org.apache.tamaya.functions

## Interface KeyMapper

-     public interface KeyMapper

  Represents a function that maps a key of a property entry to another key (or removes it if mapped to null).

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `mapKey(String key)` Maps a property key to another key.

- - ### Method Detail

    - #### mapKey

          String mapKey(String key)

      Maps a property key to another key.
      Parameters:
        `key` - the fproperty key, not null
      Returns:
        the new key, returning null, removes the entry.

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