* Move @Parent property recognition to ElasticsearchPersistentProperty
* Move type contraints for @Version and @Parent fields to ElasticsearchPersistentProperty to fail faster
* remove unused constant SUPPORTED_ID_TYPES from SimpleElasticsearchPersistentProperty
Original pull request: #208
Extracted ClusterNodes value object to capture the parsing logic and actually properly test it. Added unit tests to verify the proper rejection and the two cases outlined in the ticket.
Related tickets: DATAES-283.
Changes made for Spring Data Commons result in final fields being rejected for manipulation unless there's a wither method available on the object at hand. Unfortunately adapting Spring Data Elasticsearch to support that doesn't work easily as it requires breaking changes to ElasticsearchTemplate as most of the methods assume parameters being handed to be mutable, see the implementation of SimpleElasticsearchRepository.save(…) for instance.
We now mitigate the problem, by enforcing the BeanWrapperPropertyAccessor being used and treating all properties as mutable.
Related tickets: DATACMNS-1322.
Replace all StringUtils and ArrayUtils usages with Springframework's StringUtils and ObjectUtils. Left the commons-lang as test-scope dependency as I believe it brings some values in the tests.
Original pull request: #211.
SimpleElasticsearchPersistentProperty now already checks for the correct type of score properties. Added unit tests for that. Also added unit tests for SimpleElasticsearchPersistentEntity rejecting more than one score property being present.
Additional non-null assertions on components that are required so that we can remove superfluous null checks.
A bit o formatting, Javadoc, missing @since tags and license headers.
Original pull request: #207.
Mark Paluch