Class AbstractApplicationEventMulticaster

java.lang.Object
org.springframework.context.event.AbstractApplicationEventMulticaster
All Implemented Interfaces:
Aware, BeanClassLoaderAware, BeanFactoryAware, ApplicationEventMulticaster
Direct Known Subclasses:
SimpleApplicationEventMulticaster

public abstract class AbstractApplicationEventMulticaster extends Object implements ApplicationEventMulticaster, BeanClassLoaderAware, BeanFactoryAware
Abstract implementation of the ApplicationEventMulticaster interface, providing the basic listener registration facility.

Doesn't permit multiple instances of the same listener by default, as it keeps listeners in a linked Set. The collection class used to hold ApplicationListener objects can be overridden through the "collectionClass" bean property.

Implementing ApplicationEventMulticaster's actual ApplicationEventMulticaster.multicastEvent(org.springframework.context.ApplicationEvent) method is left to subclasses. SimpleApplicationEventMulticaster simply multicasts all events to all registered listeners, invoking them in the calling thread. Alternative implementations could be more sophisticated in those respects.

Since:
1.2.3
Author:
Juergen Hoeller, Stephane Nicoll
See Also: