/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2004, 2021 Oracle and/or its affiliates. All rights reserved.
 *
 * Oracle licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.xml.fastinfoset.stax.events;
import java.util.Iterator;
import com.sun.xml.fastinfoset.CommonResourceBundle;
import java.util.NoSuchElementException;


public class EmptyIterator<E> implements Iterator<E> {

    private static final EmptyIterator<? extends Object> INSTANCE = new EmptyIterator<>();

    /** Creates a new instance of EmptyIterator */
    private EmptyIterator() {
    }

    @SuppressWarnings("unchecked")
    public static <E> EmptyIterator<E> getInstance() {
        return (EmptyIterator<E>)INSTANCE;
    }

    @Override
    public boolean hasNext() {
        return false;
    }

    @Override
    public E next() throws NoSuchElementException {
        throw new NoSuchElementException();
    }

    @Override
    public void remove() {
         throw new  UnsupportedOperationException(
                 CommonResourceBundle.getInstance().getString("message.emptyIterator"));
    }
}
