40 | Data portabilityHi, I've never used an OODB, I'm looking for a starting point but a recurrent concern is the Data Portability one. More clear: what options / strategies do I have to export / move my data ... (based on JPA/JDO standards), but what about Data Portability? Regards, lorenzo.sm Lorenzo Solano |
40 | ObjectDB data migration/extractionHi What is the way to extract data from ObjectDB to relational databases (Oracle). We need to feed an Oracle database with data for reporting/datawarehosing. Should JPQL be used or is there some ... , so you will have to migrate data using your own code. Notice that you should be able to use ObjectDB with BIRT to produce |
40 | index - data rewriteHi we have found that applying indexes on an existing table erases the data. Are we doing ... carefully if data is missing (very unlikely) or queries fail to return results (possible if a new ... )? What data is missing? Complete objects? specific fields in objects? fields related to the new index |
40 | Storing a tree of data (depth=3) can persist books. I have a problem with movies. The difference to the books? The depth of the data ... @Entity and @Embeddable) and a roleName (String) There are other data like list of directors, list ... regards, Thomas APPENDIX: I'm using lombok ... @Entity @Data @NoArgsConstructor |
39 | Error with org.springframework.data.jpa.domain.AbstractPersistableI am working on a Spring Boot application. I want to integrate ObjectDB with Spring Data JPA. I refer to the http://www.objectdb.com/database/forum/860 to do the configuration. When I start ... org.springframework.data.jpa.domain.AbstractPersistable.id at com.objectdb.o.MSG.d(MSG.java:62 |
39 | Data migration from SQLServer to ObjectDBHi, could someone recommend a good tool to use for data migration from SQLServer to ObjectDB. irene05 irene lan Unfortunately there is currently no such automatic tool. Using a JPA ORM library (e.g. Hibernate or EclipseLink) you can write your own conversion program that retrieves data from |
38 | Using List to save dataHello, How can I save data dynamically such as "List" in Java -> ArrayList, LinkedList, etc. thanks Seena Abdollahi Seena Abdollahi Software Engineer sabdollahi Seena Abdollahi Lists are persisted automatically as fields of entity classes. See chapter 2 and 3 of the manual for more details. support Support |
7 | javax.persistence.spi.PersistenceUnitInfo the root of the persistence unit that have not been explicitly listed are to be included in the set ... been explicitly listed are to be included in the set of managed classes. This value corresponds to the exclude ... of the persistence unit that have not been explicitly listed are to be included in the set of managed classes |
7 | StaticMetamodel throws NPE with Spring-Data in PathImpl.get()); } };] from Spring-Data i got a NullPointerException in com.objectdb.jpa.criteria.PathImpl |
7 | ObjectDB-2.6.9: Failed to commit transaction: Failed to set numeric value of field property Element.id using reflection to set numeric value of field property com.greensoft.objectdb.test.entity.Element.id using reflection ... .9] javax.persistence.RollbackException Failed to commit transaction: Failed to set numeric value ... : com.objectdb.o.UserException: Failed to set numeric value of field property com.greensoft.objectdb |
