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JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

"> <persistence-unit name="guest-pu" transaction-type="JTA">      <description>ObjectDB Persistence Unit ... > </persistence-unit> </persistence> clicker clicker I noticed that by changing the PersistenceContext ... java.util.List; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax
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javax.persistence.spi.PersistenceProviderResolverHolder

javax.persistence.spi Class PersistenceProviderResolverHolder java.lang.Object javax.persistence.spi.PersistenceProviderResolverHolder Holds the global javax.persistence.spi ... getPersistenceProviderResolver() Returns the current persistence provider resolver. Returns the current persistence provider
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javax.persistence.EnumType

javax.persistence Enum EnumType java.lang.Object java.lang.Enum<javax.persistence.EnumType> javax.persistence.EnumType Implemented Interfaces: Serializable, Comparable<EnumType> Defines mapping for enumerated types. The constants of this enumerated type specify how a persistent
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javax.persistence.PersistenceContextType

javax.persistence Enum PersistenceContextType java.lang.Object java.lang.Enum<javax.persistence.PersistenceContextType> javax.persistence.PersistenceContextType Implemented Interfaces ... persistence context is to be used in PersistenceContext. If not specified, a transaction-scoped
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javax.persistence.FlushModeType

javax.persistence Enum FlushModeType java.lang.Object java.lang.Enum<javax.persistence.FlushModeType> javax.persistence.FlushModeType Implemented Interfaces: Serializable, Comparable ... .AUTO is set on the Query or TypedQuery object, or if the flush mode setting for the persistence context
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javax.persistence.PessimisticLockScope

javax.persistence Enum PessimisticLockScope java.lang.Object java.lang.Enum<javax.persistence.PessimisticLockScope> javax.persistence.PessimisticLockScope Implemented Interfaces: Serializable, Comparable<PessimisticLockScope> Defines the values of the javax.persistence.lock.scope
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javax.persistence.Query

javax.persistence Interface Query Subinterfaces: TypedQuery Interface used to control query ... : IllegalStateException - if called for a Java Persistence query language SELECT statement or for a criteria ... : IllegalStateException - if the query is found not to be a Java Persistence query language SELECT query or
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javax.persistence.EntityExistsException

javax.persistence Exception EntityExistsException java.lang.Object java.lang.Throwable java.lang.Exception java.lang.RuntimeException javax.persistence.PersistenceException javax.persistence.EntityExistsException Implemented Interfaces
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javax.persistence.CascadeType

javax.persistence Enum CascadeType java.lang.Object java.lang.Enum<javax.persistence.CascadeType> javax.persistence.CascadeType Implemented Interfaces: Serializable, Comparable ... cascade=ALL is equivalent to cascade={PERSIST, MERGE, REMOVE, REFRESH, DETACH}. Since: JPA 1.0
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javax.jdo.JDOEntityManager

() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns ... of interest. If the classes parameter is specified as null, events for all persistent classes and interfaces

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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