public WrapperFactory() 
{
     
        map = new HashMap();
}

 public Attr getAttribute(Object o,
    OMElement parent) 
{
        Attr at = (Attr)map.get(o);
        if (at == null){
            if (o instanceof OMAttribute || o instanceof OMNamespace) {
                at = new AttrImpl(o, parent, this);
            }
            map.put(o, at);
        }
        return at;
}

 public Node getNode(Object o) 
{
        Node n = (Node)map.get(o);
        if (n == null) {
            if(o instanceof OMElement){
                n = new ElementImpl((OMElement)o, this);
            } else if (o instanceof OMDocument) {
                n = new DocumentImpl((OMDocument)o, this);
            } else if (o instanceof OMComment) {
                n = new CommentImpl((OMComment)o, this);
            } else if (o instanceof OMDocType) {
                n = new DoctypeImpl((OMDocType)o, this);
            } else if (o instanceof OMText){
                n = new TextImpl((OMText)o, this);
            } else if (o instanceof OMProcessingInstruction){
                n = new ProcessingInstructionImpl((OMProcessingInstruction)o, this);
            }
            map.put(o, n);
        }
        return n;
}