I have a field id defined as below. It's varbinary(16) in database, when i am inserting a new record through JPA, i got "com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for colum...

I am trying to edit a table in Postgresql using JPA in Glassfish using EclipseLink. When I insert an entity, it runs fine. But, when I try to edit or remove the same entity, it fails with the follo...

how to do static weaving if we use eclipselink jpa in the spring boot app. There is a lack of enough articles on it in internet. The articles I saw used de.empulse.eclipselink staticweave-maven-plu...

Im not finding a way to map the JSON and JSONB datatypes from PostgreSQL using JPA (EclipseLink). Is some one using this datatypes with JPA and can give me some working examples?

I am trying to write a JPQL query with a like clause: LIKE '%:code%' I would like to have code=4 and find 455 554 646 ... I cannot pass :code = '%value%' namedQuery.setParameter("%" + this....

In my project i am using JPA 2.0 with eclipselink inplementation, an I have following problem: I have defined entity with boolean column: @Entity public User { @Id @GeneratedValue(strategy = G...

My application runs on Payara and provides a REST API but when I try to create an object with a POST request I get the following exception: Exception [EclipseLink-43] (Eclipse Persistence Service...

There have been some discussions here about JPA entities and which hashCode()/equals() implementation should be used for JPA entity classes. Most (if not all) of them depend on Hibernate, but...

I'm having an Entity which has a primary key / id field like the following: @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private Long id; This works well. I'm using EclipseLink to cre...

I went back to programming my old program https://github.com/JonkiPro/REST-Web-Services. I've updated Spring Boot from version 15.6 to version 2.0.0. I have encountered many problems with compilati...

i have an Entity User, and my DB value for user is: name totalScore -------------------- ABC 25 XYZ 30 Now i want to run the query update user set totalScore=totalScore+ (2*totalScore); How c...

I wanted to write a Converter for JPA that stores any enum as UPPERCASE. Some enums we encounter do not follow yet the convention to use only Uppercase letters so until they are refactored I still ...

I have the following mapping: @Entity @Table(name = "Prequalifications") public class Prequalification implements Serializable { ... @ManyToMany @JoinTable(name = "Partnerships", joinColumns =...

For example I have a table as Student it's contain columns like id, name, age I am reverting particular column values by using NativeQuery like below. Query query = entityManager.createNativeQuer...

You have the EntityManager.find(Class entityClass, Object primaryKey) method to find a specific row with a primary key. But how do I find a value in a column that just have unique values and is n...

is it possible to access the information in <persistence-unit-metadata> through Java API? <persistence-unit-metadata> <persistence-unit-defaults> <schema>MySchema</sch...

I'm attempting to follow the example located here but get an javax.xml.bind.PropertyException. I receive this exception because of the following line of code: marshaller.setProperty(MarshallerProp...

I'm new to JAXB and I want to change the default namespace prefix using EclipseLink MOXy. My package-info.java has the following code lines: @javax.xml.bind.annotation.XmlSchema ( namespace="http:...

I've updated Spring Boot from version 1.5.6 to 2.0.0 and a lot of problems have started. One is the problem given in the subject. I have a class with properties @Data @ConfigurationProperties("ecl...

I'm trying to add constraints checking, as described here How to specify the cardinality of a @OneToMany in EclipseLink/JPA

I am working on a client server application. in the Server side i have generated my entity data model with JPA2.0 and EclipseLink as provider. here is one of the classes @Entity @Table(name = "Cus...

I'm working on an EclipseLink project in which one user can "follow" another as can be done on social media sites. I have this set up with a User entity (referencing a table called users) which has...

I have a web app, using EclipseLink and MySQL for storing data. Some of these data are strings, ie varchars in the DB. In the code of entities, the strings have attributes like this: @Column(name ...

I can't figure out what I'm doing wrong. I'm learning JPA mapping to a relational DB, by following some tutorials on the web, but can't find one that is straightforward. When I run my project, it g...

I have a class that looks something like this: @Entity public class EdgeInnovation { @Id public long id; @ManyToOne public NodeInnovation destination; @ManyToOne public NodeInnovation origin...