Example #3Source File: OptimisticLockingIntegrationTest.java From tutorials with MIT License 6 votes @Test(expected = OptimisticLockException.class) public void givenVersionedEntitiesWithLockByFindMethod_whenConcurrentUpdate_thenOptimisticLockException() throws IOException { EntityManager em = getEntityManager...
entityManager.lock(e, LockModeType.READ); entityManager.refresh(e); Update some property of the entity (and merge) Commit Raw ... javax.persistence.OptimisticLockException: Newer version [2] of entity [[support.hibernate.entity.Employee#THE_KEY_HERE]] found in database at org.hibernate.internal...
Article Spin Lock Example in Java Paper "The Performance of Spin Lock Alternatives for Shared-Memory Multiprocessors" by Thomas E. Anderson Paper "Algorithms for Scalable Synchronization on Shared-Memory Multiprocessors" by John M. Mellor-Crummey and Michael L. Scott. This paper received the 2006 ...
Example #5Source File: ExceptionControllerAdvice.java From ZTuoExchange_framework with MIT License 5 votes /** * 拦截乐观锁失败异常 * * @param ex * @return */ @ResponseBody @ExceptionHandler(value = ObjectOptimisticLockingFailureException.class) public MessageResult myErrorHandler(ObjectOpt...
@OptimisticLocking(type = OptimisticLockType.DIRTY) @DynamicUpdate public class Product { //code omitted for brevity }By default, Hibernate includes all table columns in every entity update, therefore reusing cached prepared statements. For dirty properties optimistic locking, the changed columns are ...
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This can lead to high lock contention. In contrast, optimistic locking lets different transactions read the same state concurrently and checks data integrity only at update time. A long transaction performs a series of DBMS commands that extend over a long period — hours, days, weeks, or even...
Thread-2 failed: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [com.javatechie.entity.Seat#2] Pessimistic Locking in Action: Seat Booking Example cURL curl -X 'GET' \ 'http://localhost:9191/booking/optimistic/2' \ ...
static OptimisticLockType OptimisticLockType.valueOf(String name) Returns the enum constant of this type with the specified name. static OptimisticLockType[] OptimisticLockType.values() Returns an array containing the constants of this enum type, in the...
public interface FlightRepository extends CrudRepository<Flight, Long> { @Lock(LockModeType.PESSIMISTIC_WRITE) Optional<Flight> findWithLockingById(Long id); } and rerun the booking tickets example. One of the threads will throw ExceededCapacityException and only two tickets will be in the tickets...