public void debug( String format, Object arg1, Object arg2 )
    {
        if( m_delegate.isDebugEnabled() )
        {
            FormattingTuple tuple = MessageFormatter.format( format, arg1, arg2 );
            m_delegate.debug( tuple.getMessage(), tuple.getThrowable() );
        }
    }
public void debug ( String format , Object arg1 , Object arg2 ) { if ( m_delegate . isDebugEnabled ( ) ) { FormattingTuple tuple = MessageFormatter . format ( format , arg1 , arg2 ) ; m_delegate . debug ( tuple . getMessage ( ) , tuple . getThrowable ( ) ) ; } }
Log a message at the DEBUG level according to the specified format
and arguments.

<p>This form avoids superfluous object creation when the logger
is disabled for the DEBUG level. </p>

@param format the format string
@param arg1   the first argument
@param arg2   the second argument