Is it possible to assign a specific DataSource to a @Repository? I’d like to create a test environment where in general I want to use the test-datasource, but a few CrudRepository should operate on a different DB (the production DB; read-only operations). Can I tell spring which datasource to use for a …
Tag: spring-data-jpa
Spring boot JPA insert in TABLE with uppercase name with Hibernate
i have a table entity mapped as : When i try to insert new record in database, the table name was translated in lowercase as : items_to_register , but my table name is ITEMS_TO_REGISTER How can i fix my problem without change MySql configuration? (my.cnf) I have in my application.properties file : Answer On h…
What does Hibernate @Proxy(lazy = false) annotation do?
I was facing two different stack traces (see below) when trying to serialize my ESRBRating object which is a JPA entity. I am using Spring Data JPA. The controller called the service, service called the repository. I was able to resolve the issue by adding @Proxy(lazy = false) on my ESRBRating object. My main…
How to log Spring Data JPA repository method execution time?
I have simple Spring Data JPA repository. Is there any way to monitor execution time for methods generated by Spring (for example findOne(…))? Answer The easiest way is to use a CustomizableTraceInterceptor as follows:
%Like% Query in spring JpaRepository
I would like to write a like query in JpaRepository but it is not returning anything : LIKE ‘%place%’-its not working. LIKE ‘place’ works perfectly. Here is my code : Answer The spring data JPA query needs the “%” chars as well as a space char following like in your query, …
How to implement only specific method of CrudRepository in Spring?
I’m using CrudRepository of spring-data-jpa to just define an interface of an entity and then having all standard crud methods without having to provide an implementation explicitly, eg: Though now I’d like to override only the save() method in my custom implementation. How could I achieve this? B…
Query creation in Spring Data – dynamic where clause
Is there a way in Spring data to dynamically form the where clause? What I want to do is have a method (which is like the findBy / get method) which runs a WHERE and AND using the mentioned properties which are NOT NULL. For example, Our method looks something like this Thanks. Answer Take a look at JPA Speci…
What’s the difference between JPA and Spring Data JPA?
I am a bit confused about the difference between Spring Data-JPA and JPA. I know about JPA that it is a specification for persisting the Java Objects to a relational database using popular ORM …
What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
What is the difference between CrudRepository and JpaRepository interfaces in Spring Data JPA? When I see the examples on the web, I see them there used kind of interchangeably. What is the difference between them? Why would you want to use one over the other? Answer JpaRepository extends PagingAndSortingRepo…
How to query data out of the box using Spring data JPA by both Sort and Pageable?
I am trying Spring data JPA in my project. I want to know if there is an out-of-the-box API to query data, by both Sort and Pageable. Of course, I know I can write that method myself, I just want to know if there is an out-of-the-box one. My DAO extends JpaRepository, and I found there are the following metho…