I have these two tables And I am using this query to get the results So far this is the only way I could retrieve the results and actually use them later. To use them I am using this code currently But using it that way seems odd to me. Is there a better way to directly map the result
Tag: jpa
Querying using class in Spring
i’m trying to do this query List<Product> findProductByCategory_CategoryNameAndPriceBetween(String category, double min, double max); but the return of the query is an empty list. What am I doing wrong? I also tried without the underscore between Category and Category Name. This are the class category and product: And this is how I have implemented the repository: Answer With the implementation below,
How to map column with type BIT(24) in PostgreSQL with Hibernate
I have a table with a column which type is a bit (24). I tried to use String and when I try to get this object it maps well, but when I try to save it, Hibernate throws Exception: org.postgresql.util.PSQLException: ERROR: column is of type bit but expression is of type character varying I know that if it’s a bit(1)
JPA Converter with contains query
I’m having some trouble with a particular query in my Spring Boot application. I’m using Spring’s built-in text encryption in order to encrypt text in my database I have an entity called BookRecord And a title encryption converter which looks like this I’m trying to search the database using a “contains” on the title, however because the title is encrypted
JPA Hibernate Annotation Issue
I have three Entities i’m modeling and am having issues with the associated annotations. I basically have a class that I intend on returning to the caller, a nested listed of Project’s and the Project can contain a nested list of Endpoint’s. It’s a top-level has-a one-to-many, then the nested one-to-many has two one-to-many’s. I’ve played with @JoinColumn annotations, i’ve
Spring Boot Jpa specification Set Enums IN Set Enums
Hi I want filter restaurant by type using Specification, but I get error: Parameter value [SUSHI] did not match expected type [java.util.Set (n/a)] How Can I comare List enums to list enums ? :/ My specification file: Restaurant model: Restaurant category: Answer Had the same problem and this question helped me. In my case, I wanted to search my commissions
JPA Embeddables – Multiple per Entity, Single Table for all Entities
I’m exploring options for being able to store specific addresses (home, work etc.) for multiple entities, and having a single table that holds all addresses, probably with some kind of discriminator per record. The primary keys for all tables are UUIDs. I’m using Spring Boot 2.3.6 and JPA/Hibernate. Ideally I’d like to use named properties per entity, rather than holding
Querying with ManyToOne association results in SQLException
I am trying out a simple use case for many-to-one association with Spring Data JPA but it is resulting in an SQLException. Model is of typical Order and OrderItem classes. Order OrderItem Unit test Unit test passes. But if I uncomment the line to find all items from OrderItemRepository it fails with following exception: What could be missing here ?
Create and use database function with JPA
I want to create and immediatly use a database function in a single sql call. As an example, the following works fine in PostgreSQL SQL Editor : But when i try to use it with JPA : I get the following error : How could i make this work ? Answer You’re trying to execute two queries at once. You
JPA Entity that has a OneToMany relationship and want to use DTO
I have an entity called “Review” that has a OneToOne relationship with a “User” entity and a OneToMany relationship with a “ReviewStage” entity. I have implemented a DTO pattern so, I also have ReviewDTO which is actually what is being sent to the UI. I am using mapstruct to map the entity to dto. All is working well however, I