--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/MinMaxState.java	Tue Dec 08 08:39:03 2009 +0000
@@ -0,0 +1,62 @@
+/**
+ *
+ */
+package de.intevation.gnv.state;
+
+import java.util.ArrayList;
+import java.util.Collection;
+
+import org.apache.log4j.Logger;
+
+import de.intevation.gnv.geobackend.base.Result;
+import de.intevation.gnv.state.describedata.DefaultMinMaxDescribeData;
+import de.intevation.gnv.state.describedata.DescribeData;
+
+/**
+ * @author Tim Englich <tim.englich@intevation.de>
+ * 
+ */
+public class MinMaxState extends StateBase {
+
+    /**
+     * The UID of this Class
+     */
+    private static final long serialVersionUID = -3525903792105187408L;
+    /**
+     * the logger, used to log exceptions and additonaly information
+     */
+    private static Logger log = Logger.getLogger(MinMaxState.class);
+
+    /**
+     * Constructor
+     */
+    public MinMaxState() {
+        super();
+    }
+
+    /**
+     * @see de.intevation.gnv.state.StateBase#purifyResult(java.util.Collection,
+     *      java.lang.String)
+     */
+    @Override
+    protected void purifyResult(Collection<Result> result, String uuid) {
+        log.debug("MinMaxState.purifyResult");
+        Collection<Object> describeData = this.getDescibeData(uuid);
+        if (describeData == null) {
+            describeData = new ArrayList<Object>();
+        }
+        if (result != null && result.size() == 1) {
+            
+            Result value = result.iterator().next();
+            DescribeData values = new DefaultMinMaxDescribeData(this.dataName, 
+                                                               value.getObject("MIN"), 
+                                                               value.getObject("MAX"));
+            log.debug(values.toString());
+            describeData.add(values);
+        } else {
+            log.warn("Result cannot be handled as MinMax Resultset");
+        }
+        this.setDescibeData(uuid, describeData);
+    }
+
+}