74 lines
1.6 KiB
Java
74 lines
1.6 KiB
Java
package iterator;
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import arraylist.ArrayIndexList;
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import position.Position;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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/**
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* Created with MONSTER.
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* User: xgiovio
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* Date: 06/04/2014
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* Time: 21:13
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*/
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// generic iterable list creation using an arraylist. the class calling this metod should pass an array of Position<E>
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public class IterablePositionIndexList<E> implements Iterable<Position<E>> {
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Position<E>[] new_structure = null;
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public IterablePositionIndexList (Position<E>[] in){
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new_structure = in;
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}
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@Override
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public Iterator<Position<E>> iterator() {
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return new getpositionsiterator(new_structure);
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}
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class getpositionsiterator implements Iterator<Position<E>>{
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public getpositionsiterator(Position<E>[] in_elements){
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for (int i = 0;i< in_elements.length;i++){
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data.add(i,in_elements[i]);
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}
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}
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@Override
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public boolean hasNext() {
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if (pos <= data.size() -2){
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return true;
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}else {
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return false;
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}
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}
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@Override
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public Position<E> next() throws NoSuchElementException {
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if (hasNext()){
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pos++;
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return data.get(pos);
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}else {
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throw new NoSuchElementException();
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}
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}
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@Override
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public void remove() {
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throw new UnsupportedOperationException ();
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}
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private ArrayIndexList<Position<E>> data = new ArrayIndexList<Position<E>>();
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private int pos = -1;
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}
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}
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