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> api/java/jpa/metamodel/IdentifiableType" title="Interface in javax.persistence.metamodel">IdentifiableType<X> , api/java/jpa/metamodel ... > , api/java/jpa/metamodel/Type" title="Interface in javax.persistence.metamodel


;api/java/jpa/Query/executeUpdate">executeUpdate method:   int deletedCount = em.api/java/jpa/EntityManager/createQuery_String">createQuery("DELETE FROM Country").api/java/jpa/Query/executeUpdate">executeUpdate


> UPDATE queries are executed using the api/java/jpa/Query ... query = em.api/java/jpa/EntityManager/createQuery_String">createQuery(     ... .api/java/jpa/Query/executeUpdate">executeUpdate(); A api

JPA Exceptions

> The root of the JPA exception class subtree is: api/java/jpa ... with no active transaction is represented by: api/java/jpa/exceptions ... that require transaction rollback are represented by: api/java/jpa/exceptions

javax.servlet.ServletException: Annotated methods must follow the JavaBeans naming convention. __odbHidden_getPropertyName

.validator.metadata.MetaConstraint.<init>(         at org.hibernate.validator.metadata.BeanMetaDataImpl.createMetaConstraint(         at org.hibernate.validator.metadata

> Subinterfaces: api/java/jdo ... > , api/java/jdo/Query" title="Interface in javax.jdo">Query api/java/jpa/AccessType" title="Enum in javax.persistence">

Is ObjectDB better than competing object databases?

databases: ObjectDB is unique in supporting the standard APIs. It is the only object database with built in support for the Java Persistence API (JPA). It also supports a more recent and advanced version of the Java Data Objects (JDO) API than competing object databases.

JPA 2 Annotations

> Annotations for JPA aware classes: api/java/jpa/annotations ... persistable classes: api/java/jpa/annotations" select="Field ... : api/java/jpa/annotations" select="Access Modes|Value Generation

Out of Memory - Slow leak?

metadata used for searching and the data itself. So in total the "consumer" process is connected to 4 ... is reperesented by 2 databases under the covers - one for small metadata objects which are used ... which can be anything from 1k to 10mb. We've proved the benefits of keeping the metadata & data


from api/java/jdo/PersistenceManager/getFetchPlan" title="Method of javax.jdo.PersistenceManager">PersistenceManager.getFetchPlan , api/java/jdo ... > , and api/java/jdo/Query/getFetchPlan" title="Method of javax.jdo.Query">Query