GList.java

package com.liguoliang.lang.collection;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;


public class GList <T> implements Iterable<T>{
	
	private List<T> _items = new ArrayList<T>();
	
	public GList<T> add(T ... ts) {
		for (T t : ts) {
			_items.add(t);
		}
		return this;
	}
	
	public int getSize() {
		return _items.size();	
	}

	@Override
	public String toString() {
		return "GList [_items=" + _items + "]";
	}

	@Override
	public Iterator<T> iterator() {
		return new Itr();
	}
	
	private class Itr implements Iterator<T> {
		int cursor = -1;
		
		@Override
		public boolean hasNext() {
			return cursor < _items.size();
		}

		@Override
		public T next() {
			if(cursor < 0) {
				cursor = 0;
			}
			
			if(cursor > _items.size() - 1) {
				throw new IndexOutOfBoundsException();
			}
			
			T item = null;
			item = _items.get(cursor);
			cursor++;
			return item;
		}
	}
	
}