About @Embedded

release

2.0.2

Release date: 2010-11-13 Download (3.39 MB) Binary:  objectdb-2.0.2.zip ObjectDB 2 is already in use in production in several applications and is ...

 
forum_thread

Index on map key

Is there a way to create an Index with @Index on the key of a map? #1 2013-10-02 06:10 Is there a way to create an Index with @Index on the key of a map? ...

 
issue

JPQL Subqueries (JPA 1.0)

The JPQL (Java Persistence Query Language) supports defining subqueries, which are nested queries that are embedded in other queries. Subqueries are currently not supported by ObjectDB, and as a workaround, you can use a sequence of two or more queries, where the results of one query serves as a parameter in the next queries. JPA Feature Version: Priority: Low Status: Active Replies: 0 Type:  JPA Feature ...

 
forum_thread

Error when I switch to server mode

I was previously using embedded mode without any problem.  Today I tried to switch to server mode, and after connecting and doing some db operations I got this: #1 2011-01-26 08:31 I was previously using embedded mode without any problem.  Today I tried to switch to server mode, and after ...

 
forum_thread

Delete class from DB - through Explorer

Hi! I was looking for ways to delete a class (entity/embedded) from a database through Explorer, but I couldn't find any. Is there any way for doing that? If not, why? The only way I see right now is to delete the whole db and make a new one, but that's not a good scenario at all when you already have data in the current db. Thanks! #1 2013-07-12 10:33 Hi! I was looking for ways to delete a class (entity/embedded) from a database through Explorer, but I couldn' ...

 
forum_thread

Need disk usage and delete some old files

    Hello , is it possible to get disk usage of database ? If disk usage becomes too high , delete old date files from database. And recalculate disk usage back ?   #1 2013-01-28 01:27     Hello , is it possible to get disk usage of database ? If disk usage becomes too high , del ...

 
forum_thread

explorer feature request: ability to auto refresh

Request for feature: Ability to auto-refresh an explorer view, say at regular intervals of a few seconds. (at a minimum one ought to be able to manually refresh, for example the list of persistent types). additionally, it would be useful to be able to view an embedded database (read only mode) via the explorer.   #1 2011-04-27 07:22 Request for feature: Ability to auto-refresh an explorer view, say at regular intervals of a few seconds. ...

 
forum_thread

Client server mode no longer works after JRE install

Hi I had client server mode working with no problems with my application. Then suddenly I was getting the following error "Error: missing 'server' at 'C:\Program Files\Java\jre7\bin\server\jvm.dll' on a client machine. It worked in embedded mode but not client server mode. #1 2013-05-01 11:33 Hi I had client server mode working with no problems with my application. Then suddenly I was getting the ...

 
api-jpa

javax.persistence.metamodel.SingularAttribute

Instances of the type SingularAttribute represents persistent single-valued properties or fields.(Interface of JPA)

 
forum_thread

Need help to analyse very high memory usage by objectdb (PRU, SEV, VAL[])

Hello, we have a useCase in which we consume too much memory and run into a "GC overhead limit exceeded" exception. Nearly 90% of the memory are taken by com.objectdb.o.PRU (49%) com.objectdb.o.SEV (29%) and com.objectdb.oVAL [] (9%). When debugging, we did not get the reason for the high memory consumption yet. Can you give us any any hints, which leads to the generation of these objects? We assume that we (erroneously) refer to too many entities in the memory. #1 2016-12-06 16:47 Hello, we have a useCase in which we consume too much memory and run into a "GC overhead limit exceeded" ...