Implemented a workflow to enrich the result with additional data

This was problematic, because a processor can have multiple result
receivers and every result receiver could add additional data. So I
implemented an additional result data builder, that handles the conflicts,
when a member of the additional data is set multiple times.
There's a remaining problem with the StringMessagesForTests, because it
isn't as rich as the string messages used in the productive environment.
When this is resolved, the query tests should be successful.

java/com.sap.sse.datamining.shared/src/com/sap/sse/datamining/shared/AdditionalResultData.java

@@ -0,0 +1,17 @@
+package com.sap.sse.datamining.shared;
+
+public interface AdditionalResultData {
+
+    public int getRetrievedDataAmount();
+
+    public int getFilteredDataAmount();
+
+    public double getCalculationTimeInSeconds();
+
+    public String getResultSignifier();
+
+    public Unit getUnit();
+
+    public int getValueDecimals();
+
+}

java/com.sap.sse.datamining.shared/src/com/sap/sse/datamining/shared/QueryResult.java

@@ -4,7 +4,7 @@ import java.io.Serializable;
 import java.util.Map;
 
 public interface QueryResult<AggregatedType> extends Serializable {
-
+    
     int getRetrievedDataAmount();
     public int getFilteredDataAmount();
     public double getCalculationTimeInSeconds();

java/com.sap.sse.datamining.shared/src/com/sap/sse/datamining/shared/impl/AdditionalResultDataImpl.java

@@ -0,0 +1,55 @@
+package com.sap.sse.datamining.shared.impl;
+
+import com.sap.sse.datamining.shared.AdditionalResultData;
+import com.sap.sse.datamining.shared.Unit;
+
+public class AdditionalResultDataImpl implements AdditionalResultData {
+
+    private final int retrievedDataAmount;
+    private int filteredDataAmount;
+    private String resultSignifier;
+    private Unit unit;
+    private int valueDecimals;
+    private long calculationTimeInNanos;
+
+    public AdditionalResultDataImpl(int retrievedDataAmount, int filteredDataAmount, String resultSignifier, Unit unit, int valueDecimals,
+            long calculationTimeInNanos) {
+                this.retrievedDataAmount = retrievedDataAmount;
+                this.filteredDataAmount = filteredDataAmount;
+                this.resultSignifier = resultSignifier;
+                this.unit = unit;
+                this.valueDecimals = valueDecimals;
+                this.calculationTimeInNanos = calculationTimeInNanos;
+    }
+
+    @Override
+    public int getRetrievedDataAmount() {
+        return retrievedDataAmount;
+    }
+
+    @Override
+    public int getFilteredDataAmount() {
+        return filteredDataAmount;
+    }
+
+    @Override
+    public double getCalculationTimeInSeconds() {
+        return calculationTimeInNanos;
+    }
+
+    @Override
+    public String getResultSignifier() {
+        return resultSignifier;
+    }
+
+    @Override
+    public Unit getUnit() {
+        return unit;
+    }
+
+    @Override
+    public int getValueDecimals() {
+        return valueDecimals;
+    }
+
+}

java/com.sap.sse.datamining.shared/src/com/sap/sse/datamining/shared/impl/QueryResultImpl.java

@@ -3,6 +3,7 @@ package com.sap.sse.datamining.shared.impl;
 import java.util.HashMap;
 import java.util.Map;
 
+import com.sap.sse.datamining.shared.AdditionalResultData;
 import com.sap.sse.datamining.shared.GroupKey;
 import com.sap.sse.datamining.shared.QueryResult;
 import com.sap.sse.datamining.shared.Unit;
@@ -10,15 +11,8 @@ import com.sap.sse.datamining.shared.Unit;
 public class QueryResultImpl<AggregatedType> implements QueryResult<AggregatedType> {
     private static final long serialVersionUID = -8347731622150585715L;
     
-    private int retrievedDataAmount;
-    private int filteredDataAmount;
-    private long calculationTimeInNanos;
-
-    private String resultSignifier;
-    private Unit unit;
-    private int valueDecimals;
-	
     private Map<GroupKey, AggregatedType> results;
+    private AdditionalResultData additionalData;
     
     /**
      * Constructor for the GWT-Serialization. Don't use this!
@@ -26,32 +20,24 @@ public class QueryResultImpl<AggregatedType> implements QueryResult<AggregatedTy
     @Deprecated
     QueryResultImpl() { }
     
-    public QueryResultImpl(int retrievedDataAmount, int filteredDataAmount, String resultSiginifier, Unit unit, int valueDecimals) {
-        this.retrievedDataAmount = retrievedDataAmount;
-        this.filteredDataAmount = filteredDataAmount;
-        results = new HashMap<GroupKey, AggregatedType>();
-        this.resultSignifier = resultSiginifier;
-        this.unit = unit;
-        this.valueDecimals = valueDecimals;
+    public QueryResultImpl(Map<GroupKey, AggregatedType> results, AdditionalResultData additionalData) {
+        this.results = new HashMap<GroupKey, AggregatedType>(results);
+        this.additionalData = additionalData;
     }
 
     @Override
     public int getRetrievedDataAmount() {
-        return retrievedDataAmount;
+        return additionalData.getRetrievedDataAmount();
     }
 
     @Override
     public int getFilteredDataAmount() {
-        return filteredDataAmount;
+        return additionalData.getFilteredDataAmount();
     }
 
     @Override
     public double getCalculationTimeInSeconds() {
-        return calculationTimeInNanos / 1000000000.0;
-    }
-    
-    public void setCalculationTimeInNanos(long calculationTimeInNanos) {
-        this.calculationTimeInNanos = calculationTimeInNanos;
+        return additionalData.getCalculationTimeInSeconds();
     }
 
     @Override
@@ -61,17 +47,17 @@ public class QueryResultImpl<AggregatedType> implements QueryResult<AggregatedTy
 
     @Override
     public String getResultSignifier() {
-        return resultSignifier;
+        return additionalData.getResultSignifier();
     }
     
     @Override
     public Unit getUnit() {
-    	return unit;
+    	return additionalData.getUnit();
     }
 
     @Override
     public int getValueDecimals() {
-        return valueDecimals;
+        return additionalData.getValueDecimals();
     }
 
     @Override