jpa

问题 I'm trying to convert the following query to native query, I'm getting empty list while the query is returning 2 tuples following is the query : SELECT s.id AS shopID, s.shop_name AS shopName FROM shop s WHERE s.shop_name LIKE '%store%' ; following is the method I've created which is returning empty list while it's supposed to send a list containing two objects (this is the method of m repository) @Query(value = "SELECT \n" + " s.id AS shopID,\n" + " s.shop_name AS shopName \n" + "FROM\n" + "

问题 I'm trying to convert the following query to native query, I'm getting empty list while the query is returning 2 tuples following is the query : SELECT s.id AS shopID, s.shop_name AS shopName FROM shop s WHERE s.shop_name LIKE '%store%' ; following is the method I've created which is returning empty list while it's supposed to send a list containing two objects (this is the method of m repository) @Query(value = "SELECT \n" + " s.id AS shopID,\n" + " s.shop_name AS shopName \n" + "FROM\n" + "

问题 I have the following row in my MySQL Table: https://i.stack.imgur.com/u0FC4.png This column is represented as: @Column(name="release") @DateTimeFormat(pattern = "yyyy-MM-dd") private LocalDate release; And it is bound to a Thymeleaf form like so: <label for="release">Release date</label> <input type="date" th:field="*{movie.release}" th:value="*{movie.release}" id="release" class="form-control mb-3"> Now if I insert a date into the MySQL db directly, the date is loaded and set to the correct

问题 I have the following row in my MySQL Table: https://i.stack.imgur.com/u0FC4.png This column is represented as: @Column(name="release") @DateTimeFormat(pattern = "yyyy-MM-dd") private LocalDate release; And it is bound to a Thymeleaf form like so: <label for="release">Release date</label> <input type="date" th:field="*{movie.release}" th:value="*{movie.release}" id="release" class="form-control mb-3"> Now if I insert a date into the MySQL db directly, the date is loaded and set to the correct

问题 Describtion To implement multithreading in hibernate & jpa, i deep copy some of my entities. Those copys are used by the sessions to add, remove or update the entities. Problem It worked fine so far, but i ran into a issue with parent/child relations. When i update my parent, its childs are "always" inserted... they never receive any sort of update. And this is pretty bad, because i receive a "Duplicate Key" exception at the second parent-update iteration. My flow currently looks like the

问题 Describtion To implement multithreading in hibernate & jpa, i deep copy some of my entities. Those copys are used by the sessions to add, remove or update the entities. Problem It worked fine so far, but i ran into a issue with parent/child relations. When i update my parent, its childs are "always" inserted... they never receive any sort of update. And this is pretty bad, because i receive a "Duplicate Key" exception at the second parent-update iteration. My flow currently looks like the

问题 Describtion To implement multithreading in hibernate & jpa, i deep copy some of my entities. Those copys are used by the sessions to add, remove or update the entities. Problem It worked fine so far, but i ran into a issue with parent/child relations. When i update my parent, its childs are "always" inserted... they never receive any sort of update. And this is pretty bad, because i receive a "Duplicate Key" exception at the second parent-update iteration. My flow currently looks like the

问题 This is my Base Class for Entities with audit fields. For fields @CreatedDate, @LastModifiedDate, by default it is saving my system time. My requirement is to save timestamp in UTC. Does anyone have a solution of this? import java.time.LocalDateTime; import javax.persistence.Column; import javax.persistence.EntityListeners; import javax.persistence.MappedSuperclass; import org.springframework.data.annotation.CreatedBy; import org.springframework.data.annotation.CreatedDate; import org

问题 I'm very new to Java EE and JPA/Eclipselink, so please bear with me. I'm trying to create a @Id for a table with no primary key and two composite keys, I tried to apply from a solution I read here by using @IdClass to mark the two foreign keys as a composite key, but I get this error when compiling and deploying the server. Exception Description: Invalid composite primary key specification. The names of the primary key fields or properties in the primary key class [com.owl.server.objects

问题 I have a JPA entity (but this question is interesting in general) that consists of multiple child classes (aggregation). I need to create a new entry in the DB that is 90% identical to the existing one (a few business values and of course the IDs need to be different). As we need mapstruct for mapping between entity and TO I was thinking "Can mapstruct do this for me?" After Creating a deep copy I could simply update the remaining fields and persist the object. Writing a copy constructor by