/*

 * Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code 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 General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

package com.sun.xml.internal.stream.util;

/**

 *

 * @author K.Venugopal ,Neeraj Bajaj Sun Microsystems.

 */

import java.util.Iterator;

public class ReadOnlyIterator<T> implements Iterator<T> {

    Iterator<T> iterator = null;

    public ReadOnlyIterator(){

    }

    public ReadOnlyIterator(Iterator<T> itr){

        iterator = itr;

    }

    @Override

    public boolean hasNext() {

        if(iterator  != null)

            return iterator.hasNext();

        return false;

    }

    @Override

    public T next() {

        if(iterator  != null)

            return iterator.next();

        return null;

    }

    @Override

    public void remove() {

        throw new  UnsupportedOperationException("Remove operation is not supported");

    }

}