node4classmajors.java

来自「一个可以存储和打印成绩单的系统」· Java 代码 · 共 41 行

package org.minjey.cjsjk.view.tree.node;

import java.util.HashMap;
import java.util.Iterator;

public abstract class Node4ClassMajors extends MyTreeNode {
	
	public Node4ClassMajors(Object userObject) {
		super(userObject);
	}
	
	@Override
	public void buildChildNodes() {
		if(!(getUserObject() instanceof String)) {
			if(!getMajors().isEmpty()) {
				super.buildChildNodes();
			} else {
				removeAllChildren();
			}
		} else {
			super.buildChildNodes();
		}
	}

	public HashMap<Integer, Object> getMajors() {
		Node4ClassMajors parent = (Node4ClassMajors)getParent();
		HashMap<Integer, Object> pobjs = parent.getMajors();
		HashMap<Integer, Object> cobjs = new HashMap<Integer, Object>();
		Iterator it = pobjs.values().iterator();
		while(it.hasNext()) {
			Object cobj = it.next();
			if(isLeagleChild(userObject, cobj)) {
				Integer id = (Integer)reflector.getValue(cobj, "id");
				cobjs.put(id, cobj);
			}
		}
		return cobjs;
	}
	
}