How to separate Models from the main Program?

Hi, 

One more novice question -- more of a java related, I suppose. 

I have included the code I have after this message , where all models are
in the same file. Since Menu model changes constantly (every time there is
a new page, it has to be added in the menu!), I realized that it would be
far more convenient to have MenuDamModel class in separate file.  So, I
tried to make separate files for MenuDamModel and HeadFootModel.  But I
either get Class not resolve (obviously, Classpath related!) and
MeuDamModel duplicated (or something like that!). Can some body provide me
some tips, examples, docs for this?

I am using enhydra5.0, it would be even better if the tips are directly
related to it.

Thanks.

Damar  

======  start of the code =========================

import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import org.w3c.dom.*;
import org.enhydra.xml.xmlc.*;

import org.enhydra.barracuda.core.comp.*;
import org.enhydra.barracuda.core.comp.helper.*;

import java.util.Date;
import java.text.DateFormat;

public class MainDam extends ComponentGateway {

 public Document handleDefault (BComponent root, ViewContext vc,
HttpServletRequest req, HttpServletResponse resp) {
      		
        if (xmlcFactory==null) xmlcFactory = new
XMLCStdFactory(this.getClass().getClassLoader(), new StreamXMLCLogger());
        XMLObject page =
xmlcFactory.create(familySite.presentation.MainDamHTML.class);

        BTemplate templateComp = new BTemplate();
        templateComp.setView(new
DefaultTemplateView(page.getElementById("MainDam")));
	 
	templateComp.addModel(new MainDamModel());
	templateComp.addModel(new MenuDamModel());
	templateComp.addModel(new HeadFootModel());
	
        root.addChild(templateComp);
    
        return page;
    }

    //---------------MainDamModel ------------------------

    class MainDamModel extends AbstractTemplateModel {
    
        //register the model by name
        public String getName() {
            return "MainDam";
        }
        
        public Object getItem(String key) {
            ViewContext vc = getViewContext();
            if (key.equals("Title")) return "DTS main Page";
            
	     else if (key.equals("MainText")) {
		XMLObject mainText 
=xmlcFactory.create(familySite.presentation.TextDamHTML.class);
		Node mainTextNode = mainText.getElementById("mainText");
		return
vc.getElementFactory().getDocument().importNode(mainTextNode, true);
	     }            
	    else return super.getItem(key);
	}
    }



 //---------------MenuDamModel ------------------------

    class MenuDamModel extends AbstractTemplateModel {
    
        //register the model by name
        public String getName() {
            return "MenuDam";
        }
	 //provide items by key
        public Object getItem(String key) {
            ViewContext vc = getViewContext();

	if (key.equals("Menu")){
		XMLObject menu = 
xmlcFactory.create(familySite.presentation.MenuDamHTML.class);
		Node menuNode = menu.getElementById("menu");
		return
vc.getElementFactory().getDocument().importNode(menuNode, true);
		}
		else if(key.equals("DamarMain")){
			BLink blink = new BLink(" ", "/mypage", vc);
                return blink;
		}
		
		else if(key.equals("PattyMain")){
			BLink blink=new BLink("","/pattymain", vc);
			return blink;
			}


	else return super.getItem(key);
        }
    }


 //---------------HeadFootModel ------------------------
    /**
     * HeadFootModel
     */
    class HeadFootModel extends AbstractTemplateModel {
    
        //register the model by name
        public String getName() {
            return "HeadFoot";
        }
	 //provide items by key
        public Object getItem(String key) {
            ViewContext vc = getViewContext();

	    if (key.equals("Header")){
		XMLObject header = 
xmlcFactory.create(familySite.presentation.HeaderHTML.class);
		Node headerNode = header.getElementById("header");
		return
vc.getElementFactory().getDocument().importNode(headerNode, true);
		}
	    
            else if (key.equals("Footer")) {
                XMLObject footer = 
xmlcFactory.create(familySite.presentation.FooterHTML.class);
                Node footerNode = footer.getElementById("footer");
                return
vc.getElementFactory().getDocument().importNode(footerNode, true);
            }
	    
	    	else if(key.equals("Sarine")){
			BLink blink1 = new 

			BLink("","http://otherDomain", vc);
			return blink1;
		}

	     else return super.getItem(key);
        }
    }
}