Package org.apache.avalon.framework.logger

Class NullLogger

java.lang.Object
org.apache.avalon.framework.logger.NullLogger
All Implemented Interfaces:
Logger
public final class NullLogger extends 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: 1.13 $ $Date: 2004/02/11 14:34:26 $
Author:
Avalon Development Team

  • Constructor Details

    • NullLogger

      public NullLogger()
      Creates a new NullLogger.

  • Method Details

    • debug

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

    • debug

      public void debug(String message, 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(String message)
      No-op.
      Specified by:
      info in interface Logger
      Parameters:
      message - ignored

    • info

      public void info(String message, 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(String message)
      No-op.
      Specified by:
      warn in interface Logger
      Parameters:
      message - ignored

    • warn

      public void warn(String message, 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(String message)
      No-op.
      Specified by:
      error in interface Logger
      Parameters:
      message - ignored

    • error

      public void error(String message, 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(String message)
      No-op.
      Specified by:
      fatalError in interface Logger
      Parameters:
      message - ignored

    • fatalError

      public void fatalError(String message, 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(String name)
      Returns this NullLogger.
      Specified by:
      getChildLogger in interface Logger
      Parameters:
      name - ignored
      Returns:
      this NullLogger