["slug" being an entity attribute]
Spring Data offers an existsBy query method, which we can define in the PostRepository, as follows:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
boolean existsBySlug(String slug);
}
[another] option to emulate existence is using a CASE WHEN EXISTS native SQL query:
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@Repository
public interface PostRepository
extends JpaRepository<Post, Long> {
@Query(value = """
SELECT
CASE WHEN EXISTS (
SELECT 1
FROM post
WHERE slug = :slug
)
THEN 'true'
ELSE 'false'
END
""",
nativeQuery = true
)
boolean existsBySlugWithCase(@Param("slug") String slug);
}
Hello, I am currently searchin for a way to convert several Word documents into a single PDF file. The original Word documents are attachments to a One Order object in CRM 5.0, and I want to create an
Bayesian Methods for Hackers : An intro to Bayesian methods + probabilistic programming with a computation/understanding-first, mathematics-second point of view.
Filmbesprechungen, filmpädagogische Begleitmaterialien, News, Termine, Veranstaltungen, Adressen und Links für die schulische und außerschulische Filmarbeit.
There are some valid arguments against using Optional as a method parameter type, but they are not good enough to say that you should avoid it at all costs
I had a similar problem and struggling, googling for 1 day. But it was a simple mistake that instead of:
{http://ws.somecompany.com/services}ValidateUser
It should be
{http://ws.somecompany.com/services/}ValidateUser
K. Järvelin, and J. Kekäläinen. Proceedings of the 23rd Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2000), page 41--48. New York, NY, USA, ACM, (2000)