--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/backend/src/main/java/org/dive4elements/river/importer/ImportSedimentYieldValue.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,58 @@
+package org.dive4elements.river.importer;
+
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.Query;
+
+import org.dive4elements.river.model.SedimentYield;
+import org.dive4elements.river.model.SedimentYieldValue;
+
+
+public class ImportSedimentYieldValue {
+
+    private Double station;
+    private Double value;
+
+    private SedimentYieldValue peer;
+
+
+    public ImportSedimentYieldValue(Double station, Double value) {
+        this.station = station;
+        this.value   = value;
+    }
+
+
+    public void storeDependencies(SedimentYield sedimentYield) {
+        getPeer(sedimentYield);
+    }
+
+
+    public SedimentYieldValue getPeer(SedimentYield sedimentYield) {
+        if (peer == null) {
+            Session session = ImporterSession.getInstance().getDatabaseSession();
+            Query query = session.createQuery(
+                "from SedimentYieldValue where " +
+                "   sedimentYield=:sedimentYield and " +
+                "   station=:station and " +
+                "   value=:value"
+            );
+
+            query.setParameter("sedimentYield", sedimentYield);
+            query.setParameter("station", station);
+            query.setParameter("value", value);
+
+            List<SedimentYieldValue> values = query.list();
+            if (values.isEmpty()) {
+                peer = new SedimentYieldValue(sedimentYield, station, value);
+                session.save(peer);
+            }
+            else {
+                peer = values.get(0);
+            }
+        }
+
+        return peer;
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :