About named queries

forum_thread

Should I use ObjectDB and JDO?

My application is not meeting required performance because JavaDB appears to be my bottleneck.  I require a faster DB.  Surveying the Internet lead me to believe that ObjectDB might be just what I am looking for (to achieve MUCH faster database access).  But, I have a few concerns.   ... same JDO. ObjectDB supports most of JDO 2.1 (except sub queries and a few other features, as you can see in the issue tracking). ...

 
forum_thread

Add class to objectdb ?

Hello , i've made blank db project and opened with explorer.jar How can i add class file then push objects manually by explorer.jar   It only gave me blank : http://img543.imageshack.us/img543/7463/screenshot20130203at001.png       #1 2013-02-02 22:22 Hello , i've made blank db project and opened with explorer.jar How can i add class file then push ob ...

 
issue

Server out of memory exceptions

I've started to get memory exceptions on objectdb instances running as a server. The objectdb log reports this as: Bug Version: 2.2.8 Priority: Normal Status: Fixed Replies: 22 Type:  Bug ...

 
forum_thread

Failed to commit transaction: Attempt to commit a rollback only transaction

Anyone know what this means?? Suddenly cropped up.   Failed to commit transaction: Attempt to commit a rollback only transaction (error 613) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:271) at javax.jdo.Transaction$commit.call(Unknown Source) #1 2011-05-24 22:22 Anyone know what this means?? Suddenly cropped up. Failed to commit transaction: Attempt to commit ...

 
issue

com.objectdb.o.InternalException: null

After an error in a @PrePersist method in an Entity class, the database stopped working. Fortunately this was in development, but still worrying! The Entity class Bug Version: Priority: Normal Status: Active Replies: 5 Type:  Bug ...

 
issue

[ObjectDB 2.6.9] Unexpected exception (Error 990)

[2017-03-29 14:04:44 #1 client] [ObjectDB 2.6.9] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) 64-Bit Server VM 1.8.0_121 (on Windows 8.1 6.3). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException at com.objectdb.o.BYR.o(BYR.java:113) at com.objectdb.o.BYR.w(BYR.java:206) at com.objectdb.o.VUT.j(VUT.java:350) at com.objectdb.o.RST.C(RST.java:194) at com.objectdb.o.RTT.l(RTT.java:134) Bug Version: 2.5.6 Priority: High Status: Duplicate Replies: 6 Type:  Bug ...

 
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 ... in the database - the index will not be active (used in queries) until you rebuild the database (see the links in #2). ...

 
forum_thread

JRebel integration feature

Feature request: Dynamic class enhancement during development compatible with JRebel.... me to develop JSF backing beans and parts of EJBs (such as queries) live and even make changes to some aspects of JPA entities live, ...

 
issue

Negative snapshot user count exception

I found the following stack trace in my log files; it's cropped up a number of times: Bug Version: 2.5.2 Priority: Normal Status: Fixed Replies: 8 Type:  Bug ...

 
issue

ObjectDB 2 JDO Manual

The new ObjectDB Manual describes how to use ObjectDB 2 with JPA. An additional manual that focuses on using ObjectDB 2 with JDO can help JDO users. But since writing a new manual and then maintaining two similar manuals, one for JPA and the other for JDO requires sufficient effort, this will be done only if there is sufficient demand.  ... to be enhanced, that and the use of JDOQL when creating queries. edit ...