[no bug] refactor code.   IADTObject should have isReadOnly method
diff --git a/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/design/editparts/model/TargetConnectionSpaceFiller.java b/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/design/editparts/model/TargetConnectionSpaceFiller.java
index a5d33a4..fcbb8a2 100644
--- a/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/design/editparts/model/TargetConnectionSpaceFiller.java
+++ b/bundles/org.eclipse.wst.xsd.ui/src-adt-xsd/org/eclipse/wst/xsd/ui/internal/design/editparts/model/TargetConnectionSpaceFiller.java
@@ -41,5 +41,10 @@
   {
    
   }
+
+  public boolean isReadOnly()
+  {
+    return false;
+  }
   
 }