About FlushModeType
Setting and Tuning of JPA Queries
Explains various JPA query settings - result range, flush and lock.... Flush policy in JPA is represented by the FlushModeType javax.persistence.FlushModeType JPA enum Flush mode setting. See JavaDoc Reference ...
JPA Miscellaneous
Reference (JavaDoc) of JPA API, including PersistenceUtil, PersistenceUnitUtil, Cache, CacheRetrieveMode, CacheStoreMode, FlushModeType, LockModeType, PessimisticLockScope.... of various JPA operations: javax.persistence.FlushModeType javax.persistence.LockModeType ...
values()
Returns an array containing the constants of this enum type.(Static Method of javax.persistence.FlushModeType)
Entity has be persistended,but query not fetched?
I create a new entity T newT and persistend it,then I create a query "select t from T t" to fetch all T entities.But then the newT is not contain in the query result. Why? ... code order: query. setFlushMode ( FlushModeType . AUTO ) ; query. getResultList ( ... ) ; query. setFlushMode ( FlushModeType . AUTO ) ; System. out . println ...
Conflicting modifiers .... (javax.persistence.Id, javax.persistence.ManyToOne)
I have two classes a Container type class and another class that is 'contained' by that class. The contained class, CompoundKeyMapItem, represents an alternate implementation of an object held in a Map, and uses a Compound Primary Key. The contained class therefore uses an @IdClass. This all works fine on Eclipselink. However when I try and run this in ObjectDb I get the following error; ... ; import javax. persistence . FlushModeType ; import javax. persistence . Id ; ... ) ; q. setFlushMode ( FlushModeType . AUTO ) ; try { long l = ...
Duplicate Entity class names causes Exception in Query
I have two Entities which have the same class name but reside in different packages, only one of them is mentioned in the persistence.xml. I a NamedQuery I use the unqualified class name of one of these entities. If I execute that query I get an exception; ... class ) ; q. setFlushMode ( FlushModeType . AUTO ) ; try { return q. ... wish to see its results q. setFlushMode ( FlushModeType . AUTO ) ; try { long l = ...
Should derived fields of an EmbeddedId be manually maintained by app code?
If I have an Entity which has a primary key which is derived and I am implementing it using @EmbeddedId, am I responsible for maintaining the derived fields of the @EmbeddedId? I could not find anything in the JPA 2.0 spec http://download.oracle.com/auth/otn-pub/jcp/persistence-2.0-fr-oth-JSpec/persistence-2_0-final-spec.pdf?e=1317047713&h=54831c176e81a244a4c309e13eba0b27 which tells me what to expect. ... ; import javax. persistence . FlushModeType ; import javax. persistence . Id ; ... , this ) ; q. setFlushMode ( FlushModeType . AUTO ) ; try { long l = ...
valueOf(name)
Returns the enum constant of this type with the specified name.(Static Method of javax.persistence.FlushModeType)
javax.persistence.TypedQuery
Interface used to control the execution of typed queries.(Interface of JPA)
