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alter table

Hi: After a table built by real data, how to alter table structure, such as: alter table add column ... alter table add index ... TIA ... has, but how objectdb do the same thing? In the Explorer of ObjectDB 2.3 (not released yet) you will be able to see the ...

 
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Performance issues on aggregate query

we are using this aggregate query to collect some data: ... (you can see query plans when running queries in the Explorer). The SELECT clause in your post seems to be cut at the middle ...

 
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Field not persisted in abstract class with two level of nesting

Hi, I have a field (embedded TZ1) which is not persisted in class MHD1 (TZ1  extends AS and AS extends ATT). But it seems to work fine when I skip the AS and make TZ2 extend directly from ATT. Here is an example code MHD1 #1 2014-06-18 12:52 Hi, I have a field (embedded TZ1) which is not persisted in class MHD1 (TZ1  extends AS and AS  ...

 
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How to resolve 404 errors with Eclipse/Maven Spring MVC

I have created a project as guided by www.objectdb.com/tutorial/jpa/eclipse/spring/run. When I abandon eclipse and use the maven command line to deploy this Spring MVC web app to jetty and point my browser to localhost:8080/Guestbook/ it works as your tutorial says! ... Juno (eclipse-jee-juno-SR1-win32-x86_64), but the project explorer is closed and cannot be opened. Where is the project directory? ...

 
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Empty query results after JAR creation

Hi, I struggle with a strange issue. I've embedded ObjectDB in a small application to query cases. Within Netbeans everything works fine but when I create a  JAR File and executed via "Java -Jar xyz.jar", I get either empty results or on some cases a "NoResultException" which appears to report the same issue. I've created a small test case (attached zip file) with sample DB to reproduce the issue.  ... That file is probably empty you can check it in the Explorer. > The Size of both DB files is exactly the same ...

 
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InternalException - error reading field from "queue" database

I trying to use an objectdb database as a persitent queue but have started getting the following error on the receiver side: ... theres a way i can get it to you. Looking at it in explorer shows a lot of "Broken References" (see screenshot) so I guess the ...   explorer.jpg edit ...

 
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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: #1 2011-06-09 08:24 Dear all, I have a problem with adding items (entities) into other entity list. When the classes are not ...

 
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persistence.xml classes not respected by ObjectDB

Hi! I have the following persistence.xml. The problem is that ObjectDB loads all the classes in P1 (+ their embeddable classes). P2 is created properly, but P1 gets all entity classes (from P2 also). How can this be avoided, so that both P1 and P2 get just the classes that were specified to each? There is no place in code where P1 tries to access classes from P2, so it makes no sense. #1 2013-08-20 07:48 Hi! I have the following persistence.xml. The problem is that ObjectDB loads all the classes in P1 (+ the ...

 
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New to Product & Having An Issue

Greetings ObjectDB Users! I'm new to the product, and I've setup a simple test after reading the tutorial, and I'm running into some issues with queries, specifically querying by primary key.   I have a domain object class Called Department, which has a member of type DomainId.  DomainId has two member fields:  String accountId and String objectId.  The following code shows these two classes.... the Department object in the database with the ObjectDB Explorer, including it's embedded DomainId which is filled out with the random ...

 
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Persist error @ManyToMany how to define correct entities relationships

I have Product entities containing a list of Category enties. Each product can have multiple Category but all sue the same limited set of Category entities. There is not changes made to Category from Product. The category ID is taken from the webservice Object ID (unique too). ... they were embeddable entities) i added screenshot of the explorer   package testodb ;   import java. ...