===============
ChangeTopicCase
===============

.. code-block:: text

    com.github.jcustenborder.kafka.connect.transform.common.ChangeTopicCase


This transformation is used to change the case of a topic.


.. TIP::
    This transformation will convert a topic name like 'TOPIC_NAME' to `topicName`, or `topic_name`.



.. toctree::
    :maxdepth: 1
    :caption: Examples:
    :glob:

    examples/ChangeTopicCase.*

-------------
Configuration
-------------
^^^^^^^
General
^^^^^^^


""""
from
""""

The format of the incoming topic name. `LOWER_CAMEL` = Java variable naming convention, e.g., "lowerCamel". `LOWER_HYPHEN` = Hyphenated variable naming convention, e.g., "lower-hyphen". `LOWER_UNDERSCORE` = C++ variable naming convention, e.g., "lower_underscore". `UPPER_CAMEL` = Java and C++ class naming convention, e.g., "UpperCamel". `UPPER_UNDERSCORE` = Java and C++ constant naming convention, e.g., "UPPER_UNDERSCORE".

**Importance:** HIGH

**Type:** STRING

**Validator:** Matches: ``LOWER_HYPHEN``, ``LOWER_UNDERSCORE``, ``LOWER_CAMEL``, ``UPPER_CAMEL``, ``UPPER_UNDERSCORE``



""
to
""

The format of the outgoing topic name. `LOWER_CAMEL` = Java variable naming convention, e.g., "lowerCamel". `LOWER_HYPHEN` = Hyphenated variable naming convention, e.g., "lower-hyphen". `LOWER_UNDERSCORE` = C++ variable naming convention, e.g., "lower_underscore". `UPPER_CAMEL` = Java and C++ class naming convention, e.g., "UpperCamel". `UPPER_UNDERSCORE` = Java and C++ constant naming convention, e.g., "UPPER_UNDERSCORE".

**Importance:** HIGH

**Type:** STRING

**Validator:** Matches: ``LOWER_HYPHEN``, ``LOWER_UNDERSCORE``, ``LOWER_CAMEL``, ``UPPER_CAMEL``, ``UPPER_UNDERSCORE``