add detector changed hooks

Author: baltzell

reconstruction/mu/src/main/java/org/jlab/rec/mucal/MUCALEngine.java

@@ -49,8 +49,11 @@ public boolean init() {
                 return true;
 	}
 
+    @Override
+    public void detectorChanged(int run) {}
+
 	@Override
-	public boolean processDataEvent(DataEvent event) {
+	public boolean processDataEventUser(DataEvent event) {
             List<MUCALHit>     allHits           = new ArrayList();
             List<MUCALHit>     selectedHits      = new ArrayList();
             List<MUCALCluster> clusters          = new ArrayList();

reconstruction/mu/src/main/java/org/jlab/rec/muhd/MUHDEngine.java

@@ -44,8 +44,11 @@ public boolean init() {
                 return true;
 	}
 
+    @Override
+    public void detectorChanged(int run) {}
+
 	@Override
-	public boolean processDataEvent(DataEvent event) {
+	public boolean processDataEventUser(DataEvent event) {
 
             // update calibration constants based on run number if changed
             int run = setRunConditionsParameters(event);

reconstruction/mu/src/main/java/org/jlab/rec/muvt/MUVTEngine.java

@@ -55,7 +55,10 @@ public boolean init() {
     }
 
     @Override
-    public boolean processDataEvent(DataEvent event) {
+    public void detectorChanged(int run) {}
+
+    @Override
+    public boolean processDataEventUser(DataEvent event) {
         // Initial setup.
         if(debug) System.out.println("\nNew event");
 
@@ -279,4 +282,4 @@ private void writeHipoBanks(DataEvent de,
         de.appendBanks(bankS,bankC,bankX,bankT);
 
     }
-}
+}