io.hypersistence.optimizer.hibernate.event.session

Class OptimisticLockModeEvent

java.lang.Object

io.hypersistence.optimizer.core.event.AbstractEvent

io.hypersistence.optimizer.hibernate.event.session.SessionEvent

io.hypersistence.optimizer.hibernate.event.session.ManagedEntityEvent

io.hypersistence.optimizer.hibernate.event.session.OptimisticLockModeEvent

All Implemented Interfaces:

Event, Serializable

public class OptimisticLockModeEvent
extends ManagedEntityEvent

The OptimisticLockModeEvent indicates that a managed entity was locked using the LockModeType.OPTIMISTIC mode without having the associated database record locked with the LockModeType.PESSIMISTIC_READ or LockModeType.PESSIMISTIC_WRITE strategy. Without locking the underlying record, there's a window of opportunity between the version check and the transition commit, in which time the entity could still be changed by a concurrent transaction, therefore defeating the purpose of this optimistic locking mechanism. Ideally, the LockModeType.PESSIMISTIC_READ or LockModeType.PESSIMISTIC_WRITE should be acquired right before exiting the service method that triggers the transaction commit.

Since:

2.5.0

Author:

Vlad Mihalcea

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface io.hypersistence.optimizer.core.event.Event

Event.Priority

Constructor Summary

Constructors

Constructor and Description
OptimisticLockModeEvent(Class entityClass, Object entityIdentifier)

Method Summary

Modifier and Type	Method and Description
String	getDescription() Get the String description of this Event
Event.Priority	getPriority() Get the Event.Priority of this Event

Methods inherited from class io.hypersistence.optimizer.hibernate.event.session.ManagedEntityEvent

getEntityClass, getEntityIdentifier, getEntityName

Methods inherited from class io.hypersistence.optimizer.core.event.AbstractEvent

getInfoUrl

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OptimisticLockModeEvent

public OptimisticLockModeEvent(Class entityClass,
                               Object entityIdentifier)

Method Detail

getPriority

public Event.Priority getPriority()

Get the Event.Priority of this Event

Returns:

the Event.Priority of this Event

getDescription

public String getDescription()

Get the String description of this Event

Returns:

the String description of this Event