public Log4jFactory() 
{
        super();
}

 public Object getAttribute(String name) 
{
        return (attributes.get(name));
}

Return the configuration attribute with the specified name (if any), or null if there is no such attribute.

 public String[] getAttributeNames() 
{
        Vector names = new Vector();
        Enumeration keys = attributes.keys();
        while (keys.hasMoreElements()) {
            names.addElement((String) keys.nextElement());
        }
        String results[] = new String[names.size()];
        for (int i = 0; i <  results.length; i++) {
            results[i] = (String) names.elementAt(i);
        }
        return (results);
}

Return an array containing the names of all currently defined configuration attributes. If there are no such attributes, a zero length array is returned.

 public Log getInstance(Class clazz) throws LogConfigurationException 
{
        Log instance = (Log) instances.get(clazz);
        if( instance != null )
            return instance;
        instance=new Log4JLogger( Logger.getLogger( clazz ));
        instances.put( clazz, instance );
        return instance;
}

Convenience method to derive a name from the specified class and call getInstance(String) with it.

 public Log getInstance(String name) throws LogConfigurationException 
{
        Log instance = (Log) instances.get(name);
        if( instance != null )
            return instance;
        instance=new Log4JLogger( Logger.getLogger( name ));
        instances.put( name, instance );
        return instance;
}

 public  void release() 
{
        instances.clear();
        // what's the log4j mechanism to cleanup ???
}

Release any internal references to previously created Log instances returned by this factory. This is useful in environments like servlet containers, which implement application reloading by throwing away a ClassLoader. Dangling references to objects in that class loader would prevent garbage collection.

 public  void removeAttribute(String name) 
{
        attributes.remove(name);
}

Remove any configuration attribute associated with the specified name. If there is no such attribute, no action is taken.

 public  void setAttribute(String name,
    Object value) 
{
        if (value == null) {
            attributes.remove(name);
        } else {
            attributes.put(name, value);
        }
}

Set the configuration attribute with the specified name. Calling this with a null value is equivalent to calling removeAttribute(name).