eclipselink

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Is there a difference between getTransaction().begin()/.commit() and joinTransaction() with JPA2/EclipseLink?

I\'m using JPA2 with annotations and EclipseLink and I\'m wondering if there开发者_开发知识库 is a difference between[详细]

2023-04-03 15:32 分类：问答
Synchronization issue with JMS and JPA

I have a situation where I need to receive parts of a large file over JMS(grouped messages) and store it in DB.[详细]

2023-04-03 11:27 分类：问答
How to merge a @OneToMany relationship effectively?

For example I have the following two entity classes with a one-to-many relationship: public class A implements Serializable {[详细]

2023-04-02 02:36 分类：问答
How else to ensure the order of a @ManyToMany List?

Consider: @Entity public class M { @ManyToMany private List<E> es = new ArrayList<E>(); private E newE;[详细]

2023-04-01 22:59 分类：问答
EclipseLink JPA: Can I run multiple queries from one builder?

I have a method that builds and runs a Criteria query. The query does what I want it to, specifically it filters (and sorts) records based on user input.[详细]

2023-04-01 22:41 分类：问答
Eclipselink caching problem (one database for two systems)

I have two online-systems running. Both of them are using eclipselink. The first system is a administration-system, where the prices for the second application are managed.[详细]

2023-04-01 19:20 分类：问答
Problem removing entity with JPA

UPDATE My friend did the same lines of code and his lines just worked. What could it be? I use NetBeans 7.0.1 and his is 6.9.1. My GlassFish is 3.1 and his is 3.0.1[详细]

2023-04-01 01:55 分类：问答
How to Insert Clob using JPA

We have a problem where we need to keep the copy of an input file in DB(regulatory purpos开发者_StackOverflow社区es). The file can be of size upto 1GB. Is there any way (using streaming and incrementa[详细]

2023-03-31 17:42 分类：问答
Make EcliseLink fail if there is an error executing the DDL statements

We use EclipseLink for persistence, and have configured EclipseLink to automatically create the database tables etc., by setting the property eclipselink.ddl-generation to drop-and-create-tables.[详细]

2023-03-30 22:48 分类：问答
Updated data (in Database) is not visible via JPA/Eclipselink [duplicate]

This question already has answers here: Spring Data JPA Update @Query not updating? (5 answers) Closed 2 years ago.[详细]

2023-03-30 15:31 分类：问答