ArrayIterator.java
/*
* #%L
* prolobjectlink-jpi
* %%
* Copyright (C) 2019 Prolobjectlink Project
* %%
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
* #L%
*/
package io.github.prolobjectlink.prolog;
import java.util.Iterator;
import java.util.NoSuchElementException;
/**
* Iterator implementation over array of elements.
*
* @param <E> Generic Element Type
* @author Jose Zalacain
* @since 1.0
*/
public class ArrayIterator<E> extends AbstractIterator<E> implements Iterator<E> {
private int next = 0;
private final int size;
private final E[] elements;
/**
* Create an instance of {@link ArrayIterator} to iterate over given array of
* elements
*
* @param elements array of elements to be iterated
* @since 1.0
*/
public ArrayIterator(E[] elements) {
this.size = elements.length;
this.elements = elements;
}
public boolean hasNext() {
return next != size;
}
public E next() {
if (next >= size) {
throw new NoSuchElementException();
}
return elements[next++];
}
}