All Known Subinterfaces:
All Known Implementing Classes:
A converter that can be used to convert the value given for an event. This converter allows for converting based
on the previous value as well as the new updated value. The old value and old metadata are the previous values and
the new value and new metadata are the new values even for pre and post events.
C convert( K key,
Converts the given newValue into something different possibly.
key - The key for the entry that was changed for the event
oldValue - The previous value before the event takes place
oldMetadata - The old value before the event takes place
newValue - The new value for the entry after the event takes place
newMetadata - The new metadata for the entry after the event takes place
eventType - The type of event that is being raised
Returns: The converted value to be used in the event
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