public interface EventManager
| Modifier and Type | Method and Description | 
|---|---|
| void | addListener(Object listener,
           String methodName,
           Class<?> eventParameterClass,
           EventSubject subject)Register an  EventListenerfor events sent by any sender. | 
| void | addListener(Object listener,
           String methodName,
           Class<?> eventParameterClass,
           EventSubject subject,
           Object sender)Register an  EventListenerfor events sent by a specific sender. | 
| void | addNonBlockingListener(Object listener,
                      String methodName,
                      Class<?> eventParameterClass,
                      EventSubject subject) | 
| void | addNonBlockingListener(Object listener,
                      String methodName,
                      Class<?> eventParameterClass,
                      EventSubject subject,
                      Object sender) | 
| boolean | isSingleThreaded()Returns true if this EventManager is single-threaded. | 
| void | postEvent(EventObject event,
         EventSubject subject)Sends an event to all registered objects about a particular subject. | 
| void | postNonBlockingEvent(EventObject event,
                    EventSubject subject)Sends an event to all registered objects about a particular subject. | 
| boolean | removeAllListeners(EventSubject subject)Removes all listeners for a given subject. | 
| boolean | removeListener(Object listener)Unregister the specified listener from all event subjects handled by this manager
 instance. | 
| boolean | removeListener(Object listener,
              EventSubject subject)Unregister the specified listener for the events about the given subject. | 
| boolean | removeListener(Object listener,
              EventSubject subject,
              Object sender)Unregister the specified listener for the events about the given subject and the
 given sender. | 
boolean isSingleThreaded()
void addListener(Object listener, String methodName, Class<?> eventParameterClass, EventSubject subject)
EventListener for events sent by any sender.RuntimeException - if methodName is not found.void addNonBlockingListener(Object listener, String methodName, Class<?> eventParameterClass, EventSubject subject)
void addListener(Object listener, String methodName, Class<?> eventParameterClass, EventSubject subject, Object sender)
EventListener for events sent by a specific sender.listener - the object to be notified about eventsmethodName - the name of the listener method to be invokedeventParameterClass - the class of the single event argument passed to
            methodNamesubject - the event subject that the listener is interested insender - the object whose events the listener is interested in;
            null means 'any sender'.RuntimeException - if methodName is not foundvoid addNonBlockingListener(Object listener, String methodName, Class<?> eventParameterClass, EventSubject subject, Object sender)
boolean removeListener(Object listener)
listener - the object to be unregisteredtrue if listener could be removed for any
         existing subjects, else returns false.boolean removeAllListeners(EventSubject subject)
boolean removeListener(Object listener, EventSubject subject)
listener - the object to be unregisteredsubject - the subject from which the listener is to be unregisteredtrue if listener could be removed for the given
         subject, else returns false.boolean removeListener(Object listener, EventSubject subject, Object sender)
listener - the object to be unregisteredsubject - the subject from which the listener is to be unregisteredsender - the object whose events the listener was interested in;
            null means 'any sender'.true if listener could be removed for the given
         subject, else returns false.void postEvent(EventObject event, EventSubject subject)
event - the event to be posted to the observerssubject - the subject about which observers will be notifiedIllegalArgumentException - if event or subject are nullvoid postNonBlockingEvent(EventObject event, EventSubject subject)
event - the event to be posted to the observerssubject - the subject about which observers will be notifiedIllegalArgumentException - if event or subject are nullCopyright © 2001–2023 Apache Cayenne. All rights reserved.