org.springframework.context.event

Class DefaultEventListenerFactory

java.lang.Object

org.springframework.context.event.DefaultEventListenerFactory

All Implemented Interfaces:

EventListenerFactory, Ordered

public class DefaultEventListenerFactory
extends java.lang.Object
implements EventListenerFactory, Ordered

Default EventListenerFactory implementation that supports the regular EventListener annotation.

Used as "catch-all" implementation by default.

Since:

4.2

Author:

Stephane Nicoll

Field Summary

Fields

Modifier and Type	Field and Description
private int	order

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor and Description
DefaultEventListenerFactory()

Method Summary

Modifier and Type	Method and Description
ApplicationListener<?>	createApplicationListener(java.lang.String beanName, java.lang.Class<?> type, java.lang.reflect.Method method) Create an ApplicationListener for the specified method.
int	getOrder() Return the order value of this object, with a higher value meaning greater in terms of sorting.
void	setOrder(int order)
boolean	supportsMethod(java.lang.reflect.Method method) Specify if this factory supports the specified Method.

Methods inherited from class java.lang.Object

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

Field Detail

order

private int order

Constructor Detail

DefaultEventListenerFactory

public DefaultEventListenerFactory()

Method Detail

getOrder

public int getOrder()

Description copied from interface: Ordered

Return the order value of this object, with a higher value meaning greater in terms of sorting.

Normally starting with 0, with Integer.MAX_VALUE indicating the greatest value. Same order values will result in arbitrary positions for the affected objects.

Higher values can be interpreted as lower priority. As a consequence, the object with the lowest value has highest priority (somewhat analogous to Servlet "load-on-startup" values).

Specified by:

getOrder in interface Ordered

Returns:

the order value

setOrder

public void setOrder(int order)

supportsMethod

public boolean supportsMethod(java.lang.reflect.Method method)

Description copied from interface: EventListenerFactory

Specify if this factory supports the specified Method.

Specified by:

supportsMethod in interface EventListenerFactory

Parameters:

method - an EventListener annotated method

Returns:

true if this factory supports the specified method

createApplicationListener

public ApplicationListener<?> createApplicationListener(java.lang.String beanName,
                                                        java.lang.Class<?> type,
                                                        java.lang.reflect.Method method)

Description copied from interface: EventListenerFactory

Create an ApplicationListener for the specified method.

Specified by:

createApplicationListener in interface EventListenerFactory

Parameters:

beanName - the name of the bean

type - the target type of the instance

method - the EventListener annotated method

Returns:

an application listener, suitable to invoke the specified method