如何<TestEvent在Spring中获得实现特定通用接口(例如Filter >)的所有bean的引用？
这是我想用最少的行数实现的:
public interface Filter<T extends Event> {
boolean approve(T event);
}
public class TestEventFilter implements Filter<TestEvent> {
public boolean approve(TestEvent event){
return false;
}
}
public class EventHandler{
private ApplicationContext context;
public void Eventhandler(DomainEvent event) {
// I want to do something like following, but this is not valid code
Map<String, Filter> filters = context.getBeansOfType(Filter<event.getClass()>.class);
for(Filter filter: filters.values()){
if (!filter.approve(event)) {
return; // abort if a filter does not approve the event
}
}
//...
} …