io.hypersistence.optimizer.hibernate.event.mapping.equality

Class EqualsHashCodeEvent

java.lang.Object

io.hypersistence.optimizer.core.event.AbstractEvent

io.hypersistence.optimizer.hibernate.event.mapping.EntityMappingEvent

io.hypersistence.optimizer.hibernate.event.mapping.equality.EqualsHashCodeEvent

All Implemented Interfaces:

Event, Serializable

public class EqualsHashCodeEvent
extends EntityMappingEvent

The EqualsHashCodeEvent indicates that an entity does not define proper Object.equals(Object) and Object.hashCode() methods that provide the equivalence relation properties:

• Reflexivity
• Symmetry
• Transitivity
• Consistency

While the first three are quite easy to address, Consistency is trickier because, in the context of JPA, you need to make sure that multiple invocations of equals and hashCode yield the same result no matter the JPA entity state change (New, Managed, Detached, Removed).

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
EqualsHashCodeEvent(Class entityClass, String entityStateTransitionMethodName) Instantiate the event using the provided parameters.

Method Summary

Modifier and Type	Method and Description
String	getDescription() Get the String description of this Event
String	getEntityStateTransitionMethodName() The entity state transition method name that was called when the entity was found to be already managed.
Event.Priority	getPriority() Get the Event.Priority of this Event

Methods inherited from class io.hypersistence.optimizer.hibernate.event.mapping.EntityMappingEvent

getEntityClass, 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

EqualsHashCodeEvent

public EqualsHashCodeEvent(Class entityClass,
                           String entityStateTransitionMethodName)

Instantiate the event using the provided parameters.

Parameters:

entityClass - entity class

entityStateTransitionMethodName - the entity state transition method name

Method Detail

getEntityStateTransitionMethodName

public String getEntityStateTransitionMethodName()

The entity state transition method name that was called when the entity was found to be already managed.

Returns:

entity state transition method name that was called

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