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on which they were invoked). Flush Mode (setFlushMode) Changes made to a database using an EntityManager em can be visible ... is executed, uncommitted database changes (if any) have to be flushed to the database in order to be visible to the query. Flush policy in JPA is represented by the FlushModeType enum, which has two values

We get an internal objectdb error, when we execute a flush . Why? What's wrong? It performs ... :1518) ~[na:na] at com.objectdb.o.OBM. flush (OBM.java:768) ~[na:na] at com.btc.ep.coverage.ccode.bl ... :911) ~[na:na] at com.objectdb.o.OBM. flush (OBM.java:765) ~[na:na] ... 19 common frames omitted btc

JPA Method in javax.persistence.EntityManager void flush () Synchronize the persistence context to the underlying database. Throws: TransactionRequiredException - if there is no transaction or if the entity manager has not been joined to the current transaction PersistenceException - if the flush fails Since: JPA 1.0

I'm having trouble with flush () and clear() in a loop inside a transaction not persisting modified objects to database. Sometimes it does other times it doesn't. Here is my Entity. import javax.persistence.Basic; import javax.persistence.Entity; import javax.persistence.Id; import javax

). @PostPersist - after storing a new entity in the database (during commit or flush ). @PostLoad ... the EntityManager . @PostUpdate - after updating an entity in the database (during commit or flush ... - after deleting an entity from the database (during commit or flush ). An entity class may include callback

entities are always held by strong references in the persistence context (until commit or flush ... of either global or local setting) should be applied during commit and flush . Note: Both JPA and JDO require cascading the persist operation twice, first during persist and later on commit or flush

. The combination of the clear and flush methods can be used to save memory in large transactions: em. getTransaction (). begin (); for (int i = 1; i

that prevents duplicate values in the indexed field. A PersistenceException is thrown on commit (or flush

been flushed to the database are discarded. Detached entity objects are discussed in more detail in the Detached Entities section.

a version field . During commit (and flush ), ObjectDB checks every database object that has to be updated

The following exception was thrown when my app attempted to flush an objectdb database: Caused by: rbccm.felix.framework.ApplicationException: Error flushing graph container at rbccm.felix.objectdb.workflow.ObjectDbGraphContainer. flush (Unknown Source) at rbccm.felix.objectdb.workflow

? Is there a special operation (e.g. flush ) just before adding the last element? Does it happen  ... , it is always the last element yes, there is probably a flush before adding the last element yes ... ;       em. flush ();         long id = entity.id

  The following exception occures if we call entityManager. flush () where the corresponding ... ? entityManager.getTransaction().commit() instead of a entityManager. flush () works correctly. Unfortunately I have not found a simple example to reproduce this exception. The entity model of the flushed JPA

Today I received the exception below on running the following code: IExecutionGraph loadedgraph = em.find(ExecutionGraph.class, id); if(loadedgraph == null) { em.persist(instance); em. flush ... ) at com.objectdb.o.OBM.bI(OBM.java:818) at com.objectdb.o.OBM. flush (OBM.java:739) at rbccm.felix

temporary file that holds information about uncommitted flushed updates when the EntityManager ... " system property, which is probably used only by your company. It was added to support large flush ... flush operations. However, we cannot provide information regarding the expected date release

getFirstResult . FlushModeType getFlushMode () Get the flush mode in effect for the query execution. If a flush mode has not been set for the query object, returns the flush mode in effect for the entity manager. Return: flush mode Since: JPA 2.0 Map getHints () Get the properties and hints and associated

getFirstResult . FlushModeType getFlushMode () Get the flush mode in effect for the query execution. If a flush mode has not been set for the query object, returns the flush mode in effect for the entity manager. Return: flush mode Inherited from: Query Since: JPA 2.0 Map getHints () Get the properties

.FlushModeType Flush mode setting. When queries are executed within a transaction, if FlushModeType.AUTO is set on the Query or javax.persistence.TypedQuery object, or if the flush mode setting for the persistence context is AUTO (the default) and a flush mode setting has not been specified for the Query or

getFlushMode () Get the flush mode in effect for the query execution. If a flush mode has not been set for the query object, returns the flush mode in effect for the entity manager. Return: flush mode ...  flushMode) Set the flush mode type to be used for the query execution. The flush mode type applies

flushing the changes before user 2 is trying to remove the object, since then there is a conflict between two different operations on the same object by two different users. Note that user 1 may flush the changes implicitly by running a query. You can run specific queries with COMMIT flush mode to avoid

that have not been flushed to the database will not be persisted. Since: JPA 1.0 void close () Close ... Since: JPA 2.0 void flush () Synchronize the persistence context to the underlying database. Throws ... to the current transaction PersistenceException - if the flush fails Since: JPA 1.0 CriteriaBuilder

