19 | Spring Data JPA - PersistenceException thrown.Method.invoke(Method.java:497) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.invokeProxyMethod(AbstractEntityManagerFactoryBean.java:388) at org.springframework.orm.jpa ... .objectdb.o._PersistenceException: Failed to validate xml file /<my code dir>/META-INF/orm-objectdb.xml |
17 | Persist not working when ObjectDB and another db is used in the same application (through spring) with different tx managers" /> </bean> <bean id="entityManagerFactory" class="org.springframework.orm.jpa ... .springframework.orm.jpa.vendor.HibernateJpaVendorAdapter" /> </property> <property name ... ="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref |
17 | JPA vs JDO - which is more efficient for OneToMany queries?> orders; } @Entity class Order { } It is true, however, that in ORM-based implementations ... Order to Customer in the above example is more efficient), but that is true for both JPA and JDO ORM ... in ORM-based implementation and requires a JOIN table and a query for navigation, is implemented |
16 | Problem upgrading.orm.jpa.JpaSystemException: Failed to set reference value of field property at.co.pjm.tracker ... .channelConfigurationSets using reflection at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:418) ~[spring-orm-4.2.3.RELEASE.jar:4.2 |
14 | JPA Annotations for RelationshipsRelationships are persistent fields in persistable classes that reference other entity objects. The four relationship modes are represented by the following annotations: Unlike ORM JPA implementations, ObjectDB does not enforce specifying any of the annotations above. Specifying a relationship |
14 | Updating JPA Entity Objects. Collections are more portable to ORM JPA implementations and provide better automatic change tracking |
14 | JPA Persistence Unit specify XML mapping files that are added to the default META-INF/orm.xml mapping file. Every annotation |
14 | Locking in JPA some ORM JPA providers) is defined in the entity class or not. Pessimistic Locking The main |
14 | Company and is much faster than any ORM-based JPA implementation. ObjectDB Software's customers include fortune |
0 | javax.jdo.Constants.supportedOptions() String ORM_DTD_RESOURCE The name of the resource for the DTD of the standard JDO object ... -relational mapping metadata file. Since: JDO 2.1 String ORM_XSD_NS The standard JDO object-repository mapping ... is http://java.sun.com/xml/ns/jdo/orm. Since: JDO 2.1 String ORM_XSD_RESOURCE The name of the resource |
