nodefactory.java

一个可以存储和打印成绩单的系统

package org.minjey.cjsjk.view.tree;

import java.util.HashMap;

import org.minjey.cjsjk.view.tree.node.MyTreeNode;

public abstract class NodeFactory {
	
	private static NodeFactory factory;
	
	public static NodeFactory getNodeFactory() {
		if(factory == null) {
			factory = new NodeFactoryImpl();
		}
		return factory;
	}
	
	public abstract Class getChildType(MyTreeNode node);
	
	public abstract Class getChildType(Object userObject);
	
	public abstract boolean isNodeObject(Object obj);
	
	public abstract HashMap<Integer, Object> getChildObjects(MyTreeNode node);
	
	//public abstract HashMap<Integer, Object> getChildObjects(Object userObject);
}