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'databene commons' is an open source Java library by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * Licensed 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 org.databene.commons.iterator;

import java.util.Iterator;

import org.databene.commons.Assert;

/**
 * {@link Iterator} implementation that iterates the elements of an array.
 * Created at 30.06.2009 09:26:55
 * @param  the type to iterate
 * @since 0.5.0
 * @author Volker Bergmann
 */

public class ArrayIterator implements Iterator {

	private E[] array;
	private int cursor;
	
    public ArrayIterator(E[] array) {
    	Assert.notNull(array, "array");
	    this.array = array;
	    this.cursor = 0;
    }

    @Override
	public boolean hasNext() {
	    return (cursor < array.length);
    }

    @Override
	public E next() {
	    return array[cursor++];
    }

    @Override
	public void remove() {
	    throw new UnsupportedOperationException("remove() is not supported by " + getClass());
    }

}