HierarchyEventListener (SLF4J 1.7.25 API)
Date: 2017-03-16

org.apache.log4j.spi

## Interface HierarchyEventListener

-     public interface HierarchyEventListener

  Listen to events occurring within a `Hierarchy`.
  Since:
    1.2
  Author:
    Ceki Gülcü

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addAppenderEvent(Category cat, Appender appender)`
    `void` | `removeAppenderEvent(Category cat, Appender appender)`

- - ### Method Detail

    - #### addAppenderEvent

          void addAppenderEvent(Category cat,
                              Appender appender)

    - #### removeAppenderEvent

          void removeAppenderEvent(Category cat,
                                 Appender appender)

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