repositoryMethod

**type**: ``string`` **default**: ``findBy()``

The name of the repository method to use for making the query to determine

the uniqueness. If it's left blank, the ``findBy()`` method will be used.

This method should return a countable result.

**type**: ``string`` **default**: ``findBy``

The name of a custom repository method to determine the uniqueness.

If it's left blank, ``findBy`` will be used. The method gets passed

an indexed array with elements in the form ``fieldName => value``

(where ``fieldName`` is the content of the ``fields`` option).

The method should return a

[countable](http://php.net/manual/function.is-countable.php) result.

entityClass