--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/collision/LoadMultipleYearSelectState.java	Thu May 17 13:06:12 2018 +0200
@@ -0,0 +1,49 @@
+/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
+ * Software engineering by Intevation GmbH
+ *
+ * This file is Free Software under the GNU AGPL (>=v3)
+ * and comes with ABSOLUTELY NO WARRANTY! Check out the
+ * documentation coming with Dive4Elements River for details.
+ */
+
+package org.dive4elements.river.artifacts.sinfo.collision;
+
+import org.apache.log4j.Logger;
+import org.dive4elements.artifacts.Artifact;
+import org.dive4elements.river.artifacts.sinfo.SINFOArtifact;
+import org.dive4elements.river.artifacts.states.DefaultState;
+
+/** State in which to fetch years for sedminent load calculation. */
+public class LoadMultipleYearSelectState extends DefaultState {
+    private static final long serialVersionUID = 1L;
+    /** The log used in this class. */
+    private static Logger log = Logger.getLogger(LoadMultipleYearSelectState.class);
+
+    /**
+     * The default constructor that initializes an empty State object.
+     */
+    public LoadMultipleYearSelectState() {
+    }
+
+    /** Year Select Widget. */
+    @Override
+    protected String getUIProvider() {
+        return "minfo.sedimentload_year_select"; // TODO: eigenes Panel oder allgemeineren Code
+    }
+
+    @Override
+    public boolean validate(final Artifact artifact) throws IllegalArgumentException {
+        // TODO: check verstehen
+
+        final CollisionAccess access = new CollisionAccess((SINFOArtifact) artifact);
+
+        // Second year should be later than first.
+
+        if (access.getYears() == null || access.getYears().length == 0)
+            return true;
+        // throw new IllegalArgumentException("error_years_wrong");
+
+        return true;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :