Database migrations may not have run before NamedParameterJdbcTemplate is used

[xak2000]

This is a variation of already fixed issue with JdbcTemplate #13155. But this is for NamedParameterJdbcTemplate.

The fix (4881925) doesn't take into account another kind of JdbcTemplate - NamedParameterJdbcTemplate, which implements NamedParameterJdbcOperations (and doesn't implement JdbcOperations).

So, if an application doesn't create JdbcTemplate bean but only creates NamedParameterJdbcTemplate bean (using it's NamedParameterJdbcTemplate(DataSource dataSource) constructor), this bean still created before migration tool (e.g. Flyway) runs their migrations. So any @PostConstruct, that uses NamedParameterJdbcTemplate, runs earlier than migration. What is worse: there is not always the case. Sometimes migrations runs earlier. I think this is more or less "random" order because there is no explicit @DependsOn here.

So I think it's need to create a NamedParameterJdbcOperationsDependsOnPostProcessor in line with JdbcOperationsDependsOnPostProcessor and Flyway/Liqbase childs of it.

Spring Boot version tested: 2.0.5. But I don't see any NamedParameterJdbcOperations postprocessors in master, so I think this bug affects current version too.

[clevertension]

@snicoll are you working to fix this bug? if not, i can provide a PR ASAP

[snicoll]

Thanks for the offer. Please proceed and I am happy to review your contribution.

[snicoll]

Closing in favour of PR #16047