About getting started

forum_thread

Not able to update records

Hi,   I am tring to update the simple object by using Update query by i am getting following exception [ObjectDB 2.4.4_15] javax.persistence.TransactionRequiredException Attempt to run update query when no transaction is active (error 611) at com.objectdb.jpa.JpaQuery.executeUpdate(JpaQuery.java:758) Following is the code i am executing   ... to update the simple object by using Update query by i am getting following exception [ObjectDB 2.4.4_15] ...

 
forum_thread

ArrayIndexOutOfBoundsException

Hi, I've been getting the following exception when trying to query ObjectDB in server mode version 2.3.4_05. ... Hi, I've been getting the following exception when trying to query ObjectDB in server mode ... to delete the DB and create it from scratch and am now getting a similar error: [ObjectDB 2.3.4_05] Unexpected exception ...

 
forum_thread

ObectDb 2.3.6 in OSGi environment

Hello, I'm trying to use ObjectDb within OSGi bundles. I have one bundle for db accens which uses ObjectDb and another bundle which includes the POJO models. Everytime I start in plugin evironement i get an PersistenceException, because my POJO not found. If try the same test in normal Java environment everthing works fine. Can you please advice? Thx Peter #1 2012-06-29 02:17 Hello, I'm trying to use ObjectDb within OSGi bundles. I have one bundle for db accens which uses Obj ...

 
forum_thread

Mysterious "Attempt to persist a reference to a non managed instance" error

I've been working with ObjectDB for the past several months, and it's behaved pretty much as expected. I made a few modifications to a working set of classes today, and it's started throwing exceptions at commit time. I've stripped it down to a  set of files that seem to be of trivial complexity, but it's still failing. It involves two entities, Index and Ostrich. The thing to note is that the Index structure is recursive through maps; but that's never caused any problem for me in the past. ... to a working set of classes today, and it's started throwing exceptions at commit time. I've stripped it down to ... ) ; } } I had started with the expectation that the cascading annotations would be sufficient ... persisted in the transaction---and I'm still getting an exception: Exception in thread "main" [ObjectDB 2.2.6_03] ...

 
forum_thread

Problem undeploying Glassfish3.1.1 web application cleanly

objectdb-2.3.7_18 When I undeploy a Glassfish3.1.1 web application when using @PersistenceContext EntityManager injection, using the undeploy feature under the Glassfish server node  of Netbeans7.1, I get the following otherwise harmless error: ... because it has not yet been started, or was already stopped at ...

 
forum_thread

Insert time increases as db grows.

Hello, ... seconds against 30 seconds with hibernate+mysql. Then I started the test again and got 9,5 seconds; then 11 seconds and so on. Should I ... also tried to use enhancer manually on classes, but still getting the same results: insertion time grows as db grows. ...

 
forum_thread

Different behavior with persist() and queried instances?

Hi, We have a simple class that by itself contains (among others) a property pointing to a collection: class Bla {  @OneToMany(cascade = CascadeType.ALL) private List<AttributeEntity> metaAttributes = new ArrayList<AttributeEntity>(); } ... 12:30 I am getting closer.. looks like persist works though in a sample project, *after* ... which of course doesn't mark the object dirty when getting changed so a following merge call doesn't bring any success either. ...

 
forum_thread

query on calendar class

Hello!   I'm looking for help to build query on calendar class. I need to get objects where Calendar.DAY_OF_WEEK is FRIDAY or any other. My class: @Entity public class Cdr {     private static final long serialVersionUID = 1L;        @Id @GeneratedValue     private long serialID;     private String A;     @Temporal(TemporalType.TIMESTAMP) private Calendar start; I tested: #1 2014-07-27 21:24 Hello!   I'm looking for help to build query on calendar class. I need to get objects wh ...

 
forum_thread

Listing large number of complicated objects with paging.

Hi, For last few hours I was working on a problem with bad performance and memory problems with such a simple query: select prod from Product prod order by prod.id ASC Right now I have 55541 'Product' (attached to this post) entities in database and I'm trying to speed listing them with paging. The problem is, that running code that looks like this: #1 2011-11-15 18:32 Hi, For last few hours I was working on a problem with bad performance and memory problems with such a si ...

 
forum_thread

Jboss 6 persistence.xml startup error

Hi,   I'm trying to migrate a small EJB 3.1 project from Postgres to ObjectDb to test out feasibility, but I keep getting stuck on setting up the persistence.xml on JBoss 6 AS.   Here is my setup: ------- Start persistence.xml ------- ... Postgres to ObjectDb to test out feasibility, but I keep getting stuck on setting up the persistence.xml on JBoss 6 AS. Here is ...