Fixed compilation issues

hal-core/src/se/hal/struct/devicedata/CostSensorData.java

@@ -0,0 +1,36 @@
+package se.hal.struct.devicedata;
+
+import se.hal.intf.HalSensorData;
+
+
+public class CostSensorData extends HalSensorData {
+
+    private double cost;
+
+
+    public CostSensorData(){}
+    public CostSensorData(double cost, long timestamp){
+        this.cost = cost;
+        super.setTimestamp(timestamp);
+    }
+
+
+    @Override
+    public String toString(){
+        return cost + "";
+    }
+
+    // ----------------------------------------
+    // Storage methods
+    // ----------------------------------------
+
+    @Override
+    public double getData() {
+        return cost;
+    }
+
+    @Override
+    public void setData(double cost) {
+        this.cost = cost;
+    }
+}

hal-core/src/se/hal/struct/devicedata/PriceSensorData.java

@@ -0,0 +1,36 @@
+package se.hal.struct.devicedata;
+
+import se.hal.intf.HalSensorData;
+
+
+public class PriceSensorData extends HalSensorData {
+
+    private double price;
+
+
+    public PriceSensorData(){}
+    public PriceSensorData(double price, long timestamp){
+        this.price = price;
+        super.setTimestamp(timestamp);
+    }
+
+
+    @Override
+    public String toString(){
+        return price + "";
+    }
+
+    // ----------------------------------------
+    // Storage methods
+    // ----------------------------------------
+
+    @Override
+    public double getData() {
+        return price;
+    }
+
+    @Override
+    public void setData(double price) {
+        this.price = price;
+    }
+}