javax.persistence.FlushModeType Maven / Gradle / Ivy
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// $Id: FlushModeType.java 17752 2009-10-15 01:19:21Z [email protected] $
// EJB3 Specification Copyright 2004-2009 Sun Microsystems, Inc.
package javax.persistence;
/**
* Flush mode setting.
*
* When queries are executed within a transaction, if
* FlushModeType.AUTO
is set on the {@link
* javax.persistence.Query Query} or {@link javax.persistence.TypedQuery
* 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
* TypedQuery
object, the persistence provider is
* responsible for ensuring that all updates to the state of all
* entities in the persistence context which could potentially affect
* the result of the query are visible to the processing of the
* query. The persistence provider implementation may achieve this by
* flushing those entities to the database or by some other means.
*
If FlushModeType.COMMIT
is set, the effect of
* updates made to entities in the persistence context upon queries is
* unspecified.
*
*
If there is no transaction active, the persistence provider
* must not flush to the database.
*
* @since Java Persistence 1.0
*/
public enum FlushModeType {
/** Flushing to occur at transaction commit. The provider may flush
* at other times, but is not required to.
*/
COMMIT,
/** (Default) Flushing to occur at query execution. */
AUTO
}