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add overload of refresh() accepting an EntityGraph #672

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add overload of refresh() accepting an EntityGraph #672

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20 changes: 20 additions & 0 deletions api/src/main/java/jakarta/persistence/EntityManager.java
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Original file line number Diff line number Diff line change
Expand Up @@ -885,6 +885,26 @@ void refresh(Object entity, LockModeType lockMode,
void refresh(Object entity,
RefreshOption... options);

/**
* Refresh the state of the given managed entity instance from the
* database, along with all associated entities reachable by
* following the given {@link EntityGraph}, overwriting changes
* made to the entity, if any. This operation does not cascade to
* associations marked {@link CascadeType#REFRESH cascade=REFRESH}
* unless they are included in the given entity graph.
* @param entity a managed entity instance
* @throws IllegalArgumentException if the instance is not an entity
* or if the entity is not managed
* @throws TransactionRequiredException if there is no
* transaction when invoked on a container-managed
* entity manager of type
* {@link PersistenceContextType#TRANSACTION}
* @throws EntityNotFoundException if the entity no longer exists in
* the database
* @since 4.0
*/
<T> void refresh(T entity, EntityGraph<T> entityGraph);

/**
* Clear the persistence context, causing all managed entities to
* become detached. Changes made to entities that have not already
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