JDO Method in javax.jdo.PersistenceManager void flush () Flushes all dirty, new, and deleted instances to the data store. It has no effect if a transaction is not active. If a datastore transaction ... this method is held until the end of the transaction. If exceptions occur during flush

;flushMode ) Set the flush mode type to be used for the query execution. The flush mode type applies to the query regardless of the flush mode type in use for the entity manager. Parameters: flushMode - flush mode Return: the same query instance Since: JPA 1.0

JPA Method in javax.persistence.Query FlushModeType getFlushMode () Get the flush mode in effect for the query execution. If a flush mode has not been set for the query object, returns the flush mode in effect for the entity manager. Return: flush mode Since: JPA 2.0

;  FlushModeType  flushMode ) Set the flush mode type to be used for the query execution. The flush mode type applies to the query regardless of the flush mode type in use for the entity manager. Parameters: flushMode - flush mode Return: the same query instance Since: JPA 2.1

 flushMode ) Set the flush mode type to be used for the query execution. The flush mode type applies to the query regardless of the flush mode type in use for the entity manager. Parameters: flushMode - flush mode Return: the same query instance Since: JPA 2.0

JPA Enum Constant in javax.persistence.FlushModeType COMMIT Flushing to occur at transaction commit. The provider may flush at other times, but is not required to. Since: JPA 1.0

JPA Method in javax.persistence.EntityManager void setFlushMode (    FlushModeType  flushMode ) Set the flush mode that applies to all objects contained in the persistence context. Parameters: flushMode - flush mode Since: JPA 1.0

part of an API call, at, flush or at commit time. The current transaction, if one is active, will be not

when an pessimistic locking conflict occurs. This exception may be thrown as part of an API call, a flush or at commit

definition. This includes configuration information such as max results, hints, flush mode, lock mode

results, hints, flush mode, lock mode, result set mapping information, and information about stored

locking conflict occurs. This exception may be thrown as part of an API call, a flush or at commit

another PersistenceException may be thrown at flush or commit time.) IllegalArgumentException - if the instance is not

is responsible for updating the ordering upon flushing to the database to reflect any insertion, deletion, or

JPA Method in javax.persistence.EntityManager void clear () Clear the persistence context, causing all managed entities to become detached. Changes made to entities that have not been flushed to the database will not be persisted. Since: JPA 1.0

JPA Enum Constant in javax.persistence.FlushModeType AUTO (Default) Flushing to occur at query execution. Since: JPA 1.0

JPA Method in javax.persistence.EntityManager FlushModeType getFlushMode () Get the flush mode that applies to all objects contained in the persistence context. Return: flushMode Since: JPA 1.0

may be thrown at flush or commit time. The current transaction, if one is active and the persistence

the first level cache (by flush () and detach()). But an array of bytes, any ObjectDB memory ... option of using temporary files for flush / commit , as suggested in #6 above (i.e. with heap size ... temporary files in transaction flush /commit set a new system property:     

__odbtracker/m (type STA, value=Persistent-Deleted- Flushed ) which shows that the entity is deleted and flushed . The bug was introduced with ObjectDB Version 2.7.4_04, therefore in the moment ... the database and the change was flushed but not committed yet then the database maintains

the consistency of instances in the cache against the datastore. An implementation might flush instances as if flush were called, but it is not required to do so. If an optimistic transaction is active ... void flush () Flushes all dirty, new, and deleted instances to the data store. It has no effect

against the datastore. An implementation might flush instances as if flush were called, but it is not required

, for example during javax.jdo.PersistenceManager. flush or javax.jdo.Transaction.commit . It is called ... during javax.jdo.PersistenceManager. flush or javax.jdo.Transaction.commit . It is called before

JDO Annotation Unique Target: ElementType.TYPE, ElementType.FIELD, ElementType.METHOD Implemented Interfaces: Annotation Annotation for a database unique constraint. Used for database schema generation to create unique constraints. Also used to reorder database operations when flushing changes

of affected classes in the cache are first flushed to the datastore. Instances in the cache or brought

classes in the cache are first flushed to the datastore. Instances in the cache or brought into the cache

JDO Method in javax.jdo.listener.StoreLifecycleListener void postStore (    InstanceLifecycleEvent  event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager. flush or javax.jdo.Transaction.commit . It is called after the field values

JDO Method in javax.jdo.listener.StoreLifecycleListener void preStore (    InstanceLifecycleEvent  event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager. flush or javax.jdo.Transaction.commit . It is called before the method

by the application, then flush or checkConsistency should be called after attaching the instances