About change

api-jpa

javax.persistence.RollbackException

Thrown by the persistence provider when EntityTransaction.commit() fails.(Exception of JPA)

 
api-jpa

javax.persistence.NoResultException

Thrown by the persistence provider when Query.getSingleResult() or TypedQuery.getSingleResult()is executed on a query and there is no result to return.(Exception of JPA)

 
forum_thread

Join performance in Objectdb

select count(e) from Meta e, ImageNet i, Page p where e.idImage=i.id and e.idPage=p.id; So simple a command cause me half an hour and is running now! Each table has about 160K records. What formula can predict the time for such counting? TIA ... following test but could get your results. Can you change this test to demonstrate the execution time difference that you ...

 
issue

Unexpected exception (Error 990) com.objectdb.o.InternalException

Hello, we get an exception if we use Enhanced Entities. With not enhanced Entities we get no error. ...   Now it's really interesting: If we change the loggingLevel   from "fatal" to "warning", we get other ...

 
api-jpa

javax.persistence.TransactionRequiredException

Thrown by the persistence provider when a transaction is required but is not active.(Exception of JPA)

 
doc

java.lang.RuntimeException

(Exception of java.langException RuntimeException)

 
manual

[ODB1] Chapter 1 - About ObjectDB

Describes the main features and editions of ObjectDB 1.0 for Java/JDO. ObjectDB for Java/JDO is a powerful Object Database Management System (ODBMS) written entirely in Java. It can efficiently handle a wide range of database sizes, from a few KBs to hundreds of GBs. It has a small footprint, high performance, and a flexi ...

 
forum_thread

java.sql.Time field off by 30 minutes

Hihi, I'm wondering if this is a bug. I have a simple entity with java.sql.Time field. On writing and readback, the field is found to be 30 minutes off. It is observed on objectdb explorer as well. Timestamp works perfectly fine. Ps. dont think its a UTC issue. My system is set at far off UTC+30min time.   ... UTC+8 seems to work fine though. Are u able to change the system timezone to my location and test?? I'm using ...

 
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

Compile time enhancement using build.xml of a Netbeans web application

Does anybody have a complete, working example of the adaptations required in the build.xml of a Netbeans web application project to specify ObjectDB compile time enhancement, for both single file and whole project compilation ? The ObjectDB 2.3 manual gives the following tip: #1 2012-03-20 00:43 Does anybody have a complete, working example of the adaptations required in the build.xml of a Netbeans web appl ...