Package org.springframework.context

Class ApplicationEvent

java.lang.Object

java.util.EventObject

org.springframework.context.ApplicationEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AbstractSubProtocolEvent, ApplicationContextEvent, BrokerAvailabilityEvent, PayloadApplicationEvent, RequestHandledEvent, TestContextEvent

public abstract class ApplicationEvent
extends EventObject

Class to be extended by all application events. Abstract as it doesn't make sense for generic events to be published directly.

Author:

Rod Johnson, Juergen Hoeller

See Also:

• ApplicationListener
• EventListener
• Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
ApplicationEvent(Object source)	Create a new ApplicationEvent with its timestamp set to System.currentTimeMillis().
ApplicationEvent(Object source, Clock clock)	Create a new ApplicationEvent with its timestamp set to the value returned by Clock.millis() in the provided Clock.

Method Summary

Modifier and Type	Method	Description
final long	getTimestamp()	Return the time in milliseconds when the event occurred.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Constructor Details

ApplicationEvent

public ApplicationEvent(Object source)

Create a new ApplicationEvent with its timestamp set to System.currentTimeMillis().

Parameters:

source - the object on which the event initially occurred or with which the event is associated (never null)

See Also:

• ApplicationEvent(Object, Clock)

ApplicationEvent

public ApplicationEvent(Object source,
 Clock clock)

Create a new ApplicationEvent with its timestamp set to the value returned by Clock.millis() in the provided Clock.

This constructor is typically used in testing scenarios.

Parameters:

source - the object on which the event initially occurred or with which the event is associated (never null)

clock - a clock which will provide the timestamp

Since:

5.3.8

See Also:

• ApplicationEvent(Object)

Method Details

getTimestamp

public final long getTimestamp()

Return the time in milliseconds when the event occurred.

See Also:

• ApplicationEvent(Object)
• ApplicationEvent(Object, Clock)