About named queries

issue

[Explorer] Editing Database Files

Some features of ObjectDB 1 Explorer have not been implemented yet in the new Explorer of ObjectDB 2. The new Explorer of ObjectDB 2 is currently a viewer rather than editor, and database files are always opened in read only mode. The ability to create new database objects and edit existing database object has to be reimplemented in the ObjectDB 2. Feature Request Version: Priority: High Status: Fixed Replies: 4 Type:  Feature Request ...

 
issue

probable error in text of manual about embeddable classes

at http://www.objectdb.com/java/jpa/entity/types website in "Embeddable Classes" section there is a phrase "e.g. their instances cannot be shared by different entity objects" which seems to be wrong. Bug Version: 1.04 Priority: Normal Status: Closed Replies: 1 Type:  Bug ...

 
forum_thread

objectdb explorer in ver 2.2 and 1.0

Hi   In first step  I have evaluated JPA API now I'm testing JDO API and I'have spotted that object explorer has lower functionality than in ver 2.2 eg garbarage collector or xml import/export functions are missing, could You explain why?   br Tomasz ... features to the Explorer, including support of running queries and editing databases. Additional features will be added to the ...

 
forum_thread

Multi-tenant setup

Hi, does anybody have experience with multi tenant setup of objectDB. For example using multiple schema or multiple database. How to handle connections between app (Jboss Wildfly) and pass query request to appropriate database, how to dynamically add new database or schema. There are lot of discussions on how to do it with hibernate Thanks     #1 2017-01-05 17:14 Hi, does anybody have experience with multi tenant setup of objectDB. For example using multiple schema o ...

 
issue

unexpected exception

I received the following exception while trying to process a query: Bug Version: 2.0.4 Priority: Low Status: Duplicate Replies: 1 Type:  Bug ...

 
forum_thread

Online backup with JDO

Hi, I would like to try the Online Backup tool as I am making backups up to now with the not encouraged file-copying method while the database is online. So my first question is to this file-copying. I've read at the Database Doctor that copying the db file while it is online may cause corrupted DB file. Does this mean that the copy can be corrupted or even the source file ? My second question is about starting the online backup. The manual suggests starting it via the EntityManager with the code #1 2014-07-04 20:10 Hi, I would like to try the Online Backup tool as I am making backups up to now with the not encoura ...

 
forum_thread

Using of Second Level Cache

In our use case we want to find some entity types always again very quickly by primary key or query in many short transactions. The entity MyEntity1 and its relationships to MyEntity2/MyEntity3 was load and the entity MyEntity1 is taken in the second level cache, the other entity types not. Are the relationships to MyEntity2/MyEntity3 still always referenced although the entity manager is closed, so that the memory for MyEntity2 and MyEntity3 can never be released by garbage collector? #1 2016-06-22 08:04 In our use case we want to find some entity types always again very quickly by primary key or query in many short ...

 
issue

Lazy loading of mapped by (inverse) singular references

Feature Request Version: 2.0.0 Priority: Normal Status: Fixed Replies: 1 Type:  Feature Request ...

 
forum_thread

Does aggregate function "greatest" work on entity objects?

do not come to the function "compareTo" @Entity public class ChatHistoryItem extends AbstractObject implements Comparable {     private static final long serialVersionUID = 1L; ... Entity objects are not comparable in queries. See the list of Comparable Data Types in the manual. ...

 
forum_thread

Unexpected behaviour upon update. Bug?

This sample does not work as I expect.  Why?  Is it a bug? Below is the complete program. Expect: 3 Get: 4 import java.io.Serializable; import java.util.List; import javax.persistence.*; @Entity public class Update implements Serializable   {     @Id     int i;     int v; #1 2011-09-19 15:14 This sample does not work as I expect.  Why?  Is it a bug? Below is the complete program. Expec ...