public Iterator getIterator(Object obj,
    Info i) throws Exception 
{
            if (!(obj instanceof Scriptable)) {
                return super.getIterator(obj, i);
            }
            if (obj instanceof NativeArray) {
                return new NativeArrayIterator((NativeArray)obj);
            }
            return new ScriptableIterator((Scriptable)obj);
}

 public VelMethod getMethod(Object obj,
    String methodName,
    Object[] args,
    Info i) throws Exception 
{
            if (!(obj instanceof Scriptable)) {
                return super.getMethod(obj, methodName, args, i);
            }
            return new JSMethod((Scriptable)obj, methodName);
}

 public VelPropertyGet getPropertyGet(Object obj,
    String identifier,
    Info i) throws Exception 
{
            if (!(obj instanceof Scriptable)) {
                return super.getPropertyGet(obj, identifier, i);
            }
            return new JSPropertyGet((Scriptable)obj, identifier);
}

 public VelPropertySet getPropertySet(Object obj,
    String identifier,
    Object arg,
    Info i) throws Exception 
{
            if (!(obj instanceof Scriptable)) {
                return super.getPropertySet(obj, identifier, arg, i);
            }
            return new JSPropertySet((Scriptable)obj, identifier);
}