[slf4j-dev] [JIRA] (SLF4J-459) MDC to return previous values

[QOS.CH (JIRA)]

Claude Brisson created SLF4J-459:
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             Summary: MDC to return previous values
                 Key: SLF4J-459
                 URL: https://jira.qos.ch/browse/SLF4J-459
             Project: SLF4J
          Issue Type: Improvement
          Components: Core API
    Affects Versions: 1.8.0-beta4
         Environment: The put(key, value) method in MDC and MDCAdapter could easily return the previously stored value, or null if not found, since this value is returned by the underlying map.

Plus, the change is fully backward compatible.

This addition eases the implementation of stackable contexts by client applications, without the need of an additional map lookup to fetch the current MDC key value for latter restoration when the client context is popped up.
            Reporter: Claude Brisson
            Assignee: SLF4J developers list






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