bugfix: call addConsumer by addConsumers instead of adding all to list

Author: Daniel Türk

api/src/main/java/net/wbz/selectrix4java/api/bus/BusDataDispatcher.java

@@ -69,7 +69,9 @@ public void registerConsumer(BusDataConsumer consumer) {
     }
 
     public void registerConsumers(List<BusDataConsumer> consumers) {
-        this.consumers.addAll(consumers);
+        for (BusDataConsumer consumer : consumers) {
+            registerConsumer(consumer);
+        }
     }
 
     public void unregisterConsumer(BusDataConsumer consumer) {
@@ -80,6 +82,14 @@ public void unregisterConsumers(List<BusDataConsumer> consumers) {
         this.consumers.removeAll(consumers);
     }
 
+    /**
+     * Perform an update by calling all registered consumers with the current data of the bus addresses.
+     * Each consumer will be called for an value change.
+     */
+    public void requestConsumersDataUpdate() {
+
+    }
+
     @Override
     public void received(int busNr, byte[] data) {
         boolean firstTimeDataReceived = !busData.containsKey(busNr);