org.apache.log4j.pattern
Class NameAbbreviator

java.lang.Object
  org.apache.log4j.pattern.NameAbbreviator

public abstract class NameAbbreviator
extends Object

NameAbbreviator generates abbreviated logger and class names.

Constructor Summary

NameAbbreviator()

Method Summary

abstract void	abbreviate(int nameStart, StringBuffer buf) Abbreviates a name in a StringBuffer.
static NameAbbreviator	getAbbreviator(String pattern) Gets an abbreviator.
static NameAbbreviator	getDefaultAbbreviator() Gets default abbreviator.

Methods inherited from class java.lang.Object

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

Constructor Detail

NameAbbreviator

public NameAbbreviator()

Method Detail

getAbbreviator

public static NameAbbreviator getAbbreviator(String pattern)

Gets an abbreviator. For example, "%logger{2}" will output only 2 elements of the logger name, %logger{-2} will drop 2 elements from the logger name, "%logger{1.}" will output only the first character of the non-final elements in the name, "%logger{1~.2~} will output the first character of the first element, two characters of the second and subsequent elements and will use a tilde to indicate abbreviated characters.

Parameters:

pattern - abbreviation pattern.

Returns:

abbreviator, will not be null.

getDefaultAbbreviator

public static NameAbbreviator getDefaultAbbreviator()

Gets default abbreviator.

Returns:

default abbreviator.

abbreviate

public abstract void abbreviate(int nameStart,
                                StringBuffer buf)

Abbreviates a name in a StringBuffer.

Parameters:

nameStart - starting position of name in buf.

buf - buffer, may not be null.