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forum_thread

Should derived fields of an EmbeddedId be manually maintained by app code?

If I have an Entity which has a primary key which is derived and I am implementing it using @EmbeddedId, am I responsible for maintaining the derived fields of the @EmbeddedId? I could not find anything in the JPA 2.0 spec http://download.oracle.com/auth/otn-pub/jcp/persistence-2.0-fr-oth-JSpec/persistence-2_0-final-spec.pdf?e=1317047713&h=54831c176e81a244a4c309e13eba0b27 which tells me what to expect. #1 2011-09-26 15:26 If I have an Entity which has a primary key which is derived and I am implementing it using @EmbeddedId, am I res ...

 
forum_thread

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds) for following code m_EntityMgrFactory = Persistence.createEntityManagerFactory( "objectdb:" + aFilename ); m_EntityManager = m_EntityMgrFactory.createEntityManager(); Does exist any way to speed-up open time for big databases? Definitely, it's too long for 500 Mb database! #1 2016-01-14 06:54 Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds) for following co ...

 
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

Left join fetch behaviour doesn't retrieve children?

Hello support, I'm a little bit confused about a left join fetch behaviour. In this test case, i try to fetch my 3 children using a left join fetch. But my collection is null after closing the em. It was expected to be fetched before closing the em, no ? In fact, that is the objective of the fetch purpose (i guess ?). #1 2015-06-07 07:34 Hello, I'm a little bit confused about a left join fetch behaviour. In this test case, i try ...

 
issue

InternalException

I'm getting a new InternalException (see below). No repeatable example as yet but will work on that and let you know as soon as we have one. If there's anything in the exception which could help us narrow down the problem please let me know. Bug Version: 1.04 Priority: High Status: Closed Replies: 9 Type:  Bug ...

 
forum_thread

find() cost unreasonable time!

Hi, I make a full binary tree of 4095 node, I check the first 9 node, but the root cost 24 seconds, why? Result: #1 2011-06-29 12:58 Hi, I make a full binary tree of 4095 node, I check the first 9 node, but the root cost 24 seconds, why? ...

 
forum_thread

Mapped By Fetch is very Slow

Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah again :( ). Here is the test case : 1- Create 100 000 entities with for each 1 entity with @OneToOne(mappedBy attribute) 2- Retrieve only 10 000 for testing 3- Wait ... On my AMD FX 8350, it took 60s Now, go the MyEntity class and remove "mapped-by". You obtain 1 second max of query fetch. #1 2015-06-19 11:05 Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah again :( ). Here is ...

 
forum_thread

Items in list are doubled, when the entity class is not enhanced

Dear all, I have a problem with adding items (entities) into other entity list. When the classes are not enhanced, added items are doubled. Here is an example: ... build 2.2.6_03 and was changed in order to fix orphan removal). If Customer is not dirty - it doesn't cascade persisting of ...

 
api-jdo

removeRegisterClassListener(crl)

Remove the specified RegisterClassListener from the listener list.(Method of javax.jdo.spi.JDOImplHelper)

 
forum_thread

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

Hi! Scenario: Copy attached DB into localhost ObjectDB server (I'm running 2.5.1_03). Open attached project JavaEE Maven with NetBeans (7.4 beta in my case). Start ObjectDB on localhost as server. Run project on Apache Tomee 1.5.2 standard. Take a look at NetBeans' output to see how many entities are found with field type GOOD. There are 2 ways generate the bug: #1 2013-09-03 10:13 Hi! Scenario: Copy attached DB into localhost ObjectDB server (I'm running 2.5.1_03). ...