Class NullLogger

  • All Implemented Interfaces:
    Logger

    public final class NullLogger
    extends java.lang.Object
    implements Logger
    The Null Logger class. This is useful for implementations where you need to provide a logger to a utility class, but do not want any output from it. It also helps when you have a utility that does not have a logger to supply.
    Version:
    CVS $Revision: 1.11 $ $Date: 2003/02/11 15:58:41 $
    Author:
    Avalon Development Team
    • Constructor Summary

      Constructors 
      Constructor Description
      NullLogger()
      Creates a new NullLogger.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void debug​(java.lang.String message)
      No-op.
      void debug​(java.lang.String message, java.lang.Throwable throwable)
      No-op.
      void error​(java.lang.String message)
      No-op.
      void error​(java.lang.String message, java.lang.Throwable throwable)
      No-op.
      void fatalError​(java.lang.String message)
      No-op.
      void fatalError​(java.lang.String message, java.lang.Throwable throwable)
      No-op.
      Logger getChildLogger​(java.lang.String name)
      Returns this NullLogger.
      void info​(java.lang.String message)
      No-op.
      void info​(java.lang.String message, java.lang.Throwable throwable)
      No-op.
      boolean isDebugEnabled()
      No-op.
      boolean isErrorEnabled()
      No-op.
      boolean isFatalErrorEnabled()
      No-op.
      boolean isInfoEnabled()
      No-op.
      boolean isWarnEnabled()
      No-op.
      void warn​(java.lang.String message)
      No-op.
      void warn​(java.lang.String message, java.lang.Throwable throwable)
      No-op.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Constructor Detail

      • NullLogger

        public NullLogger()
        Creates a new NullLogger.
    • Method Detail

      • debug

        public void debug​(java.lang.String message)
        No-op.
        Specified by:
        debug in interface Logger
        Parameters:
        message - ignored
      • debug

        public void debug​(java.lang.String message,
                          java.lang.Throwable throwable)
        No-op.
        Specified by:
        debug in interface Logger
        Parameters:
        message - ignored
        throwable - ignored
      • isDebugEnabled

        public boolean isDebugEnabled()
        No-op.
        Specified by:
        isDebugEnabled in interface Logger
        Returns:
        false
      • info

        public void info​(java.lang.String message)
        No-op.
        Specified by:
        info in interface Logger
        Parameters:
        message - ignored
      • info

        public void info​(java.lang.String message,
                         java.lang.Throwable throwable)
        No-op.
        Specified by:
        info in interface Logger
        Parameters:
        message - ignored
        throwable - ignored
      • isInfoEnabled

        public boolean isInfoEnabled()
        No-op.
        Specified by:
        isInfoEnabled in interface Logger
        Returns:
        false
      • warn

        public void warn​(java.lang.String message)
        No-op.
        Specified by:
        warn in interface Logger
        Parameters:
        message - ignored
      • warn

        public void warn​(java.lang.String message,
                         java.lang.Throwable throwable)
        No-op.
        Specified by:
        warn in interface Logger
        Parameters:
        message - ignored
        throwable - ignored
      • isWarnEnabled

        public boolean isWarnEnabled()
        No-op.
        Specified by:
        isWarnEnabled in interface Logger
        Returns:
        false
      • error

        public void error​(java.lang.String message)
        No-op.
        Specified by:
        error in interface Logger
        Parameters:
        message - ignored
      • error

        public void error​(java.lang.String message,
                          java.lang.Throwable throwable)
        No-op.
        Specified by:
        error in interface Logger
        Parameters:
        message - ignored
        throwable - ignored
      • isErrorEnabled

        public boolean isErrorEnabled()
        No-op.
        Specified by:
        isErrorEnabled in interface Logger
        Returns:
        false
      • fatalError

        public void fatalError​(java.lang.String message)
        No-op.
        Specified by:
        fatalError in interface Logger
        Parameters:
        message - ignored
      • fatalError

        public void fatalError​(java.lang.String message,
                               java.lang.Throwable throwable)
        No-op.
        Specified by:
        fatalError in interface Logger
        Parameters:
        message - ignored
        throwable - ignored
      • isFatalErrorEnabled

        public boolean isFatalErrorEnabled()
        No-op.
        Specified by:
        isFatalErrorEnabled in interface Logger
        Returns:
        false
      • getChildLogger

        public Logger getChildLogger​(java.lang.String name)
        Returns this NullLogger.
        Specified by:
        getChildLogger in interface Logger
        Parameters:
        name - ignored
        Returns:
        this NullLogger