add missing overrides

Author: baltzell

reconstruction/bg/src/main/java/org/jlab/service/bg/BackgroundEngine.java

@@ -41,6 +41,9 @@ public boolean init() {
         return true;
     }
 
+    @Override
+    public void detectorChanged(int run){}
+
     public boolean init(String... filenames) {
         bgfilenames.clear();
         String detectors = getEngineConfigString(CONF_DETECTORS,"DC,FTOF");
@@ -80,7 +83,7 @@ synchronized public DataEvent getBackgroundEvent() {
     }
 
     @Override
-    public boolean processDataEvent(DataEvent event) {
+    public boolean processDataEventUser(DataEvent event) {
         if (!bgfilenames.isEmpty()) {
             DataEvent a = getBackgroundEvent();
             DataEvent b = getBackgroundEvent();

reconstruction/postproc/src/main/java/org/jlab/service/postproc/PostprocEngine.java

@@ -47,7 +47,10 @@ else if (getEngineConfigString(CONF_PRELOAD_DIR) != null) {
     }
 
     @Override
-    public boolean processDataEvent(DataEvent event) {
+    public void detectorChanged(int run) {}
+
+    @Override
+    public boolean processDataEventUser(DataEvent event) {
         processor.processEvent(event);
         return true;
     }