1·An emitter created from this emitter factory profile will send events synchronously through an EJB call, provided that this setting is not overridden on the emitter API.
如果没有使用发射器API覆盖该设置,那么用该发射器工厂概要创建的发射器将通过ejb调用来同步地发送事件。
2·Event Access interface allows the event consumers to query the historical events synchronously.
Event Access接口允许事件消费者同步地查询历史事件。