org.jboss.logmanager
Class MDC

java.lang.Object
  org.jboss.logmanager.MDC

public final class MDC
extends Object

Mapped diagnostic context. This is a thread-local map used to hold loggable information.

Method Summary

static void	clear() Clear the current MDC map.
static Map<String,String>	copy() Get a copy of the MDC map.
static String	get(String key) Get the value for a key, or null if there is no mapping.
static String	put(String key, String value) Set the value of a key, returning the old value (if any) or null if there was none.
static String	remove(String key) Remove a key.

Methods inherited from class java.lang.Object

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

Method Detail

get

public static String get(String key)

Get the value for a key, or null if there is no mapping.

Parameters:

key - the key

Returns:

the value

put

public static String put(String key,
                         String value)

Set the value of a key, returning the old value (if any) or null if there was none.

Parameters:

key - the key

value - the new value

Returns:

the old value or null if there was none

remove

public static String remove(String key)

Remove a key.

Parameters:

key - the key

Returns:

the old value or null if there was none

copy

public static Map<String,String> copy()

Get a copy of the MDC map. This is a relatively expensive operation.

Returns:

a copy of the map

clear

public static void clear()

Clear the current MDC map.