org.apache.storm.metric

## Interface IEventLogger

- All Known Implementing Classes:
    FileBasedEventLogger

      public interface IEventLogger

  EventLogger interface for logging the event info to a sink like log file or db for inspecting the events via UI for debugging.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Interface and Description
    --- | ---
    `static class` | `IEventLogger.EventInfo` A wrapper for the fields that we would log.

  - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `close()`
    `void` | `log(IEventLogger.EventInfo e)` This method would be invoked when the `EventLoggerBolt` receives a tuple from the spouts or bolts that has event logging enabled.
    `void` | `prepare(Map<String,Object> conf, Map<String,Object> arguments, TopologyContext context)`

- - ### Method Detail

    - #### prepare

          void prepare(Map<String,Object> conf,
                       Map<String,Object> arguments,
                       TopologyContext context)

    - #### log

          void log(IEventLogger.EventInfo e)

      This method would be invoked when the `EventLoggerBolt` receives a tuple from the spouts or bolts that has event logging enabled.

      Parameters:
        `e` - the event

    - #### close

          void close()

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