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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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Oracle NVL function equivalent in JQPL in EclipseLink (Version 2.1.3)?

I do this JPQL query SELECT e FROM Expediente e WHERE e.fechaBaja is null ORDER BY e.idSituacion ASC, e.idExpediente ASC but when e.idSituacion is null, eclipseLink not return this registry. How could i do this query with oracle…
Ibram
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JPA select creates many requests to db, performance

I'm new to JPA and I wrote simple JPA selects for my web service. I was using classic SQL statements before. It was great, I knew how to get solid speed, but I'm working with 3 different databases in 5 different projects now. So I thought that…
user1063364
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Java ORA-01034: ORACLE not available

My problem is in Exception Block I have shown,I can connect using GUI(PL/SQL developer) but my Eclipsedlink is getting exception while getting connection using Web Application. Please help me. Thanks in Advance. I am using ojdbc14.jar, I am getting…
sunleo
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Eclipselink - allocationSize property for TableGenerator

I am using EclipseLink for a small project to record user activities. I have a class that captures details about the activity and I am using the table generator strategy to generate the primary key ids for that class. The issue I am facing is that…
westendraider
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What includes EclipseLink internal optimization via weaving

I am new in EclipseLink and just right now I am getting know it step by step. Right now I am working on performance optimizations via weaving inb order to use lazy loading for ***ToOne relationships, fetch groups for partial loading of entity…
Simeon Angelov
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EclipseLink static weaved entities breaks remove of an entity operation

I successfully performed static weaving in EclipseLink-2.4.0 with eclipselink-staticweave-maven-plugin 1.0.3 , but when I also run integration tests. going through all layers in the system, they breaks. In startUp() method I create it's created an…
Simeon Angelov
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Avoid CHAR-trimming when using eclipselink

I have some Oracle-tables where some of the PK-fields are defined as CHAR(9), and all values are stored with padding. Thus, I have to retrieve all objects with space-padding in the key-fields. However, when EclipseLink reads the data into the…
Frode Halvorsen
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JPA Query sometimes returns incomplete result although the database is correct

I'm seeing some weird behavior with my web service. I am using jersey for JAXRS and eclipselink for JPA. I suspect the issue is somewhere with JPA. To keep it short, I have 2 entities: History and Challenge. @XmlRootElement @Entity public class…
Catalin Morosan
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Handling NULL values in @DiscriminatorColumn

I have a legacy MS SQL Server 2000 datatabase I am trying to map with JPA (EclipseLink to be precise). I have a table "CONTACT1" with a text field "KEY1" which can be either 'Contact' or 'Asset', and I am using: @Table(name =…
thedayofcondor
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EclipseLink MOXy 2.5.0 snapshot incompatability requiring attribute to be added to proporder

Everything was working fine with my maven enabled project. But when I rebuilt it today tests started to fail withe error the property or field count on the class org.musicbrainz.mmd2.DiscList is required to be included in the propOrder element of…
Paul Taylor
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JPA with EclipseLink and Java SE

After exporting the project jar file to the fileserver the creation of the entitymanager of jpa does not work anymore. There is following details: I use EclipseLink from Glassfishv3 Project I downloaded EclipseLink 2.4... from the website.…
Hasan Tuncay
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Explicit delete on JPA relationships

I am a bit confused about managing relationship in JPA. basically I have two entities with a One to Many relationship A configuration can have have a one or many email list associated with it. @Entity public class Config { …
Mark Estrada
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Eclipselink 2.4 + JPA + ManyToMany with additional column

I'm developing a student manager application in Java with JPA entities provided by Eclipselink. I'm trying to implement a many-to-many relationship between two entities for a while, but I ran into some weird exceptions. My implementations are based…
nothingam
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In JPA, why does CriteriaBuilder let me build unsound predicates between unrelated types?

I am curious as to why it is possible, with the CriteriaBuilder class of JPA 2, to create such queries. Suppose I have a User class with a persisted String called name as attribute. Why can I write this? CriteriaBuilder builder =…
Jean-Philippe Pellet
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Eclipse link simple join

How I can make a simple join query in eclipselink? I whant to receive ArrayList; For example, I have two entity: public class A implements Serializable { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Basic(optional = false) …
Terence
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