package org.paneris.bibliomania.metasearch.util;

 import java.util.Enumeration;

 import java.util.NoSuchElementException;

 import org.paneris.bibliomania.metasearch.BookStockingFactory;

 public abstract class SearchResultsBase

     extends HackParser implements Enumeration {

   protected BookStockingFactory stockings;

   public SearchResultsBase(byte[] text,

                            BookStockingFactory stockings) {

     super(text);

     this.stockings = stockings;

   }

   protected abstract Object more();

   private Object next = null;

   public synchronized boolean hasMoreElements() {

     return next != null || (next = more()) != null;

   }

   public synchronized Object nextElement() {

     if (!hasMoreElements())

       throw new NoSuchElementException();

     Object it = next;

     next = null;

     return it;

   }

 }