org.apache.avalon.framework.logger
Class AbstractLogEnabled

java.lang.Object
  org.apache.avalon.framework.logger.AbstractLogEnabled

All Implemented Interfaces:

LogEnabled

public abstract class AbstractLogEnabled

extends java.lang.Object

implements LogEnabled

Utility class to allow easy construction of components that will perform logging.

Version:

CVS $Revision: 1.4 $ $Date: 2004/02/11 14:34:25 $

Author:

Avalon Development Team

Constructor Summary

AbstractLogEnabled()

Method Summary

void	enableLogging(Logger logger) Set the components logger.
protected Logger	getLogger() Helper method to allow sub-classes to aquire logger.
protected void	setupLogger(java.lang.Object component) Helper method to setup other components with same logger.
protected void	setupLogger(java.lang.Object component, Logger logger) Helper method to setup other components with logger.
protected void	setupLogger(java.lang.Object component, java.lang.String subCategory) Helper method to setup other components with logger.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractLogEnabled

public AbstractLogEnabled()

Method Detail

enableLogging

public void enableLogging(Logger logger)

Set the components logger.

Specified by:

enableLogging in interface LogEnabled

Parameters:

logger - the logger

getLogger

protected final Logger getLogger()

Helper method to allow sub-classes to aquire logger. This method exists rather than exposing a member variable because it protects other users against future changes. It also means they do not have to use our naming convention.

There is no performance penalty as this is a final method and will be inlined by the JVM.

Returns:

the Logger

setupLogger

protected void setupLogger(java.lang.Object component)

Helper method to setup other components with same logger.

Parameters:

component - the component to pass logger object to

setupLogger

protected void setupLogger(java.lang.Object component,
                           java.lang.String subCategory)

Helper method to setup other components with logger. The logger has the subcategory of this components logger.

Parameters:

component - the component to pass logger object to

subCategory - the subcategory to use (may be null)

setupLogger

protected void setupLogger(java.lang.Object component,
                           Logger logger)

Helper method to setup other components with logger.

Parameters:

component - the component to pass logger object to

logger - the Logger