msg - the message object to log.
        t - the exception to log, including its stack trace.