Index: /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/NamespaceRegistryImpl.java
===================================================================
--- /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/NamespaceRegistryImpl.java	(revision 428524)
+++ /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/NamespaceRegistryImpl.java	(working copy)
@@ -404,4 +404,22 @@
         // just delegate to internal cache
         resolver.evictAllNames();
     }
+    
+    /**
+     * Check if the prefix is already present.
+     * @param prefix
+     * @return
+     * @throws RepositoryException 
+     */
+    public boolean isRegistered(String prefix) throws RepositoryException {
+        String[] allPrefixes = getPrefixes();
+        boolean flag = false;
+        for (int i = 0; i < allPrefixes.length && !flag; i++) {
+            if (prefix.equals(allPrefixes[i])) {
+                flag = true;
+                break;
+            }    
+        }
+        return flag;
+    }
 }
Index: /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/RepositoryImpl.java
===================================================================
--- /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/RepositoryImpl.java	(revision 428524)
+++ /home/ntoper/workspace/jackrabbit/src/main/java/org/apache/jackrabbit/core/RepositoryImpl.java	(working copy)
@@ -351,6 +351,16 @@
     }
 
     /**
+     * Set the root node uuid.
+     * @param fs
+     * @return
+     * @throws RepositoryException
+     */
+    public void setRootNodeId(NodeId ni) throws RepositoryException {
+        this.rootNodeId = ni;
+        }
+    
+    /**
      * Returns the root node uuid.
      * @param fs
      * @return
@@ -1013,7 +1023,22 @@
             throw new RepositoryException(msg, e);
         }
     }
+    
+    /**
+     * TODO: comment
+     *The same as loadRepProps but with a Properties file
+     * @return
+     * @throws RepositoryException
+     */
+    public void setRepProps(Properties props) throws RepositoryException {
+            // now set the default props
+            setDefaultRepositoryProperties(props);
+            // and store
+            storeRepProps(props);
+            //TODO See if SetDescriptor is better
+    }
 
+
     /**
      * Stores the properties to a persistent resource in the meta filesytem.
      *