About update

api-jpa

javax.persistence.Query

Interface used to control query execution.(Interface of JPA)

 
forum_thread

Managing software release cycles.

How do you manage software release cycles with objectDB? For example we might have different installation of a given web application, and we might need to introduce new fields with default values or to change something in the database "structure".  How can we apply the update script without downloading the entire DB file? Are there any command line tools like sqlPlus to connect to a DB and execute queries / scripts? ... the database "structure".  How can we apply the update script without downloading the entire DB file? Are there any ... Database Schema Evolution Schema Update As you can see most schema changes are either fully ...

 
release

2.3.0

... ). Completed missing documentation (e.g. UPDATE & DELETE queries). Fixed memory leak issues. ... and Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ...

 
forum_thread

OptimisticLockException

Have read read the documentation on optimistic locks, still not sure how to deal with these exceptions: [ObjectDB 2.2.5_04] javax.persistence.RollbackException Failed to commit transaction: Optimistic lock failed for object   ... would be very inefficient. But you can do that update explicitly in your application - e.g. by invoking refresh . You may ... not help either, given #3 above, ie: it seems like last update wins, and changes can be overridden. So it seems that the best ...

 
forum_thread

Optimistic lock failed

Hi, I frequently see exceptions during development such as com.objectdb.o._RollbackException: Failed to commit transaction: Optimistic lock failed for object com.example.MyEntity#3 (object has version 1 instead of 3) Could you please explain what this means, and what I can do about it. Thanks you, Carl     ... in next versions. Update:  The configuration above is now documented and part of ... To post a reply and/or subscribe to update notifications - please login . ...

 
release

2.4.7

... when there is no MAC address. Fixed an update query error message on an attempt to update a collection ( issue #173 ). Fixed a ... ). Completed missing documentation (e.g. UPDATE & DELETE queries). Fixed memory leak issues. ...

 
forum_thread

Object DB In memory : without Filestore

Hello, I raised this question earlier as well, we want to explore if I can run the ObjectDB completely in Memory ? (without any writes to Disk, it's okay to loose the data if the node is down ). I think that will give the best performance. The reason we are exploring is restoring state is possible for us through replaying the logs, however we want easier data structures which is really good with ObjectDB along with Concurrency controls and transaction mgmt. Let us know if it is possible to run the Object DB completely in memory without disk storage. ... drive software that you choose.   Update: Support of Memory Mode was added to ObjectDB in version 2.6.4. ... To post a reply and/or subscribe to update notifications - please login . ...

 
forum_thread

Detaching objects after JOIN FETCH

Hi, I have a question about detaching objects after issuing query with JOIN FETCH. Let's say I have two classes: public class A { @ManyToOne B bClass } public class B { @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL) List<A> aClasses; } Now, I want to fetch all B classes with all A classes skipping lazy loading: ... system and hopefully will be fixed soon. Update: The issue is fixed now. ObjectDB Support ... To post a reply and/or subscribe to update notifications - please login . ...

 
release

2.3.5

... ). Completed missing documentation (e.g. UPDATE & DELETE queries). Fixed memory leak issues. ... and Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ...

 
forum_thread

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 ... you rebuild the database (see the links in #2). Update: Starting ObjectDB 2.6.6 new indexes are automatically built and ... To post a reply and/or subscribe to update notifications - please login . ...