com.hazelcast.map.journal

## Interface EventJournalMapEvent<K,V>

- Type Parameters:
    `K` - the entry key type
    `V` - the entry value type

      public interface EventJournalMapEvent<K,V>

  The event for the map event journal.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `K` | `getKey()` Returns the key for the event entry.
    `V` | `getNewValue()` Returns the new value for the event entry.
    `V` | `getOldValue()` Returns the old value for the event entry.
    `EntryEventType` | `getType()` Returns the event type.

- - ### Method Detail

    - #### getKey

          K getKey()

      Returns the key for the event entry.
      Returns:
        the entry key

    - #### getNewValue

          V getNewValue()

      Returns the new value for the event entry. In some cases this is `null` while in other cases it may be non-`null`. For instance, when the event is of type `EntryEventType.ADDED`, the new value is non-`null` but when it is of type `EntryEventType.REMOVED`, the value is `null`.
      Returns:
        the entry new value

    - #### getOldValue

          V getOldValue()

      Returns the old value for the event entry. In some cases this is `null` while in other cases it may be non-`null`. For instance, when the event is of type `EntryEventType.ADDED`, the old value is `null` but when it is of type `EntryEventType.REMOVED`, the value is non-`null`.
      Returns:
        the entry old value

    - #### getType

          EntryEventType getType()

      Returns the event type.
      Returns:
        the event type

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