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/*
 * Copyright 2012 the original author or authors.
 *
 * 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 leap.lang.collection;

import java.lang.reflect.Array;
import java.util.Iterator;
import java.util.NoSuchElementException;

public class ArrayObjectIterator extends UnmodifiableIterator implements Iterator {

	private final Object array;
	private final int    length;
	private int current = -1;

	public ArrayObjectIterator(Object array) {
		this.array  = array;
		this.length = Array.getLength(array);
	}
	
	protected ArrayObjectIterator(Object array,int length) {
		this.array  = array;
		this.length = length;
	}

	public boolean hasNext() {
		return current < (length - 1);
	}

	@SuppressWarnings("unchecked")
    public E next() {
		try {
			return (E)Array.get(array,++current);
		} catch (ArrayIndexOutOfBoundsException e) {
			throw new NoSuchElementException();
		}
	}
}