With JPA 2.2, you no longer need to use converter it added support for the mapping of the following java.time types: java.time.LocalDate java.time.LocalTime java.time.LocalDateTime java.time.OffsetTime java.time.OffsetDateTime @Column(columnDefinition = “DATE”) private LocalDate date; @Column(columnDefinition = “TIMESTAMP”) private LocalDateTime dateTime; @Column(columnDefinition = “TIME”) private LocalTime localTime;
You can do something like @NamedQuery(name=”findWhatever”, query=”SELECT new path.to.dto.MyDto(e.id, e.otherProperty) FROM Student e WHERE e.id = ?1″) Then the MyDto object would just need a constructor defined with the correct fields i.e. public MyDto(String id, String otherProperty) { this.id = id; this.otherProperty = otherProperty; }
I got an very helpful advice from Oliver Gierke: The last exception you get actually indicates a problem with your JPA setup. “Not a managed bean” means not a type the JPA provider is aware of. If you’re setting up a Spring based JPA application I’d recommend to configure the “packagesToScan” property on the LocalContainerEntityManagerFactory … Read more
You are right. A request has been made to support better handling of null parameters. https://jira.spring.io/browse/DATAJPA-121 In your case, i would advise you to write your repository implementation and to use a custom CriteriaQuery to handle your case. Also you can use the @Query annotation with the is null syntax : @Query(“[…] where :parameter is … Read more
From Java Persistence API on Wikipedia: The Java Persistence API (JPA), in 2019 renamed to Jakarta Persistence, is a Java application programming interface specification that describes the management of relational data in applications using Java Platform, Standard Edition and Java Platform, Enterprise Edition/Jakarta EE. After Java EE was open sourced by Oracle and gave the … Read more
I used the solution also described in this post from Netgloo’s blog. The idea is to create a generic repository class like the following: @NoRepositoryBean public interface ABaseRepository<T extends A> extends CrudRepository<T, Long> { // All methods in this repository will be available in the ARepository, // in the BRepository and in the CRepository. // … Read more
@Lock is supported on CRUD methods as of version 1.6 of Spring Data JPA (in fact, there’s already a milestone available). See this ticket for more details. With that version you simply declare the following: interface WidgetRepository extends Repository<Widget, Long> { @Lock(LockModeType.PESSIMISTIC_WRITE) Widget findOne(Long id); } This will cause the CRUD implementation part of the … Read more
I know this is not a direct answer to your question, since you already have built a fix and started a pull request on Github. Thank you for that! But I would like to explain the JPA way you can go. So you would like to change all entities which match a specific criteria and … Read more
From at least, the 2.0 version, Spring-Data-Jpa modified findOne(). Now, findOne() has neither the same signature nor the same behavior. Previously, it was defined in the CrudRepository interface as: T findOne(ID primaryKey); Now, the single findOne() method that you will find in CrudRepository is the one defined in the QueryByExampleExecutor interface as: <S extends T> … Read more
Please see DATACMNS-944 which is associated to this commit which has the following renames ╔═════════════════════╦═══════════════════════╗ ║ Old name ║ New name ║ ╠═════════════════════╬═══════════════════════╣ ║ findOne(…) ║ findById(…) ║ ╠═════════════════════╬═══════════════════════╣ ║ save(Iterable) ║ saveAll(Iterable) ║ ╠═════════════════════╬═══════════════════════╣ ║ findAll(Iterable) ║ findAllById(…) ║ ╠═════════════════════╬═══════════════════════╣ ║ delete(ID) ║ deleteById(ID) ║ ╠═════════════════════╬═══════════════════════╣ ║ delete(Iterable) ║ deleteAll(Iterable) ║ ╠═════════════════════╬═══════════════════════╣ ║ exists() … Read more