About embedded

forum_thread

Extending model by "common entity"

Hi, I have a question about extending working model with one, common entity, that all other entities will inherit from. For example I have 2 different entities in database with some data:... was already used with the new schema - open it once in embedded mode from your application (not using the Explorer) - after rebuilding ...

 
manual

Index Definition

Describes how to define indexes in JPA entity classes and explains how indexes are used in JPQL queries.... only allowed when using embeddable classes as fields of embedded object are stored as part of the containing entity. Composite ...

 
forum_thread

explorer NullPointerException

I studied ObjectDB a few hours ago and got some problems when use explorer . I run it and right-click in 'Open local database' window,and the all the pop menu item is gray and disabled,such as ‘new database’,'new directory','cut','copy' ... if I click 'tools---oprions' before open database, the errot I got is: [2012-05-21 09:51:11 #1 explorer] java.lang.NullPointerException at com.objectdb.o.CNC.p(CNC.java:253) at com.objectdb.o.EHL.d(EHL.java:55) at com.objectdb.o.VPN.(VPN.java:60) at com.objectdb.o.OPD.(OPD.java:69) at com.objectdb.o.OPD.(OPD.java:42) ... the time when I want to creat a new database,[file>open embedded],right click, but all the item of pop menu is gray and ...

 
issue

com.objectdb.o.InternalException

No idea what happened.  A simple getResultList() opearation. DB table affected size is ~ 26000 records, physical DB file size is ~ 8.5MB Thanks for any help ! Leon log file: ------------------------------------------------------------------------------------------------------------------------ [2016-07-13 19:58:12 #1 store] Database '/home/gsi/wdsync/db/Media_wdsync.odb' is opened by 12659@server ... a JVM memory shortage problem as I'm running in an embedded system (ODROID-C1) with limited ressources. In the meantime I ...

 
forum_thread

Configure ObjectDB in spring context

I have a application that initializes with spring, now I'd like to change my data access tier to ObjectDB (from Hibernate : HSQL), but I couldn't find any useful information on it. My goal is to configure entire ObjectDB (optionally objectdb.conf too) in springs context.xml file so that I'd be able to inject EntityManagerFactory to my beans. Could you help me on this? ... also replace the  objectdb.conf resource that is embedded in the objectdb.jar file, and then no external file will be ...

 
forum_thread

Eclipse4 RCP - No Persistence provider for EntityManager

Hello, I'm developing an Eclipse4 RCP application which uses ObjectDB and have the following problem after calling Persistence.createEntityManagerFactory("test.odb") : javax.persistence.PersistenceException: No Persistence provider for EntityManager I'm using the latest ObjectDB 2.6.2.b03. It is integrated in our target platform. It is noticed that since 2.6.2.b02 there is no more integrated javax.persistence & javax.transaction. #1 2015-06-09 12:20 Hello, I'm developing an Eclipse4 RCP application which uses ObjectDB and have the following problem ...

 
forum_thread

Changes in detach behaviour?

Hello! Today i upgraded to 2.3.5_04. My program stopped working. After some debugging i found out that all fields of retrieved objects are on their default value till i first call a getter or detach them explicitly. Up to 2.3.4 they where initialized immediately. The problem in my case is that i have a Spring DAO. It does the following: I call for example getUserByName("blub). ... a project even if enhancement is required, posting it as embedded source code instead of as an attachment is preferred). Please ...

 
forum_thread

Explorer in 2.3

First, the new Explorer in ObjectDB is fantastic! This is exactly what we've needed - an easy way to do ad-hoc JPQL queries and navigate through the results and even make small changes to primitive data and Strings. After playing with it for a while, here is a list of additional features I'd love to have: 1. Export of selected data: a. Simple - Select a range of cells or a column header and copy text to the clipboard or save to a file (csv, html, etc..). (There appear to be copy menu options, but I cannot get them to work.) ... connections'. 2. When editing a field in an @Embedded object, I get an error message: "Attempt to lock a non entity object". ...

 
forum_thread

Upgrade to 2.4.1_02

Hi there, The upgrade to 2.4.1_02 fixed the initial problem, however there still seems to be an issue. To me it appears that Embeddable might be being lazy loaded, but I cannot be sure. I have attached a testcase demonstrating this issue. Its failing on the merge. Thanks P. ... It seems that indeed there was a problem with embedded objects in merging. Please try build 2.4.1_03. ...

 
issue

JPA Composite Key make Object Db throws "Unexpected exception (Error 990)"

Hello Object Db community :) I am using this wonderful library and I caught a strange exception while testing the "composite key" feature in JPA. Let's see what I am doing : @Entity public class Book {     @EmbeddedId BookId id; } @Embeddable Class BookId {     Integer bookIdCountry;     ECountry country; } My BookId contains 2 attributes: One Integer and one enum. ... May the problem be reproduced with a simple ( not embedded Id ) key with an enum type. Here is the code : ...