--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/State.java	Fri Sep 28 12:13:47 2012 +0200
@@ -0,0 +1,47 @@
+/**
+ *
+ */
+package de.intevation.gnv.state;
+
+import java.io.Serializable;
+import java.util.Collection;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+
+import de.intevation.artifacts.CallMeta;
+import de.intevation.gnv.state.exception.StateException;
+
+/**
+ * @author Tim Englich <tim.englich@intevation.de>
+ * 
+ */
+public interface State extends Serializable {
+
+    public void setup(Node configuration);
+
+    public String getID();
+
+    public String getDescription();
+
+    public void describe(Document document, Node rootNode, 
+                         CallMeta callMeta, String uuid);
+
+    public void setParent(State state);
+
+    public State getParent();
+
+    public Collection<InputValue> getRequiredInputValues();
+
+    public void putInputData(Collection<InputData> inputData, 
+                             String uuid)throws StateException;
+
+    public Collection<InputData> getInputData() throws StateException;
+
+    public void advance(String uuid, CallMeta callMeta)
+                                                    throws StateException;
+    public void initialize(String uuid, CallMeta callMeta)
+                                                    throws StateException;
+    
+
+}