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package org.slf4j.spi;
This interface abstracts the service offered by various MDC implementations.

Author(s):
Ceki Gülcü
Since:
1.4.1
public interface MDCAdapter {

  
Put a context value (the val parameter) as identified with the key parameter into the current thread's context map. The key parameter cannot be null. The code>val parameter can be null only if the underlying implementation supports it.

If the current thread does not have a context map it is created as a side effect of this call.

  public void put(String keyString val);

  
Get the context identified by the key parameter. The key parameter cannot be null.

Returns:
the string value identified by the key parameter.
  public String get(String key);

  
Remove the the context identified by the key parameter. The key parameter cannot be null.

This method does nothing if there is no previous value associated with key.

  public void remove(String key);

  
Clear all entries in the MDC.
  public void clear();

  
Return a copy of the current thread's context map, with keys and values of type String. Returned value may be null.

Returns:
A copy of the current thread's context map. May be null.
Since:
1.5.1
  public Map<StringStringgetCopyOfContextMap();
  
  
Set the current thread's context map by first clearing any existing map and then copying the map passed as parameter. The context map parameter must only contain keys and values of type String.

Parameters:
contextMap must contain only keys and values of type String
Since:
1.5.1
  public void setContextMap(Map<StringStringcontextMap);
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