--- a/flys-client/src/main/java/de/intevation/flys/client/shared/model/DefaultCollection.java	Thu Mar 24 15:48:13 2011 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/shared/model/DefaultCollection.java	Fri Mar 25 09:19:29 2011 +0000
@@ -2,7 +2,9 @@
 
 import java.util.ArrayList;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 
 /**
@@ -16,7 +18,14 @@
     protected String uuid;
 
     /** The list of artifacts that are managed by this Collection.*/
-    protected List<Artifact> artifacts;
+    protected List<CollectionItem> items;
+
+
+    /**
+     * Constructor without arguments is necessary for GWT.
+     */
+    public DefaultCollection() {
+    }
 
 
     /**
@@ -25,8 +34,8 @@
      * @param uuid The UUID.
      */
     public DefaultCollection(String uuid) {
-        this.uuid      = uuid;
-        this.artifacts = new ArrayList<Artifact>();
+        this.uuid  = uuid;
+        this.items = new ArrayList<CollectionItem>();
     }
 
 
@@ -45,20 +54,45 @@
     }
 
 
-    public void addArtifact(Artifact artifact) {
-        if (artifact != null) {
-            artifacts.add(artifact);
+    public void addItem(CollectionItem item) {
+        if (item != null) {
+            items.add(item);
         }
     }
 
 
-    public int getArtifactLength() {
-        return artifacts.size();
+    public int getItemLength() {
+        return items.size();
     }
 
 
-    public Artifact getArtifact(int idx) {
-        return artifacts.get(idx);
+    public CollectionItem getItem(int idx) {
+        if (idx >= getItemLength()) {
+            return null;
+        }
+
+        return items.get(idx);
+    }
+
+
+    public Map<String, OutputMode> getOutputModes() {
+        Map<String, OutputMode> modes = new HashMap<String, OutputMode>();
+
+        for (CollectionItem item: items) {
+            List<OutputMode> itemModes = item.getOutputModes();
+
+            if (itemModes != null) {
+                for (OutputMode itemMode: itemModes) {
+                    String name = itemMode.getName();
+                    if (!modes.containsKey(name)) {
+                        // we dont want duplicated OutputModes in our result.
+                        modes.put(name, itemMode);
+                    }
+                }
+            }
+        }
+
+        return modes;
     }
 }
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