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## 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.

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