org.jboss.managed.plugins.advice.WrapperIterator Maven / Gradle / Ivy

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/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.managed.plugins.advice;

import java.util.Iterator;

/**
 * WrapperIterator.
 * 
 * @param  the interface
 * @author Adrian Brock
 * @version $Revision: 1.1 $
 */
public class WrapperIterator implements Iterator
{
   /** The delegate */
   private Iterator delegate;

   /** The interface class */
   private Class interfaceClass;
   
   /**
    * Create a new WrapperIterator.
    * 
    * @param delegate the delegate
    * @param interfaceClass the interface class
    */
   public WrapperIterator(Iterator delegate, Class interfaceClass)
   {
      if (delegate == null)
         throw new IllegalArgumentException("Null delegate");
      if (interfaceClass == null)
         throw new IllegalArgumentException("Null interface class");
      
      this.delegate = delegate;
      this.interfaceClass = interfaceClass;
   }

   public boolean hasNext()
   {
      return delegate.hasNext();
   }

   public T next()
   {
      T next = delegate.next();
      return WrapperAdvice.createProxy(next, interfaceClass);
   }

   public void remove()
   {
      throw new UnsupportedOperationException();
   }
}