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--- e4_event_broker [2014/04/21 12:06]
+++ e4_event_broker [2021/04/05 11:23] (current)
@@ Line 1: / Line 1: @@
+====== e4 EventBroker ======
+The e4 EventBroker is a service bus component which is not an OSGi component but an Eclipse e4 component which can be injected via ''@Inject''.
+<sxh java>
+Map<String, Object> map = new HashMap<String, Object>();
+map.put(IEventBroker.DATA, element);
+eventBroker.post(topic, map);
+</sxh>
+Additional data can be passed to the event receiver by adding them to the map.
+<sxh java>
+Map<String, Object> map = new HashMap<String, Object>();
+map.put(IEventBroker.DATA, element);
+map.put(another_property, property);
+eventBroker.post(topic, map);
+</sxh>
+It can also be much simple: Just pass object to the event broker. The event broker will wrap it into a map and return that to the receiver, key ''IEventBroker.DATA''.
+<sxh java>
+eventBroker.post(topic, data);
+</sxh>
+{{tag>e4 java}}