--- a/flys-artifacts/src/main/java/de/intevation/flys/artifacts/MainValuesArtifact.java	Sat Oct 13 20:08:13 2012 +0200
+++ b/flys-artifacts/src/main/java/de/intevation/flys/artifacts/MainValuesArtifact.java	Sat Oct 13 21:29:45 2012 +0200
@@ -36,7 +36,7 @@
 
 
 /**
- * Artifact to access names of Points Of Interest along a segment of a river.
+ * Artifact to access main and extreme values of a river.
  * This artifact neglects (Static)FLYSArtifacts capabilities of interaction
  * with the StateEngine by overriding the getState*-methods.
  */
@@ -96,27 +96,41 @@
         logger.debug("MainValuesArtifact.setup");
         state = new StaticState(STATIC_STATE_NAME);
 
-        Facet qfacet0 = new MainValuesQFacet(
-            DURATION_MAINVALUES_Q,
-            Resources.getMsg(
-                callMeta,
-                "facet.discharge_curves.mainvalues.q",
-                "facet.discharge_curves.mainvalues.q"),
-            false);
-        Facet qfacet1 = new MainValuesQFacet(
-            COMPUTED_DISCHARGE_MAINVALUES_Q,
-            Resources.getMsg(
-                callMeta,
-                "facet.discharge_curves.mainvalues.q",
-                "facet.discharge_curves.mainvalues.q"),
-            false);
-        Facet qfacet2 = new MainValuesQFacet(
-            MAINVALUES_Q,
-            Resources.getMsg(
-                callMeta,
-                "facet.discharge_curves.mainvalues.q",
-                "facet.discharge_curves.mainvalues.q"),
-            true);
+        List<Facet> fs = new ArrayList<Facet>();
+        facets.put(state.getID(), fs);
+        spawnState();
+        super.setup(identifier, factory, context, callMeta, data);
+        String restriction = getDatacageIDValue(data);
+        logger.debug("mainvalue restriction " + restriction);
+        boolean restricted = restriction.endsWith("q") || restriction.endsWith("w");
+        if (!restricted || restriction.endsWith("q")) {
+            Facet qfacet0 = new MainValuesQFacet(
+                DURATION_MAINVALUES_Q,
+                Resources.getMsg(
+                    callMeta,
+                    "facet.discharge_curves.mainvalues.q",
+                    "facet.discharge_curves.mainvalues.q"),
+                false);
+            Facet qfacet1 = new MainValuesQFacet(
+                COMPUTED_DISCHARGE_MAINVALUES_Q,
+                Resources.getMsg(
+                    callMeta,
+                    "facet.discharge_curves.mainvalues.q",
+                    "facet.discharge_curves.mainvalues.q"),
+                false);
+            Facet qfacet2 = new MainValuesQFacet(
+                MAINVALUES_Q,
+                Resources.getMsg(
+                    callMeta,
+                    "facet.discharge_curves.mainvalues.q",
+                    "facet.discharge_curves.mainvalues.q"),
+                true);
+            
+            fs.add(qfacet0);
+            fs.add(qfacet1);
+            fs.add(qfacet2);
+        }
+        if (!restricted || restriction.endsWith("w")) {
         Facet wfacet1 = new MainValuesWFacet(
             COMPUTED_DISCHARGE_MAINVALUES_W,
             Resources.getMsg(
@@ -131,17 +145,9 @@
                 "facet.discharge_curves.mainvalues.w",
                 "facet.discharge_curves.mainvalues.w"),
             true);
-
-        List<Facet> fs = new ArrayList<Facet>();
-        fs.add(qfacet0);
-        fs.add(qfacet1);
-        fs.add(qfacet2);
-        fs.add(wfacet1);
-        fs.add(wfacet2);
-
-        facets.put(state.getID(), fs);
-        spawnState();
-        super.setup(identifier, factory, context, callMeta, data);
+            fs.add(wfacet1);
+            fs.add(wfacet2);
+        }
     }