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98

New Index causing troubles

Hello, we introduced a new index upon a String field Order.typeName, added to package.jdo as ... ="index" value="typeName"/> </class> After starting our app with the new index on one database ... .objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o.InternalException
98

Join query problem with new statetment

= em.createQuery(     "select new InspirationsPerSupplierResult(insp.id, insp.name, p.id, p.name ... the exception might not be related to using NEW. There is an unexpected state during query execution ... - the old embeddable objects and the new entity objects. For more precise diagnosis - please post
98

New to Product & Having An Issue

Greetings ObjectDB Users! I'm new to the product, and I've setup a simple test after reading ... (); this.departmentId = new DomainId(DomainId.getNewId(), DomainId.getNewId()); } @Test public void createDepartment(){ Department department = new Department(this.departmentId
97

Failed to create a new file 'target\objectdb\log\archive' (error 112)

(see below) fails because ODB can't create a new file in a non-existing folder hierarchy. The user ... ); em.close(); } catch (Exception e) { throw new RuntimeException("Unable ... to create a new file 'target\objectdb\log\archive' (error 112) [11:47:18]: [com.rbccm.felix
97

Insert a new entity class in a class hierarchy does not work

Hello, we have an entity class hierarchy and we want to insert a new entity in this hierarchy ... , because the class hierarchy had already always existed and the "new" entity class needed still only the @Entity annotation, all remaining fields got null as a value. Only if the new entity
97

Attempt to begin a new transaction when a transaction is active

._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause com.objectdb.o.UserException: Attempt to begin a new transaction when a transaction is active I
97

NullPointerException while setting a new property value

Support Please try a new build - 2.4.4_02. It will not solved the problem yet, but hopefully will generate ... to entities from the collection. NPE is thrown at some point while database thread is writing new data ... . We create new EntityManager for every operation on database , so it should be thread safe. public
19

New entity objects are duplicated on merge cascading

When merge is cascaded to a new entity object that has not been persisted ... ();         em.getTransaction().begin();         em.persist(new Book());         em.getTransaction().commit ... ();         em.getTransaction().begin();         book.chapters = Arrays.asList(new Chapter());         em.merge
19

New issues with queries using build 2.7.6_08

.executionConfig = config btc_es BTC EmbeddedSystems Your new report was moved to a new thread, as ... #2153, as discussed. You may want to check build 2.7.6_07. Build 2.7.6_08, however, includes some new ... users. Unfortunately according to your report, these changes also introduce a new issue
19

new objects not available in mappedBy associations

Given a mappedBy association: e.g: @OneToMany(mappedBy="department") public List <Employee> employees; creating a new mapped class, e.g. new Employee, won't result in this object being available in the same transaction: ie: for (Employee e : department.employee) won't include the new object

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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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