Package io.micronaut.data.runtime.event.listeners

Class AutoTimestampEntityEventListener

java.lang.Object

io.micronaut.data.runtime.event.listeners.AutoPopulatedEntityEventListener

io.micronaut.data.runtime.event.listeners.AutoTimestampEntityEventListener

All Implemented Interfaces:

io.micronaut.core.order.Ordered, EntityEventListener<Object>, PropertyAutoPopulator<DateUpdated>, EventListener

@Singleton
public class AutoTimestampEntityEventListener
extends AutoPopulatedEntityEventListener
implements PropertyAutoPopulator<DateUpdated>

An event listener that handles DateCreated and DateUpdated.

Since:

2.3.0

Author:

graemerocher

Field Summary

Fields inherited from interface io.micronaut.data.event.EntityEventListener

NOOP

Fields inherited from interface io.micronaut.core.order.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor	Description
AutoTimestampEntityEventListener(DateTimeProvider<?> dateTimeProvider, DataConversionService conversionService)	Default constructor.

Method Summary

Modifier and Type	Method	Description
protected @NonNull List<Class<? extends Annotation>>	getEventTypes()
protected @NonNull Predicate<RuntimePersistentProperty<Object>>	getPropertyPredicate()
@NonNull Object	populate(RuntimePersistentProperty<?> property, @Nullable Object previousValue)	Auto-populating the property.
boolean	prePersist(@NonNull EntityEventContext<Object> context)	A pre-persist hook.
boolean	preUpdate(@NonNull EntityEventContext<Object> context)	A pre-update hook.

Methods inherited from class io.micronaut.data.runtime.event.listeners.AutoPopulatedEntityEventListener

getApplicableProperties, supports

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.micronaut.data.event.EntityEventListener

postLoad, postPersist, postRemove, postUpdate, preQuery, preRemove

Methods inherited from interface io.micronaut.core.order.Ordered

getOrder

Constructor Details

AutoTimestampEntityEventListener

public AutoTimestampEntityEventListener(DateTimeProvider<?> dateTimeProvider,
 DataConversionService conversionService)

Default constructor.

Parameters:

dateTimeProvider - The date time provider

conversionService - The conversion service

Method Details

getEventTypes

@NonNull
protected @NonNull List<Class<? extends Annotation>> getEventTypes()

Specified by:

getEventTypes in class AutoPopulatedEntityEventListener

Returns:

The event type

getPropertyPredicate

@NonNull
protected @NonNull Predicate<RuntimePersistentProperty<Object>> getPropertyPredicate()

Specified by:

getPropertyPredicate in class AutoPopulatedEntityEventListener

Returns:

A predicate to apply for the given property.

prePersist

public boolean prePersist(@NonNull
 @NonNull EntityEventContext<Object> context)

Description copied from interface: EntityEventListener

A pre-persist hook. Implementors can return false to evict the operation.

Specified by:

prePersist in interface EntityEventListener<Object>

Parameters:

context - The context object

Returns:

A boolean value indicating whether to proceed with the operation.

preUpdate

public boolean preUpdate(@NonNull
 @NonNull EntityEventContext<Object> context)

Description copied from interface: EntityEventListener

A pre-update hook. Implementors can return false to evict the operation.

Specified by:

preUpdate in interface EntityEventListener<Object>

Parameters:

context - The context object

Returns:

A boolean value indicating whether to proceed with the operation.

populate

@NonNull
public @NonNull Object populate(RuntimePersistentProperty<?> property,
 @Nullable
 @Nullable Object previousValue)

Description copied from interface: PropertyAutoPopulator

Auto-populating the property.

Specified by:

populate in interface PropertyAutoPopulator<DateUpdated>

Parameters:

property - the property to auto-populate

previousValue - the previous value, if any

Returns:

new value