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/*
 * Copyright (c) 2021 Goldman Sachs.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Eclipse Distribution License v. 1.0 which accompany this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 */

package org.eclipse.collections.impl;

import java.util.Iterator;

/**
 * An iterator that adapts another iterator and throws unsupported operation exceptions when calls
 * to the remove method are made.
 */
public class UnmodifiableIteratorAdapter
        implements Iterator
{
    private final Iterator iterator;

    public UnmodifiableIteratorAdapter(Iterator iterator)
    {
        this.iterator = iterator;
    }

    @Override
    public boolean hasNext()
    {
        return this.iterator.hasNext();
    }

    @Override
    public E next()
    {
        return this.iterator.next();
    }

    @Override
    public void remove()
    {
        throw new UnsupportedOperationException("Cannot call remove() on " + this.getClass().getSimpleName());
    }
}




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