--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gwt-client/src/main/java/org/dive4elements/river/client/shared/model/Data.java	Thu Apr 25 15:23:37 2013 +0200
@@ -0,0 +1,62 @@
+package org.dive4elements.river.client.shared.model;
+
+import java.io.Serializable;
+
+
+/**
+ * A Data object represents the necessary data of a single state of the
+ * artifact. It might provide several DataItems or just a single DataItem. The
+ * <code>type</code> makes it possible to validate the input in the client.
+ *
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public interface Data extends Serializable {
+
+    /**
+     * Returns the label of the item.
+     *
+     * @return the label.
+     */
+    public String getLabel();
+
+
+    /**
+     * Returns the description of the item.
+     *
+     * @return the description.
+     */
+    public String getDescription();
+
+
+    /**
+     * Returns the type of the item.
+     *
+     * @return the type.
+     */
+    public String getType();
+
+
+    /**
+     * Returns the DataItems provided by this Data object.
+     *
+     * @return the DataItems.
+     */
+    public DataItem[] getItems();
+
+
+    /**
+     * Returns the default value of this data object.
+     *
+     * @return the default value.
+     */
+    public DataItem getDefault();
+
+
+    /**
+     * Returns the values as colon separated string.
+     *
+     * @return colon separated string.
+     */
+    public String getStringValue();
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :