package foundation.state;

import java.util.Iterator;

import foundation.util.MapList;

public class States implements Iterable<State> {

	private String categoryCode;
	private MapList<String, State> items;
    
	
	public States(String categoryCode) {
		this.categoryCode = categoryCode;
		items = new MapList<String, State>();
	}
	
	public void loadOne(State state) {
		items.add(state.getCode(), state);
	}

	public String getCategoryCode() {
		return categoryCode;
	}

	public State get(String code) {
		return items.get(code);
	}

	@Override
	public Iterator<State> iterator() {
		return items.iterator();
	}

	public State getFirst() {
		if (items.isEmpty()) {
			return null;
		}
		
		return items.get(0);
	}
}