EventBus.Default.Trigger(...); //触发事件
public class TaskAppService : ApplicaService {
public IEventBus EventBus { get; set; }
public TaskAppService() {
EventBus = NullEventBus.Instance;
}
}
public class TaskCompletedEventData : EventData {
public int TaskId { get; set; }
}
public class TaskAppService : ApplicationService {
public IEventBus EventBus { get; set; }
public TaskAppService() {
EventBus = NullEventBus.Instance;
}
public void CompleteTask(CompleteTaskInput input) {
//TODO: 已完成数据库上的任务
EventBus.Trigger(new TaskCompletedEventData { TaskId = 42 } );
}
}
EventBus.Trigger<TaskcompletedEventData>(new TaskCompletedEventData { TaskId = 42});
EventBus.Trigger(this, new TaskCompletedEventData { TaskId = 42 });
EventBus.Trigger(typeof(TaskCompletedEventData), this, new TaskCompletedEventData { TaskId = 42});
public class ActivityWriter : IEventHandler<TaskCompletedEventData>, ITransientDependency {
public void HandleEvent(TaskCompletedEventData eventData) {
WriteActivity("A task is completed by id = " + eventData.TaskId);
}
}
public class TaskEventData : EventData {
public Task Task { get; set; }
}
public class TaskCreatedEventData : TaskEventData {
public User CreatorUser { get; set; }
}
public class TaskCompletedEventData : TaskEventData {
public User CompletorUser { get; set; }
}
public class ActivityWriter : IEventHandler<TaskEventData>, ITransientDependency {
public void HandleEvent(TaskEventData eventData) {
if(eventData is TaskCreatedEventData) {
...
}else{
...
}
}
}
public class ActivityWriter :
IEventHandler<TaskCompletedEventData>,
IEventHandler<TaskCreatedEventData>,
ITransientDependency
{
public void HandleEvent(TaskCompletedEventData eventData) {
//TODO: 处理事件
}
public void HandleEvent(TaskCreatedEventData eventData) {
//TODO: 处理事件
}
}
EventBus.Register<TaskCompletedEventData>(eventData =>
{
WriteActivity("A task is completed by id = " + eventData.TaskId);
});
Eventbus.Register<TaskCompletedEventData>(new ActivityWriter());
public class ActivityWriterFactory : IEventHandlerFactory {
public IEventHandler GetHandler() {
return new ActivityWriter();
}
public void ReleaseHandler(IEventHandler handler) {
//TODO: 释放ActivityWriter实体(处理器)
}
}
//注册一个事件
Var registration = EventBus.Register<TaskCompletedEventData>(eventData => WriteActivity("A task is completed by id = " + eventData.TaskId));
//取消注册一个事件
registration.Dispose();
//创建一个处理器 var handler = new ActivityWriter(); //注册一个事件 EventBus.Register<TaskCompletedEventData>(handler); //取消这个事件的注册 EventBus.Unregister<TaskCompletedEventData>(handler);
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