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7

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
7

Error with org.springframework.data.jpa.domain.AbstractPersistable

I 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
7

Data migration from SQLServer to ObjectDB

Hi, 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
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

Using List to save data

Hello, 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

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
7

DB Doctor sets type to "unknown" for new fields

to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... to change the value from null to false: UPDATE RecordingMetaData AS r SET r.emergency=false
7

using objectdb.jar in writing data to mariadb or mysql db

using objectdb.jar in writing data to mariadb or mysql db
7

Significant I/O costs during batch update or insert data.

Significant I/O costs during batch update or insert data.

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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