About join

manual

JPA Criteria API Queries

Explains how to use the JPA Criteria API (CriteriaBuilder, CriteriaQuery, etc.) to build JPQL like queries.... roots. See JavaDoc Reference Page... , join join(attributeName, jt) From's method Create a join to the ...

 
forum_thread

Integration

Hi,   Is there a way to integrate ObjectDB with Spring Framework to add the benefits of Transaction Management and DAO Support?   Regards, #1 2010-12-01 18:37 Hi, Is there a way to integrate ObjectDB with Spring Framework to add the benefits of Transaction Managem ...

 
release

2.6.1

... in Mac OS. Fixed a bug in using FETCH JOIN in criteria queries. Fixed a bug in cascading remove when ... and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated ...

 
forum_thread

Soft Reference Object Cache Recommendation

(Trying again.  Last post, ~50 minutes to compose, failed, possibly due to an attachment upload size limit being exceeded before the post attempt.  =(  ) #1 2016-10-24 15:15 (Trying again.  Last post, ~50 minutes to compose, failed, possibly due to an attachment upload size limit b ...

 
forum_thread

Cast exception?

Somehow I am unable to persist an entity class I wrote with manual @Id. I have a small Player class and I wish to store it with user ID as the primary key. So I declared the (only) primary key field as: @Id public int uid; This is how I'm persisting the instance: #1 2014-06-02 19:13 I'm getting a weird exception: java.lang.ClassCastException: database.entity.Player cannot be cast to d ...

 
forum_thread

Problem with distinct select, order by and equivalent alias/attribute path

Hi, while working with a (standard-)JPA-query generating framework we run into an exception when ordering the results of some projection when the order by expression is different (though logically equivalent) to the projection expression. Here is the example: ... + "from Street s " + "left join s.location as s_location " + "order by s_location.id ... + "from Street s " + "left join s.location as s_location " + "order by s.location.id ...

 
issue

Unexpected exception (Error 990) on find

I have a huge amount of inserts/updates and after a about 850.000 Entities I got the following error: Bug Version: 1.04 Priority: Normal Status: Fixed Replies: 16 Type:  Bug ...

 
forum_thread

EntityManager JPA or JDO impl and different behavior

Hi, I have an issue with the EntityManager. My persistance XML looks like: <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"> #1 2011-12-02 02:24 Hi, I have an issue with the EntityManager. My persistance XML looks like: <?xml version = ...

 
release

2.6.0

... in Mac OS. Fixed a bug in using FETCH JOIN in criteria queries. Fixed a bug in cascading remove when ... and maps of invalid types. Changed JOIN FETCH to act as LEFT JOIN in path expressions. Updated ...

 
forum_thread

zip file or JAR manifest missing

I found the message: Error opening zip file or JAR manifest missing: /E:/projects/ObjectDB/bin/objectdb.jar Some of projects can read the DB, but others can not read or write the DB. #1 2011-06-28 15:38 I found the message: Error opening zip file or JAR manifest missing : / E :/ projects / Obje ...