About join

release

2.6.9

... (no access during backup operation). Fixed JOIN FETCH bugs. Fixed a performance issue with mapped by fetch. ... in Mac OS. Fixed a bug in using FETCH JOIN in criteria queries. Fixed a bug in cascading remove when ...

 
forum_thread

'DROP TABLE' in ODB?

Let's say I no longer need some entity in my project and after deleting all the objects of this type in database I want to remove this type from schema. How can I do this? Is there something like SQL 'drop table' in ODB? #1 2012-03-14 07:39 Let's say I no longer need some entity in my project and after deleting all the objects of this type in datab ...

 
forum_thread

Exception after update of indices of Entity class

Hello, I changed the index definition of an entity class from @Index()... to @Indices() and now I get the following stacktrace upon start: #1 2017-08-03 13:18 Hello, I changed the index definition of an entity class from @Index()... to @Indices() and now I get the ...

 
release

2.5.0

... 2.5.0 Added support of nested paths in JOIN FETCH. Added support of persisting collections and maps of ... primary key inheritance. Fixed a bug in JOIN FETCH. Fixed a bug in loading reference primary key field of ...

 
forum_thread

What algorithm in find()

I test the time cost for find(), obtain a linear complexity with the following codes: #1 2011-05-24 23:44 I test the time cost for find(), obtain a linear complexity with the following codes: int iBlock = ...

 
issue

Threaded Test - Failed to commit transaction: Unexpected internal exception

Hi I'm trying to create a simple producer-consumer queue scenario but am getting the followin exception: Bug Version: 2.2.7 Priority: Normal Status: Fixed Replies: 16 Type:  Bug ...

 
forum_thread

@OneToOne query issue with OR and IS NULL

Hello, I'm struggeling to get a query run right. I have 2 entities (simplified) ... this equivalent query: SELECT a FROM A a JOIN a . another b WHERE a . another IS NULL OR b . ... navigation through a relationship is implemented using JOIN (i.e. INNER JOIN ), and only the A instance that has another ...

 
forum_thread

Delete me

Any place where I can find Netbeans examples for the basic create, read, update, delete methods using the EntityManager? i.e. public void create(Foo foo) {} public Foo read(Integer id) {} public List<Foo> read() {} public void update(Foo foo) {} public void delete(Foo foo) {} #1 2014-02-28 16:37 Please delete this comment edit delet ...

 
forum_thread

IN expression in a Criteria Query

Hello, I am trying to migrate my Spring project from Hibernate to ObjectDB. On ObjectDB page, it is written that ObjectDB is 100% compatible with JPA. However, I have problem with this JPQL query: SELECT e FROM Employee e WHERE e.present = false AND NOT EXISTS (SELECT c FROM Computer c WHERE c.employeeEntity = e) ORDER BY e.name with Hibernate, there was no problem with this query, but ObjectDB throws exception: #1 2013-04-23 14:23 Hello, I am trying to migrate my Spring project from Hibernate to ObjectDB. On ObjectDB page, it is writt ...

 
release

2.6.8

... (no access during backup operation). Fixed JOIN FETCH bugs. Fixed a performance issue with mapped by fetch. ... in Mac OS. Fixed a bug in using FETCH JOIN in criteria queries. Fixed a bug in cascading remove when ...