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AbstractApplicationEventMulticaster filters listeners against their type first, avoiding eager retrieval of listener instances for non-matching events

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Issue: SPR-11501
This commit is contained in:
Juergen Hoeller
2014-03-04 13:31:40 +01:00
parent fa44224430
commit cb41f42791
3 changed files with 47 additions and 15 deletions
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10
spring-context/src/test/java/org/springframework/context/event/ApplicationContextEventTests.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2013 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -110,14 +110,18 @@ public class ApplicationContextEventTests {
context.registerBeanDefinition("listener1", new RootBeanDefinition(MyOrderedListener1.class));
RootBeanDefinition listener2 = new RootBeanDefinition(MyOrderedListener2.class);
listener2.getConstructorArgumentValues().addGenericArgumentValue(new RuntimeBeanReference("listener1"));
listener2.setLazyInit(true);
context.registerBeanDefinition("listener2", listener2);
context.refresh();
assertFalse(context.getDefaultListableBeanFactory().containsSingleton("listener2"));
MyOrderedListener1 listener1 = context.getBean("listener1", MyOrderedListener1.class);
MyEvent event1 = new MyEvent(context);
MyOtherEvent event1 = new MyOtherEvent(context);
context.publishEvent(event1);
MyOtherEvent event2 = new MyOtherEvent(context);
assertFalse(context.getDefaultListableBeanFactory().containsSingleton("listener2"));
MyEvent event2 = new MyEvent(context);
context.publishEvent(event2);
assertTrue(context.getDefaultListableBeanFactory().containsSingleton("listener2"));
MyEvent event3 = new MyEvent(context);
context.publishEvent(event3);
MyOtherEvent event4 = new MyOtherEvent(context);