public OptimizePartsConfig() 
{
		namespaces = new HashMap();
		expressions = new Vector();
}

 public  void addExpression(String expression) 
{
		expressions.add(expression);
}

 public  void addNamespaces(String prefix,
    String ns) 
{
		namespaces.put(prefix, ns);
}

 public boolean equal(PolicyComponent arg0) 
{
		throw new UnsupportedOperationException("Not relevant");
}

 public Vector getExpressions() 
{
		return expressions;
}

 public QName getName() 
{
		return new QName(RampartConfig.NS, OPTIMIZE_PARTS_LN);
}

 public Map getNamespaces() 
{
		return namespaces;
}

 public short getType() 
{
        return Constants.TYPE_ASSERTION;
}

 public boolean isOptional() 
{
		throw new UnsupportedOperationException("Not relevant");
}

 public PolicyComponent normalize() 
{
		//TODO
		throw new UnsupportedOperationException("TODO");
}

 public  void serialize(XMLStreamWriter writer) throws XMLStreamException 
{
		String prefix = writer.getPrefix(RampartConfig.NS);
        if (prefix == null) {
            prefix = RampartConfig.NS;
            writer.setPrefix(prefix, RampartConfig.NS);
        }                
        writer.writeStartElement(RampartConfig.NS, OPTIMIZE_PARTS_LN);
        if((expressions != null) && (expressions.size() >0)){
        	  writer.writeStartElement(RampartConfig.NS, EXPRESSIONS_LN);
        	  Iterator ite = expressions.iterator();
        	  while(ite.hasNext()){
        		  writer.writeStartElement(RampartConfig.NS, EXPRESSION_LN);
        		  String exp = (String)ite.next();
        		  writer.writeCharacters(exp);
        		  writer.writeEndElement();
        	  }
              writer.writeEndElement();
        }
        if((namespaces != null) && (namespaces.size() >0)){
        	  writer.writeStartElement(RampartConfig.NS, NAMESPACES_LN);
        	  Iterator ite = namespaces.keySet().iterator();
        	  while(ite.hasNext()){
        		  String strPrefix = (String)ite.next();
        		  String strURI = (String) namespaces.get(strPrefix);
        		  writer.writeAttribute(URI_ATTR , strURI);
        		  writer.writeAttribute(PREFIX_ATTR, strPrefix);
        		  writer.writeEndElement();
        	  }
              writer.writeEndElement();
        }
        writer.writeEndElement();
}