package com.qxueyou.scc.exercise.service.impl.node;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import com.qxueyou.scc.exercise.service.impl.Node;
import com.qxueyou.scc.exercise.service.impl.parser.ItemTypeParser;

public class ItemType extends Node {
	
	public ItemType(String type){
		setName("ITEM_TYPE");
		setParser(new ItemTypeParser());
		setType(type);
	}
	
	public static final String TYPE_SINGLE="SINGLE";
	
	public static final String TYPE_MULTI="MULTI";
	
	public static final String TYPE_TRUE_OR_FALSE="TRUE_OR_FALSE";

	@Override
	public boolean isComplete() {
		return false;
	}
	
	public void setType(String type){
		setAttribute("TYPE",type);
	}
	
	public String getType(){
		return (String) getAttribute("TYPE");
	}
	
	@SuppressWarnings("unchecked")
	public List<Item> getItems(){
		List<Node> children = getChildren();
		
		if(children.isEmpty()){
			return Collections.EMPTY_LIST;
		}
		
		List<Item> items = new ArrayList<Item>(children.size());
		
		for(Node node:children){
			items.add((Item) node);
		}
		
		return items;
		
	}

}