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forum_thread

Attempt to execute a query using a closed EntityManager

Hi again! Suddenly, my app started to throw this exception. I would really appreciate some advices. #1 2013-06-02 16:40 Hi again! Suddenly, my app started to throw this exception. I would really appreciate some advices. ...

 
manual

ORDER BY clause (JPQL / Criteria API)

Explains how to use the ORDER BY clause in a JPA/JPQL query. The ORDER BY clause specifies a required order for the query results. Any JPQL query that does not include an ORDER BY clause produces results in an undefined and non-deterministic order. This page covers the following topics: ...

 
api-jpa

javax.persistence.PersistenceException

Thrown by the persistence provider when a problem occurs.(Exception of JPA)

 
forum_thread

ObectDb 2.3.6 in OSGi environment

Hello, I'm trying to use ObjectDb within OSGi bundles. I have one bundle for db accens which uses ObjectDb and another bundle which includes the POJO models. Everytime I start in plugin evironement i get an PersistenceException, because my POJO not found. If try the same test in normal Java environment everthing works fine. Can you please advice? Thx Peter ... ( ) ) ; In addition, try version 2.4.1 instead of 2.3.6. ObjectDB ...

 
page

JPA Tutorials

Tutorials for using JPA and ObjectDB in Eclipse and NetBeans (console applications, web application, Java EE 6 applications).... instructions on how to create the sample applications. In addition, the sample applications are also available for download as ready to ...

 
api-jpa

javax.persistence.NonUniqueResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult() is executed on a query and there is more than one result from the query.(Exception of JPA)

 
forum_thread

adding tutorial videos to youtube

Hello , it will be good for you to add video tutorials for objectdb and explorer on youtube. #1 2013-02-02 22:45 Hello , it will be good for you to add video tutorials for objectdb and explorer on youtube. ...

 
api-jpa

javax.persistence.NoResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult()is executed on a query and there is no result to return.(Exception of JPA)

 
api-jpa

javax.persistence.QueryTimeoutException

Thrown by the persistence provider when a query times out and only the statement is rolled back.(Exception of JPA)

 
forum_thread

Object as parameter results in exception

Hi,    I've got a simple JPA2 Criteria query which fails when doing an object equality. I verified this against EclipseLink and over there, it works. I'll Attach some code snippets to help figure it out:   @Entity() public class Product{ . . . @ManyToOne     private Compamy owningCompany; } @Entity() public class Company{    .    .    .     @Id    private Long id; } and the query: #1 2011-04-27 12:15 Hi,    I've got a simple JPA2 Criteria query which fails when doing an object equality. I v ...