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Questions tagged [eclipselink]

EclipseLink delivers a comprehensive open-source Java persistence solution. EclipseLink focuses on standards (JPA, JAXB, SDO) with advanced features, performance and scalability for enterprise software developers across data sources, formats, and containers.

EclipseLink delivers a comprehensive open-source Java persistence solution. EclipseLink focuses on standards (JPA, JAXB, SDO) with advanced features, performance and scalability for enterprise software developers across data sources, formats, and containers.

5055 questions
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Why do I encounter an exception: "... is not a known entity type"?

I need help with a code snippet. I'm using the JPA provider EclipseLink. I have many classes and all work but this is the only one that throws me an error that it is not an entity. my persistence.xml
Daniel Betancourt
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Using EclipseLink MOXy with Java 1.5

Has anyone got EclipseLink MOXy (I'm using eclipselink 2.1.0) to work with Java 5? Whenever I try to unmarshal I get a null pointer exception in org.eclipse.persistence.oxm.record.UnmarshalRecord, in the startCDATA() method (xPathNode is null). The…
Frothy
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EclipseLink: usage of query redirectors on subclass-entities with JOINED strategy

My entity-class hierarchy starts with a MappedSuperclass providing a "status" attribute and declaring a query redirector in case of "delete": @MappedSuperclass @AdditionalCriteria(value = "this.entityStatus <> 'DELETED'") @QueryRedirectors(delete =…
Roberto Pierpaoli
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Problem Deploying Wicket/JPA (EclipseLink) App to Glassfish

I have a small Wicket app that I can deploy to Glassfish v3 without any problems. I also have a JAX-RS webservice that includes a jar file that contains JPA entity beans and stateless service beans that deploys successfully. However, when I try to…
sdoca
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JPA deadlock with @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)

in my application I have a deadlock problem and do not know if and how I could handle it. I am using JPA 2.1 (with eclipselink) on a glassfish server. There are two EJBs. OuterBean should write a LogEntry to database and calls InnerBean in a loop.…
Filou
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how to write new entity in postCalculateUnitOfWorkChangeSet or preCommitTransaction

I am using Eclipselink and want to write changlog (an entity) for all insert/change/delete business enitities. I found the hooks postCalculateUnitOfWorkChangeSet or preCommitTransaction of SessionEventAdapter where I can build and insert changelog…
Jacky
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Purpose of Eclipselink 2.6.0 query - SELECT ID FROM TBL WHERE ID=?

Has anyone got an idea why JPA Provider - Eclipselink (using version 2.6.0) generates query like: SELECT ID FROM OPERATION WHERE (ID = ?); or SELECT ID FROM SUBSCRIPTION WHERE (ID = ?); Why it needs to get ID providing an ID... Maybe 1st or 2nd…
maciek
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Old Sequence Value for JPA Generated ID using Eclipselink

The generated id for a JPA entity generates an "old", used number, when Eclipselink is used as ORM, but with Hibernate the id is the correct next value of the sequence. In the entity class I use these annotations with the id…
Gregor
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eclipselink batch fetch IN does not work well with multiple tenant

I am using @Multitenant(SINGLE_TABLE) to support multi-tenancy. To fix the n+1 problem, I use batch fetch feature of eclipselink. @Entity public class TestEntity implements Serializable { @Id @Column private Long id; …
Jacky
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How to inject EntityManager in Java SE using @PersistenceContext (EclipseLink)

I have a client-server application that I made for a project at my university and I'm having problems with the database-JPA Cache synchronization. I'm using an application-managed EntityManager about which I found out from other posts that it's…
frozencure
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Any way to do a path expression that evaluates to a left join in JPA?

This JPQL query: select p from Post p where p.status = 'public' or p.author.name = 'John' Translates to a join between post and author, so it misses all records that are public (status = 'public') that has no author (author = null). Any way to…
Thiago Negri
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EclipseLink:How to avoid additional sql query for nested left join

I have the following entities: @Entity class A{ @OneToMany private List bs; ... } @Entity class B{ @OneToMany private List cs; ... } @Entity class C{ ... } So I do the followin query: SELECT a FROM A a LEFT JOIN FETCH a.bs b LEFT…
Pavel_K
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JPA EntityManager.detach() still load lazy relations

I got a problem that goes against my understanding of how it supposed to work. I have a Arquillian-test that tests a repository-method with a JPA query. The test persists an object, and then persists an another object with the first persisted…
Roland
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why testing an individual junit test works, while testing them together won't?

The test that fails when tested together with mvn test (or through the ide) is called EmpiricalTest. If I test the file alone it goes through, but not otherwise. Why could that be? You can checkout the Maven source code (to test) from here. This is…
simpatico
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Disable additional criteria only in some entity relations

I am making an application based on JPA/EclipseLink, I implemented a soft delete functionality using @AdditionalCriteria in the root class of the hierarchy of entities (all entities inherit from this). My problem is that now, I need to create a…
Marcos
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